Patent Publication Number: US-9905359-B2

Title: Wireless power antenna winding including heat pipe and method therefor

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     Related subject matter is contained in co-pending U.S. patent application Ser. No. 14/842,783 entitled “Wireless Charging Pad with Natural Draft Cooling and Method Therefor,” filed on Sep. 1, 2015, the disclosure of which is hereby incorporated by reference. 
     Related subject matter is contained in co-pending U.S. patent application Ser. No. 14/842,788 entitled “Wireless Charging Pad with Interdependent Temperature Control and Method Therefor,” filed on Sep. 1, 2015, the disclosure of which is hereby incorporated by reference. 
     Related subject matter is contained in co-pending U.S. patent application Ser. No. 14/842,790 entitled “Wireless Power Transmission Antenna with Thermally Conductive Magnetic Shield and Method Therefor,” filed on Sep. 1, 2015, the disclosure of which is hereby incorporated by reference. 
     Related subject matter is contained in co-pending U.S. patent application Ser. No. 14/842,792 entitled “Cart for Wirelessly Recharging Mobile Computing Devices,” filed on Sep. 1, 2015, the disclosure of which is hereby incorporated by reference. 
     Related subject matter is contained in co-pending U.S. patent application Ser. No. 14/842,794 entitled “Cover System for Wireless Power Pad,” filed of even date herewith on Sep. 1, 2015, the disclosure of which is hereby incorporated by reference. 
     Related subject matter is contained in co-pending U.S. patent application Ser. No. 14/842,795 entitled “Peak Power Caching in a Wireless Power System,” filed on Sep. 1, 2015, the disclosure of which is hereby incorporated by reference. 
     Related subject matter is contained in co-pending U.S. patent application Ser. No. 14/842,797 entitled “Wireless Power Charging Device with Rear Side Magneto Isolation Marking,” filed on Sep. 1, 2015, the disclosure of which is hereby incorporated by reference. 
     Related subject matter is contained in co-pending U.S. patent application Ser. No. 14/842,798 entitled “Articulating Receiver for Wireless Power Delivery System,” filed on Sep. 1, 2015, the disclosure of which is hereby incorporated by reference. 
     Related subject matter is contained in co-pending U.S. patent application Ser. No. 14/842,800 entitled “System for Securing a Wireless Power Pad,” filed on Sep. 1, 2015, the disclosure of which is hereby incorporated by reference. 
     FIELD OF THE DISCLOSURE 
     The present disclosure generally relates to information handling systems, and more particularly relates to wireless power for information handling systems. 
     BACKGROUND 
     As the value and use of information continues to increase, individuals and businesses seek additional ways to process and store information. One option is an information handling system. An information handling system generally processes, compiles, stores, or communicates information or data for business, personal, or other purposes. Technology and information handling needs and requirements can vary between different applications. Thus information handling systems can also vary regarding what information is handled, how the information is handled, how much information is processed, stored, or communicated, and how quickly and efficiently the information can be processed, stored, or communicated. The variations in information handling systems allow information handling systems to be general or configured for a specific user or specific use such as financial transaction processing, airline reservations, enterprise data storage, or global communications. In addition, information handling systems can include a variety of hardware and software resources that can be configured to process, store, and communicate information and can include one or more computer systems, graphics interface systems, data storage systems, networking systems, and mobile communication systems. Information handling systems can also implement various virtualized architectures. Data and voice communications among information handling systems may be via networks that are wired, wireless, or some combination. 
     A wireless power delivery system typically includes a wireless charging pad on to which a device can be placed for charging. The device can communicate with the pad via near field communication (NFC) to indicate that the device is available to receive power. The wireless power delivery system can then wirelessly transmit power to the device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       It will be appreciated that for simplicity and clarity of illustration, elements illustrated in the Figures are not necessarily drawn to scale. For example, the dimensions of some elements may be exaggerated relative to other elements. Embodiments incorporating teachings of the present disclosure are shown and described with respect to the drawings herein, in which: 
         FIG. 1  is a block diagram of a wireless power delivery system according to an embodiment of the present disclosure; 
         FIG. 2 a    illustrates a side view of a wireless charging pad utilizing convection cooling according to a specific embodiment of the present disclosure; 
         FIG. 2 b    illustrates a top view of the wireless charging pad of  FIG. 2 a    according to a specific embodiment of the present disclosure; 
         FIG. 2 c    illustrates a side view of a wireless charging pad utilizing convection cooling according to another specific embodiment of the present disclosure; 
         FIG. 2 d    illustrates a top view of the wireless charging pad of  FIG. 2 c    according to a specific embodiment of the present disclosure; 
         FIG. 2 e    illustrates a side view of a wireless charging pad utilizing convection cooling according to still another specific embodiment of the present disclosure; 
         FIG. 2 f    illustrates a top view of the wireless charging pad of  FIG. 2 e    according to a specific embodiment of the present disclosure; 
         FIG. 2 g    is a flow diagram illustrating a method for providing passive cooling at a wireless charging pad according to a specific embodiment of the present disclosure; 
         FIG. 3 a    illustrates a top view of a wireless charging mat having thermal control according to a specific embodiment of the present disclosure; 
         FIG. 3 b    illustrates the wireless charging mat of  FIG. 3 a    including devices receiving wireless power according to a specific embodiment of the present disclosure; 
         FIG. 3 c    illustrates a top view of a wireless charging pad having thermal control according to another embodiment of the present disclosure. 
         FIG. 3 d    is a flow diagram illustrating a method for controlling wireless charging according to a specific embodiment of the present disclosure; 
         FIG. 4 a    illustrates a top view of a wireless power antenna assembly according to a specific embodiment of the present disclosure; 
         FIG. 4 b    illustrates a thermally conductive magnetic shield according to specific embodiment of the present disclosure; 
         FIG. 4 c    illustrates a thermally conductive magnetic shield according to another embodiment of the present disclosure; 
         FIG. 5 a    is a block diagram illustrating a wireless power system including an antenna utilizing a heat pipe according to a specific embodiment of the present disclosure; 
         FIG. 5 b    is a block diagram illustrating a wireless power system including an antenna utilizing a heat pipe according to another embodiment of the present disclosure; 
         FIG. 5 c    is a block diagram illustrating a wireless power system including an antenna utilizing a heat pipe according to still another embodiment of the present disclosure; 
         FIG. 6 a    is a diagram illustrating peak power caching in an information handling system according to an embodiment of the present disclosure; 
         FIG. 6 b    is a diagram illustrating a method for caching peak power in an information handling system via a wireless charging module according to an embodiment of the present disclosure; 
         FIG. 7 a    is a diagram illustrating a cart for wirelessly recharging mobile computing devices; 
         FIG. 7 b    is a diagram illustrating a portion of the cart; 
         FIG. 7 c    is a diagram illustrating an alternative embodiment of the portion of the cart; 
         FIG. 8  diagram illustrating a security tie access point for a charging pad of the wireless power delivery system according to an embodiment of the present disclosure; 
         FIG. 9  another diagram illustrating a security tie access point for a charging pad of the wireless power delivery system according to an embodiment of the present disclosure; 
         FIG. 10  diagram illustrating a security tie access point for a charging pad of the wireless power delivery system according to an embodiment of the present disclosure; 
         FIGS. 11 a  and 11 b    are diagrams illustrating an embodiment of a wireless power delivery system including a wireless charging pad and a pad covering device according to an embodiment of the present disclosure; 
         FIGS. 11 c  and 11 d    are diagrams illustrating another embodiment of a wireless power delivery system including a wireless charging pad and a pad covering device according to an embodiment of the present disclosure; 
         FIGS. 12 a  and 12 b    are diagrams illustrating another embodiment of a wireless power delivery system including a wireless charging pad and a pad covering device according to an embodiment of the present disclosure; 
         FIG. 13 a    is a front view of the back side of a mobile computing device, according to an embodiment of the disclosure; 
         FIG. 13 b    is a side view of the mobile computing device with a wireless power receiver deployed to a first position; 
         FIG. 13 c    is another side view of the mobile computing device with the wireless power receiver deployed to a second position; 
         FIG. 13 d    is another side view of the mobile computing device with the wireless power receiver deployed to a third position; 
         FIG. 14 a    is a diagram illustrating a back side of a mobile computing device including an isolation marker according to an embodiment of the present disclosure; 
         FIG. 14 b    is a diagram illustrating a side view of the mobile computing device with the wireless power receiver and isolation marker deployed to a first position according to an embodiment of the present disclosure; 
         FIG. 14 c    is a diagram illustrating a top view of the mobile computing device in a first location on a wireless charging pad according to an embodiment of the present disclosure; and 
         FIG. 14 d    is a diagram illustrating a top view of the mobile computing device in a second location on a wireless charging pad according to an embodiment of the present disclosure. 
     
    
    
     The use of the same reference symbols in different drawings indicates similar or identical items. 
     DETAILED DESCRIPTION OF THE DRAWINGS 
     The following description in combination with the Figures is provided to assist in understanding the teachings disclosed herein. The description is focused on specific implementations and embodiments of the teachings, and is provided to assist in describing the teachings. This focus should not be interpreted as a limitation on the scope or applicability of the teachings. 
       FIG. 1  shows a wireless power delivery system  100  that includes a wireless charging pad  102  for information handling systems  104  and  106 . For purposes of this disclosure, the information handling system may include any instrumentality or aggregate of instrumentalities operable to compute, classify, process, transmit, receive, retrieve, originate, switch, store, display, manifest, detect, record, reproduce, handle, or utilize any form of information, intelligence, or data for business, scientific, control, entertainment, or other purposes. For example, an information handling system may be a personal computer, a PDA, a consumer electronic device, a network server or storage device, a switch router or other network communication device, or any other suitable device and may vary in size, shape, performance, functionality, and price. The information handling system may include memory, one or more processing resources such as a central processing unit (CPU) or hardware or software control logic. Additional components of the information handling system may include one or more storage devices, one or more communications ports for communicating with external devices as well as various input and output (I/O) devices, such as a keyboard, a mouse, and a video display. The information handling system may also include one or more buses operable to transmit communications between the various hardware components. 
     The wireless charging pad  102  includes wireless power sources  108  and  110 , and antennas  112  and  114 . The information handling system  104  includes an antenna  116  and a wireless charger  118 . The information handling system  106  includes an antenna  120  and a wireless charger  122 . The wireless power source  108  is in communication with the antenna  116 , which in turn is in communication with the antenna  116  of the information handling system  104  and with the antenna  120  of the information handling system  106 . The antenna  116  is in communication with the wireless charger  118 . The antenna  120  is in communication with the wireless charger  122 . 
     The wireless charging pad  102  can detect when a device such as one of the information handling systems  104  and  106  is placed on top of the wireless charging pad, and can transmit a detect signal in response to detecting the device. For example, the wireless charging pad  102  can detect the information handling system  104  when a light sensor on the wireless charging pad  102  is covered by the information handling system, by a pressure sensor of the wireless charging pad detecting the information handling system, by metal tabs of the wireless charging pad being placed in physical communication with the information handling system, and the like. The information handling system  104  can receive the detect signal from the wireless charging pad, and can respond by transmitting a presence signal to the wireless charging pad. The presence signal can include a repeating pulse signal, referred to as a chirp, and can also include information associated with the information handling system  104 , such as a class of the information handling system. The class of the information handling system  104  can indicate a maximum power needed for the information handling system, or the like. 
     The wireless charging pad  102  can receive the presence signal from the information handling system  104 , and can then set an initial power level to be provided from the wireless power source  108  to the information handling system. The initial power level can be a minimum power level available from the wireless charging pad  102 , can be a maximum power level available from the wireless charging pad, or can be any power level in between the minimum and maximum power levels. The wireless charging pad  102  can then transmit the wireless power to the information handling system  104  via the antenna  112 . The wireless charging pad  102  can use one or more techniques to provide power wirelessly, including inductive techniques, resonant inductive techniques, capacitive transfer techniques, beamed power transfer such as laser or microwave transfer, or the like. However for purposes of discussion, it is assumed that the wireless charging pad  102  transfers power wirelessly using inductive power transfer. The antenna  116  of the information handling system  104  can receive the wireless power from the antenna  112  and can provide the power to the wireless charger  118 , which in turn can convert the power to be used by the information handling system  104 . 
     The information handling system  104  can monitor its current operating conditions and can determine whether to change a power state of the information handling system. For example, if the information handling system  104  is receiving the maximum amount of power from the wireless charging pad  102  and then the information handling system enters a lower power mode, the information handling system can send a power state change signal to the wireless charging pad  102 . The power state change can indicate a new power state for the information handling system  104 . The wireless charging pad  102  can receive the power state change signal and can adjust the power level provided by the wireless power source  108  to the information handling system  104 , such that a proper power level is provided to the information handling system without having excess power that is not used or not having enough power for the information handling system. The information handling system  104  can continually monitor its operating mode and can provide any necessary state change signals to the wireless charging pad  102 . 
     The information handling system  106  can also receive the detect signal from the wireless charging pad  102  in response to the information handling system being placed on top of the wireless charging pad. The information handling system  106  can respond to the detect signal by transmitting a presence signal similar to the presence signal of the information handling system  104  to the wireless charging pad. The wireless charging pad  102  can receive the presence signal from the information handling system  106 , and can then set an initial power level to be provided from the wireless power source  110  to the information handling system. The wireless power can then be transmitted from the wireless charging pad  102  to the information handling system  106  via the antenna  114 . The antenna  120  can receive the wireless power from the antenna  114  and can provide the power to the wireless charger  122 , which in turn can convert the power to be used by the information handling system  106 . The information handling system  106  can monitor its operating modes and can provide any necessary state change signals to the wireless charging pad  102  in a substantially similar fashion as the information handling system  104 . 
     In an embodiment, when the wireless charging pad  102  provides wireless power to both of the information handling systems  104  and  106 , the wireless charging pad can provide equal amounts of power to each of the information handling systems, can prioritize which information handling system to provide more power to, or the like. The information handling systems  104  and  106  can receive information indicating an amount of power to be provided to the information handling system from the wireless charging pad  102 , and the like. The information handling systems  104  and  106  can utilize this information to determine whether the power available from the wireless charging pad  102  is enough to operate the information handling system at a maximum power operating mode or if the information handling system should operate in a lower operating mode. Each of the information handling systems  104  and  106  can dynamically adjust its operating mode based on the power available from the wireless charging pad  102 . Thus, the wireless charging pad  102  and the information handling systems  104  and  106  can continually provide feedback to each other to adjust the amount of power provided from the wireless charging pad to the information handling systems. 
       FIG. 2 a    illustrates a side view of a wireless charging pad  200  that utilizes convection cooling according to a specific embodiment of the present disclosure. Wireless charging pad  200  includes a top portion  200   a  and a base portion  200   b . Top portion  200   a  includes an outlet  201  for exhausting heated air, and base portion  200   b  includes one or more inlets  202  for receiving ambient air. Top portion  200   a  also includes one or more wireless power antennas  203 , attached to an inside surface of top portion  200   a .  FIG. 2 b    illustrates a top view of the wireless charging pad  200 , also showing placement of outlet vent  201 , inlet vents  202 , and antennas  203 . Top portion  200   a  and bottom portion  200   b  form an enclosure having an open cavity within. In addition to antennas  203 , the enclosure can include a wireless power controller and other components, not shown in  FIGS. 2 a  and 2 b   . As shown at  FIG. 2 b   , inlet vents  202  can be distributed around the perimeter of base portion  200   b . Furthermore, each of inlets  202  can be positioned relative to a respective antenna  203  to provide a direct path of airflow from a specific inlet  202 , passing by a corresponding antenna  203 , and exiting at outlet  201 . One of skill will appreciate that each inlet vent  202  can be larger than shown. In one embodiment, inlets  202  can be contiguous, forming a single inlet extending along the entire perimeter of pad  200 . 
     A major surface of top portion  200   a  is inclined relative to base portion  200   b , the inclination indicated by reference  204 , α. For example, in this particular embodiment, top portion  200   a  is substantially conical, reaching an apex at outlet  201  at the center of top portion  200   a . Inclination angle  204  can be between a couple degrees and approximately ten degrees, and is typically about five degrees. One of skill will appreciate that angle  204  can be greater, for example thirty degrees, because the increased height  205  can result in increased airflow. In another embodiment, angle  204  can be greater than ten degrees. A height of the internal cavity is indicated by reference  205 , h. Height h depends on a diameter of base  200   b  and on angle  204 , but can range from 5 millimeters to 20 millimeters or more, and is typically about 5-10 millimeters. In an embodiment, outlet  201  and inlet  202  can be implemented using perforated metal or plastic, such as eighty percent hex-perforated material, wherein the value eighty percent refers to a material having an area that is eighty percent openings and twenty percent non-porous material. The dimensions of outlet  201  can vary based on the total dimensions of pad  200 . For example, pad  200  may be approximately two feet in diameter and outlet  201  can be approximately five inches across. One of skill will appreciate that pad  200  may be smaller or larger without departing from the scope of this disclosure. 
     During operation of wireless charging pad  200 , heat is generated by antennas  203 . A wireless antenna can generate heat due to resistive losses within the antenna inductor coil, eddy currents induced in conductive materials in the vicinity of magnetic flux generated by the antenna, and eddy currents induced in a magnetic shield that is typically included at an antenna assembly. A wireless charging pad may also be heated by the device being charged. Air in the vicinity of antenna  203  is heated and naturally rises by thermal convection. A thermal gradient between inlet  202  and outlet  201  results in a corresponding air density and pressure differential between the inlet and outlet, causing ambient air to flow into inlet  202  and exhaust from outlet  201 . Accordingly, a natural draft is created, pulling ambient air into inlet  202  and exhausting heated air from outlet  201 . For example, if the temperature of ambient air at inlet  202  is 23° C. and the temperature of air at the top of the cavity formed by top portion  200   a , having been heated by antenna  213 , is 55° C., the temperature differential across height  205  is 32° C. Under these circumstances, and for an enclosure having typical dimensions described above, airflow of approximately one cubic foot per minute (1 cfm) can be achieved without utilizing any form of active cooling, such as airflow provided by a fan. 
     The airflow can be calculated using a conservation of energy equation, such as Bernoulli&#39;s equation, along a streamline from a point 1  to a point 2 ,
 
 P   1 +½ρ 1   V   1   2 +ρ 1   gh   1   =P   2 +½ρ 2   V   2   2 +ρ 2   gh   2 +½ρ f   FV   2   2 .   [1]
 
Where: P1 is the internal energy (static pressure),
         ½ρV 2  is kinetic energy (dynamic pressure),   ρgh is potential energy (potential pressure), and   ½ρFV 2  is frictional energy losses due to the perforated inlet/outlets;       

       FIG. 2 c    illustrates a side view of a wireless charging pad  210  utilizing convection cooling according to another specific embodiment of the present disclosure. Charging pad  210  is similar to pad  200  of  FIGS. 2 a  and 2 b   , however the footprint of the enclosure is rectangular instead of circular. Accordingly, the top surface is pyramidal instead of conical. Pad  210  includes a top portion  210   a  and a base portion  210   b . A major surface of top portion  210   a  is inclined relative to base portion  210   b , the inclination indicated by reference  214 , α. Top portion  210   a  includes an outlet  211  for exhausting heated air, and base portion  210   b  includes one or more inlets  212  for receiving ambient air. Top portion  210   a  also includes one or more wireless power antennas  213 , attached to an inside surface of top portion  210   a .  FIG. 2 d    illustrates a top view of the wireless charging pad  210 , also showing placement of outlet vent  211 , inlet vents  212 , and antennas  213 . Top portion  210   a  and bottom portion  210   b  form an enclosure having an open cavity within. Operation of pad  210  is the same as described above with reference to pad  200 . In another embodiment, not shown, a charging pad may be triangular, hexagonal, or another shape. Any pad implementation that includes an internal cavity having elevation between an air inlet vent and an exhaust vent, and a wireless charging antenna positioned approximately inline and between the inlet vent and exhaust vent will provide the passive cooling effect disclosed herein. 
       FIG. 2 e    illustrates a side view of a wireless charging pad  220  utilizing convection cooling according to still another specific embodiment of the present disclosure. Charging pad  220  is also rectangular and includes an inclined top surface, however an outlet vent  221 , and the enclosure apex, is located at the rear of the pad. Pad  220  includes an inlet  222  for receiving ambient air, and at least one antenna  223  located between and inline with inlet  222  and outlet  221 . Inclination of the pad top surface is indicated by reference  224 , α. The internal cavity of pad  220  reaches a maximum height at the rear of the pad and proximate to outlet  221 , indicated by reference  224 , h. 
       FIG. 2 f    illustrates a top view of the wireless charging pad  220  of  FIG. 2 e   . Pad  220  includes two antennas  223 , two inlet vents  222 , and a single outlet vent  221  spanning approximately the entire width of pad  220 . Pad  220  can include only one antenna  223  or can include more than two antennas. For example, three antennas  223  can be arranged across the width of pad  220  and a corresponding inlets  222  can be positioned along the front edge so that air flows in a line between each inlet  222  and a respective antenna  223 , continuing in a laminar fashion to exhaust outlet  221 . In another embodiment, pad  220  can include more than one exhaust outlet  221 . For example, each antenna  223  can have a corresponding inlet  222  and outlet  221 . In still another embodiment, pad  220  can include multiple antennas  223 , one outlet  221  as shown in  FIG. 2 f   , and a single inlet  222  spanning approximately the entire width of pad  220 , similar to outlet  221 . 
       FIG. 2 g    is a flow diagram illustrating a method  230  for providing passive cooling at a wireless charging pad according to a specific embodiment of the present disclosure. Method  230  begins at block  231  where an enclosure having an inclined top portion is provided. For example, top portion  200   a  of pad  200  is inclined at an angle  204 . The method continues at block  232  where a wireless charging antenna, such as antenna  203 , is provided on an inside surface of the inclined top portion. AT block  233 , an inlet vent is provided at then enclosure, the inlet vent proximate to a bottom of the inclined portion, such as at base portion  200   b . The method completes at block  234  where an outlet vent is provided proximate to the top of the inclined top portion. The charging antenna is located in-line with the inlet vent and the outlet vent, as shown at  FIGS. 2 b , 2 d , and 2 f   . During operation, air within the enclosure is heated by a wireless charging antenna. The air rises to the top of the enclosure, creating a pressure differential between the inlet vent and the exhaust vent, which causes ambient air to flow into the inlet vent and exit at the exhaust vent. The natural draft is maintained without the use of fans or other active cooling components. 
       FIG. 3 a    illustrates a top view of a wireless charging pad  300  having thermal control according to a specific embodiment of the present disclosure. Charging pad may be similar to pads depicted at  FIGS. 2 a -2 f   , or may be of any other configuration, such as a thin flat enclosure having a plastic surface. Pad  300  includes a charging antenna  301  and another charging antenna  302 . Antennas  301  and  302  can be located on an under-surface of pad  300 , molded inside the surface of mat  300 , visible and planar to the top surface, or at another position that facilitates placement of a data processing device to receive wireless power within a suitable range of a corresponding antenna. Pad  300  further includes a distal temperature sensor  303  and a wireless power controller  308 . Pad  300  may optionally include a distal temperature sensor  304  and a distal temperature sensor  305 . Pad  300  may optionally include a proximal temperature sensor  306 , and a proximal temperature sensor  307 . 
     As used herein, the term distal is intended to describe a temperature sensor that is not integrated with an antenna or proximate to an antenna. For example, distal antenna  304  is located approximately midway between antenna  301  and antenna  302 . Distal temperature sensors  303  and  305  are not immediately proximate to an antenna. As used herein, the term proximal is intended to describe a temperature sensor that is in close proximity to an individual antenna, for example immediately adjacent to the antenna coil, integrated with an antenna assembly, and the like. An antenna assembly, such as antennas  301  and  302 , includes an inductor, which typically includes multiple turns of wire arranged in a spiral or a solenoid configuration. The antenna assembly can also include a magnetic shield (not shown) that controls the shape of a magnetic flux field present at the antenna. The magnetic shield can reduce energy loss resulting from the magnetic flux interacting with conductive material in the vicinity of the antenna. 
     By locating distal temperature sensor  304  approximately midway between antenna  301  and antenna  302 , distal sensor  304  is responsive to heat generated by both antenna  301  and antenna  302 , as well as heat generated by a device receiving power from antenna  301  and a device receiving power from antenna  302 . 
       FIG. 3 b    illustrates the wireless charging pad of  FIG. 3 a    including devices receiving wireless power according to a specific embodiment of the present disclosure. At  FIG. 3 b   , a data processing device  310  is placed on the surface of pad  300  approximately over antenna  301 , and another data processing device  311  is placed on the surface of pad  300  approximately over antenna  302 . Device  310  can include a remote temperature sensor  312 , and device  311  can include a remote temperature sensor  313 . As used herein, the term remote is intended to describe an antenna that is not included at a wireless charging pad, but is instead located within a device that is receiving power from the charging pad. Wireless power controller  308  can receive temperature information from the remote temperature sensors using a remote communication system such as Bluetooth, backscatter modulation of a reflected impedance of the receiver device, or another wireless data communications technique. Accordingly, in one embodiment, pad  300  can interdependently regulate charging power at antenna  301  and at antenna  302  based on temperature information provided by a combination of distal, proximate, and remote temperature sensors. 
     In addition, controller  308  can receive operating specifications from data processing devices that are receiving power from pad  300 . For example, data processing device  310  that is being charged by pad  300  may specify that a skin temperature of the device not exceed 43° C. The skin temperature of device  310  can be based on heat generated the device itself, including energy losses at a wireless power receiving antenna included at the device, heat generated at a battery at device  310  that is being charged, and heat generated by circuitry included at device  310 . 
     The skin temperature of device  310  can also depend on heat generated by antenna  301  that is providing power to device  310 , and heat generated at another charging antenna and device. For example, if data processing device  311  is receiving power from pad  300  at the same time that device  310  is receiving power; heat that is associated with the charging of device  311  can propagate through pad  300  and increase the skin temperature of device  310 . This can be especially problematic if device  310  is small and delicate, such as a mobile phone device, while device  311  is large and requires significant power, such as a notebook computer device, and the like. Continuing this example, controller  308  can determine that the skin temperature of device  310  is about to exceed 43° C. Based on temperature information received at controller  308  from distal temperature sensors  304  and/or  305 , and optionally temperature information received from other proximal and remote temperatures sensors, controller  308  can determine that a significant source of the heat at device  310  is the result of supplying power to device  311 . Accordingly, Controller  308  can elect to decrease an amount of power supplied to device  311  until the skin temperature at device  310  is sufficiently reduced. 
       FIG. 3 c    illustrates a top view of a wireless charging pad  320  having thermal control according to another embodiment of the present disclosure. Wireless charging pad  320  includes four charging antennas: antenna  321 , antenna  322 , antenna  323 , and antenna  324 . Pad  320  also includes four distal temperature sensors: sensor  325 , sensor  326 , sensor  327 , and sensor  328 . Pad  320  can also include proximal temperature sensors located at respective antennas (not shown at  FIG. 3 c   ). Different from pad  300 , each of distal temperature sensors  325 - 328  are located approximately midway between adjacent antennas. Operation of pad  320  is similar to that described above with reference to pad  300 , wherein temperature information provided by distal sensors  325 - 328  allow a wireless charging controller (not shown) to determine how each antenna and associated data processing device that is receiving power from pad  320  is contributing heat to various regions and devices presently being charged. Based on this information, the controller can regulate a power transfer rate at each device. While wireless charging pad  320  is shown as being circular in shape, one of skill will appreciate that similar placement of distal temperature sensors can be achieved at a pad having two or more antennas that is rectangular, hexagonal, or another shape. For example, a rectangular charging pad can include three antennas arranged in a row, with a distal antenna located between each pair of adjacent antennas. 
       FIG. 3 d    is a flow diagram illustrating a method  330  for controlling wireless charging according to a specific embodiment of the present disclosure. The method begins at block  331  where a wireless charging pad controller monitors distal temperature sensors. For example, controller  308  can monitor distal temperature sensors  303 ,  304 , and  305  of  FIG. 3 a   . The method continues at block  332  where the controller can monitor temperature sensors included at wireless power antennas, for example proximal temperature sensors  306  and  307 . The method proceeds to block  333  where the controller can monitor temperature sensors included at devices that are being charged, for example data processing devices  310  and  311  of  FIG. 3 b   . The method continues at block  334  where the controller can determine temperature specification information from devices being charged. For example, controller  308  can request maximum skin temperature information from devices  310  and  311  using a wireless communication system. 
     The method completes at block  335  where the wireless power controller can dynamically optimize a charge rate at each device that is being charged based on the collected information. For example, wireless power controller  308  can determine that temperature readings received from distal temperature sensor  305 , and optionally from distal sensor  303  and  304 , proximal sensors  306  and  307 , and remote sensors  312  and  313 , indicate that significant heating at device  310  is due to the charging of device  311 . Controller  308  may further determine that heating at device  310  may soon exceed a maximum skin temperature specification of device  310 . Accordingly, controller  308  can elect to reduce a power transfer to device  311 , thereby reducing heat generated at and near device  311 . 
       FIG. 4 a    illustrates a top view of a wireless power antenna assembly  400  according to a specific embodiment of the present disclosure. Antenna assembly  400 , which can be simply referred to as an antenna, includes an inductor  401  and a magnetic shield  402 . Antenna assembly  400  can be a transmitting antenna, which may be referred to as a source antenna, or assembly  400  can be a receiving antenna, which may be referred to as a target antenna. Inductor  401  is typically a coil of wire. As disclosed herein, magnetic shield  402  includes carbon nanotubes or another carbon or graphite material to increase a thermal conductivity of the magnetic shield. 
     During operation, inductor  401  of a power transmitting antenna is energized by a high frequency signal, which generates a magnetic field around inductor  401 . When an inductor of a receiving antenna is placed within this magnetic field, a current is induced in the receiving coil, and it is this current that can be used to provide power to a data processing device coupled to the receiving coil. There are numerous wireless power standards, having operating frequencies ranging from approximately one hundred kilohertz to greater than six megahertz. Antenna assembly  400 , and magnetic shield  402  in particular, can be made compliant with any wireless power standard. 
     Magnetic shield  402  can be implemented to reduce interference caused by a magnetic field generated by antenna  400  or in the vicinity of antenna  400 , but is also designed to manipulate a shape of a magnetic flux field generated by a wireless power transmitting antenna. A magnetic shield, such as magnetic shield  402 , is typically included at both a transmitting antenna and at a receiving antenna. In particular, magnetic shield  402  is included at a rear surface of a transmitting and at a rear surface of a receiving inductor, such that when a data processing device is placed on a wireless charging pad, the transmitting antenna and the receiving antenna are sandwiched between the magnetic shields. This arrangement causes the magnetic flux lines to be concentrated between the magnetic shields, thereby increasing flux density at the receiving coil and increasing power transfer efficiency. Furthermore, power transfer efficiency is decreased and undesirable heating can occur if the magnetic flux field intersects conductive material, such as metal parts included in the device being charged. Accordingly, magnetic shield  402  reduces an amount of magnetic flux that interacts with other portions of a charging pad or a device being charged. 
     Magnetic shield  402  includes magnetic materials, such as ferrites, which can influence magnetic fields in its environment. Materials such as ferrite have a greater permeability to magnetic fields than the air around them and therefore concentrate the magnetic field lines around the transmitting and the receiving antenna inductors  401 . 
       FIG. 4 b    illustrates a thermally conductive magnetic shield  410  according to specific embodiment of the present disclosure. Magnetic shield  410  includes a single layer of material that includes both magnetic material and carbon material. The carbon material can be carbon nanotubes, graphene, another type of carbon or graphite fiber or powder, and the like. In one embodiment, the carbon material can be chopped into small pieces and mixed with ferrite material. The mixture can be included in a polymer matrix to provide a substantially amorphous material. For example, magnetic shield  410  can include a loading of twenty percent by volume of chopped carbon nanotubes, or a greater or lesser density of carbon. The amount of carbon to include in the mixture can vary based on a degree of thermal conductivity and magnetic shielding that is desired. 
     In another embodiment, longer segments or strands of carbon nanotubes can be placed in a polymer matrix including ferrite material. Carbon nanotubes can provide significantly orthotropic heat transfer characteristics, wherein heat is conducted along a length of the nanotube at a greater rate than perpendicular to long dimension of the nanotubes. For example, the nanotubes can be arranged substantially parallel to a major surface of magnetic shield  410 , which can cause heat to be predominately conducted towards edges of shield  410 . Alternatively, the nanotubes can be arranged to preferentially provide heat conduction perpendicular to the major surfaces of shield. In still another embodiment, nanotube or another carbon material can be arranged within shield  410  to provide substantially omnidirectional heat transfer, such as both parallel and perpendicular to the major surfaces of shield  410 . 
       FIG. 4 c    illustrates a thermally conductive magnetic shield  420  according to another embodiment of the present disclosure. Magnetic shield includes a first layer  421  that is adjacent to a second layer  422 . First layer  421  can be adjacent to inductor  401  and include magnetic material to provide desired magnetic shielding characteristics. Second layer  422  can include carbon material, such as carbon nanotube, graphene, or another graphite material. In one embodiment, layer  421  and be laminated to layer  422  using an adhesive, using heating or pressing, or by another method. Both of layers  421  and  422  can include a polymer binder to which carbon, magnetic material, or both carbon and magnetic material can be added. In another embodiment, magnetic layer  421  can include a sintered ferrite sheet, such as pre-cracked ferrite plates. Magnetic layer  421  and carbon layer  422  can further include two or more laminated layers. In still another embodiment, carbon layer  422  can be a paint-like material that is sprayed or brushed onto magnetic layer  421 , which then is dried or cured. 
     As described above, carbon nanotubes, graphite, or another carbon material can be arranged at layer  422  to provide a desired thermal conductivity characteristic. For example, nanotubes included at layer  422  can be arrange with their long axis parallel with the major surfaces of layer  422 , thereby accentuating thermal conduction towards the edges of layer  422 . The nanotubes can be laid substantially parallel to each other, or can be arranged orthogonally or diagonally relative to each other to promote heat transfer in two or more directions parallel with the major surface of shield  420 . Alternatively, carbon can be arranged at layer  422  to promote heat transfer perpendicular to the major surfaces, including away from inductor  401 . Layer  422  can be attached to a chassis that acts as a heat sink to dissipate heat conducted away from the inductor surface of antenna assembly  400  by layer  422 . For example, layer  422  can attached to, and benefit from, a heat sink or thermal dissipation solution provided by the data processing device that is receiving power via antenna assembly  400 . 
       FIG. 5 a    is a block diagram illustrating a wireless power system  500  including an antenna utilizing a heat pipe according to a specific embodiment of the present disclosure. System  500  includes an inductor implemented using a heat pipe  501 , a heat sink  502 , a tank capacitor  503 , and a wireless power driver/receiver  504 . System  500  can be a wireless power transmitter that is providing wireless power, or a wireless power receiver included at a data processing device that is receiving power from a wireless power transmission device. The inductor and tank capacitor together provide a resonant tank circuit. One of skill will appreciate that system  500  illustrates a simple inductor-capacitor (LC) tank circuit, and that a wireless power transmitter or receiver can utilize another circuit topology without departing from the scope of the present disclosure. 
     Wireless power system  500 , and the inductor formed by heat pipe  501  in particular, can be implemented to operate at a desired frequency. The operating frequency is based on a number of turns of the inductor coil, the value of tank capacitor  503 , and other circuit parameters. For example, wireless power system  500  can be configured to operate according to an inductive wireless power standard having a frequency of approximately one hundred kilohertz, according to resonant wireless power standards having a frequency greater than one megahertz, or according to another wireless power standard. 
     Heat pipe  501  is an electrically conductive tube that is fabricated into a helical or cylindrical spiral including at least one complete turn to provide a coil that functions electrically as an inductor. The coil can include additional turns, and a number of turns and dimensions of the coil can be selected based on a desired inductance and a desired resonant frequency realized by the inductance and the value of capacitor  503 . Heat pipe  501  can include a metal tube that is partially evacuated of air, and to which a material that can undergo a phase liquid-gas phase change at a desired range of operating temperatures. For example, heat pipe  501  can include a copper tube containing a mixture of air/water vapor and water. Another metal and liquid can be selected based on the temperature of heat pipe  501  during operation. In one embodiment, the diameter of the metal tube can be one millimeter or less. The inductor can be attached to a magnetic shield, such as magnetic shield  402  at  FIG. 4   a.    
     During operation of system  500 , inefficiencies in power transmission and heat from a device that is being charged can increase the temperature of the antenna. A liquid inside heat pipe  501  is vaporized by the heat and the vapor travels to heat sink  502  where the vapor condenses back to a liquid state. Heat sink  502  can include a passive or an active cooling device, such as metal chassis, a fluid to fluid heat exchanger, and the like. In one embodiment a wicking material can be incorporated on an inside surface of heat pipe  501  tubing. The condensed liquid can travel from heat sink  502  to the inductor coil by a capillary action provided by the wicking material. In another embodiment, a wicking structure is not used, and an orientation of the heat pipe is such that gravitational force is used to pump the liquid back to the evaporative region. This embodiment may be referred to as a thermosiphon. During operation, the process of evaporation and condensation is repeated as long as the temperature at the antenna is elevated relative to the temperature at heat sink  502 . One of skill will appreciate that while a particular heat pipe construction is described, any type of heat pipe including an electrically conductive material can be used to fabricate a wireless power antenna inductor. 
       FIG. 5 b    is a block diagram illustrating a wireless power system  510  including an antenna utilizing a heat pipe according to another embodiment of the present disclosure. System  510  includes a wireless power antenna including a heat pipe  511  connected in series with a wire  512 . System  510  further includes a heat sink  513 , a tank capacitor  514 , and a driver/receiver  515 . Operation of wireless power system  510  is similar to system  500  of  FIG. 5 a   , however the inductance of the antenna coil is determined based on a number of turns of heat pipe  511  and the number of turns of wire  512 . Operation of system  510  is the same as described above with reference to system  500 . 
       FIG. 5 c    is a block diagram illustrating a wireless power system  520  including an antenna utilizing a heat pipe according to still another embodiment of the present disclosure. System  520  includes a heat pipe  521  arranged in a loop configuration, a heat sink  522 , an electrical insulator  523 , a tank capacitor  524 , and a driver/receiver  525 . Operation of system  520  is similar to system  500  described above. Insulator  523  is necessary so that the inductor provided by the coiled portion of heat pipe  521  is not electrically shorted. Insulator  523  can be a material such as plastic, ceramic, glass, or another material that is an electrical insulator and that can be formed and sealed to heat pipe allow the liquid and vapor inside heat pipe  521  to circulate throughout the length of the heat pipe loop. 
     In one embodiment, heat sinks  502 ,  513 , and  522  can include carbon nanotubes arranged to conduct heat away from a condensation portion of the heat pipe. For example, a condensation portion of the heat pipe can be thermally coupled to a magnetic shield that includes carbon nanotubes, graphite, or another carbon material selected to provide thermal conductivity. Alternatively, or in addition, carbon nanotubes can be used to couple heat from the condensation portion of a heat pipe to a metal chassis or another component capable of radiating or dissipating heat. For example, a charging pad incorporating wireless power system  500 ,  510 , or  520  can include a metal or carbon-containing enclosure to radiate heat conducted from the inductor heat pipe by carbon nanotubes. Similarly, wireless power system  500 ,  510 , or  520  can be wireless power receivers included at a data processing device, and carbon nanotubes can be included in the enclosure housing the device to dissipate heat away from the condensation portion of the included heat pipe. 
       FIG. 6 a    shows a wireless power delivery system  600  according to an embodiment of the present disclosure. The wireless power delivery system  600  includes a wireless charging pad  602 , an information handling system  604 , and a plurality of direct current (DC) sources  605 . The wireless charging pad  602  includes a landing pad  607 , which in turn includes a wireless power source  630 , and an antenna  612 . The wireless power source  630  is in communication with the DC sources  605  and with the antenna  612 . 
     The information handling system  604  includes a battery  640 , voltage regulators  642 , a host/embedded controller (EC) control module  644 , bulk capacitors  646 , power cache capacitors  648 , switches  650  and  652 , central processing unit  656 , and a wireless charging module  660 . The control module  644  is in communication with the voltage regulators  642 , with the bulk capacitors  646 , with the peak power cache capacitors  648  via communication bus  659 , and with the switches  650  and  652 . The switch  650  includes a first terminal coupled to the wireless charging module  660 , and a second terminal coupled to the peak power cache capacitors  648 . The switch  652  includes a first terminal coupled to the peak power cache capacitors  648  and a second terminal coupled to the voltage regulators  642 , which in turn is coupled to the central processing unit  656  and other components of the information handling system  604 . 
     The wireless charging module  660  includes an antenna  616 , a battery  662 , and a wireless charger  664 . The antenna  616  is in communication with the wireless charger  664 , which in turn is in communication with the control module  644  via the communication bus  657 . The wireless charger  664  is also in communication with the battery  662 , with the battery  640 , and with the bulk capacitors  646  via the power connector  658 . In an embodiment, the power connector  658  can be a system management bus, and the power connector can also include low power pins to provide power to logic components in the wireless charging module  660 . 
     The voltage regulators  642  can provide multiple regulated voltages to different systems loads of the information handling system  604 , such as the central processing unit  656 , a memory, a display device, and the like. The control module  644  can be a hardware module, a software module, and/or any combination of a hardware and software module. For example, the control module  614  can be a power management integrated circuit, a power management unit, or the like. The plurality of DC sources  605  can include an automatic air source, an alternating current (AC)-to-DC source, and a universal serial bus (USB) power source, or the like. 
     In an embodiment, the wireless charger  664  can communicate with the control module  644  of the information handling system to provide information about the wireless charging module. For example, information can include a class of the wireless charging module  660 , an amount of power that the wireless charging module can provide, a type of the wireless charging module, and the like. 
     When the information handling system  604  containing the wireless charging module  660  is placed on landing pad  607  of the wireless charging pad  602 , the wireless power source  630  can provide power to the antenna  612 , which in turn can wirelessly provide the power to the antenna  616  of the wireless charging module  660 . In an embodiment, the antenna  616  can receive a magnetic flux field from the antenna  612  and this magnetic flux field can induce power to be received by the wireless charger  664 . The wireless charging pad  602  can use one or more techniques to provide power wirelessly, including inductive techniques, resonant inductive techniques, capacitive transfer techniques, beamed power transfer, such as laser or microwave transfer, or the like. 
     The antenna  616  can receive the wireless power from the antenna  612 , and can provide power to the wireless charger  664 . The wireless charger  664  can then convert the power received from the antenna  616  to a power level and a voltage level that can be utilized by the information handling system  604 , such as forty-five or sixty-five Watts and nineteen and a half volts. The wireless charger  664  can either supply the converted power to the battery  640 , the peak power cache capacitors  648 , or the voltage regulators  642 . In an embodiment, the bulk capacitors  646  buffer the power provided by the wireless charging module  660  on the power connector  658  before the power is provided to the voltage regulators  642 . 
     The power provided to the battery  640  can be used to charge the battery, the power provided to the peak power cache capacitors  648  can be used to charge the capacitors, and the power provided to the voltage regulators  642  can be supplied at a proper voltage to the remaining components of the information handling system  604 . If the battery  640  is fully charged and the information handling system  604  does not require the entire amount of power received by the wireless charging module  660  from the wireless charging pad  602 , the wireless charger  664  can provide the remaining power to the battery  662 . The power provided to the battery  662  can be used to charge the battery or to provide power to the peak power cache capacitors  648 . 
     The control module  644  can receive information about the power provided by the wireless charging pad  602  from the wireless charger  664 . The information can include a total amount of power that the wireless charging pad is able to provide or the like. The control module  644  can also determine information about the information handling system  604 , such as a percentage of the battery  640  that is charged, an operation mode of the information handling system, and the like. 
     In an embodiment, the control module  644  can receive a turbo mode request to operate the central processing unit  656  in a turbo mode. The control module  644  can then determine if the peak power cache capacitors  648  have sufficient stored energy to provide the power to operate the central processing unit  656  in a turbo mode. If the peak power cache capacitors  648  do not have the amount of power for the turbo mode, the control module  644  can determine whether the wireless charging module  660  has sufficient power delivery capability to charge the peak power cache capacitors  648 . In an embodiment, the power delivery capability of the wireless charging module  660  can be determined based on the power delivery capability of the wireless charger  664 , the power delivery capability of battery  662 , the combined power delivery capability of both the wireless charger and the battery, or the like. 
     The control module  644  can determine whether the wireless charging module  660  has sufficient power delivery capability by comparing the power delivery capability of the wireless charging module to a threshold value. In an embodiment, the threshold value can be the amount of power delivery capability needed to charge the peak power cache capacitors  648 . If the control module  644  determines that the power delivery capability of the wireless charging module  660  is less than a threshold amount needed to charge the peak power cache capacitors  648 , the control module can deny the turbo mode request. However, if the control module  644  determines that the power delivery capability of the wireless charging module  660  is substantially equal to or greater than threshold amount needed to charge the peak power cache capacitors  648 , the control module can enable the turbo mode, and close switch  650  to enable the wireless charging module to provide power to the peak power cache capacitors. 
     In an embodiment, the voltage of the peak power cache capacitors  648  should be substantially equal to the voltage of the bulk capacitors  646  before the peak power cache capacitors discharge the stored energy and provide the energy to the voltage regulators  642 . The control module  644  can compare the voltage of the peak power cache capacitors  648  to the voltage of the bulk capacitors  646 . The control module  644  can then determine that the peak power cache capacitors  648  are ready to provide power to the voltage regulators  642  and can open switch  650  in response to the voltage of the peak power cache capacitors matching the voltage of the bulk capacitors  646 . In an embodiment, the power provided to the central processing unit  656  and other components of the information handling system  604  is power delivered cycles. In an embodiment, the power from the peak power cache capacitors  648  should be provided at the start of a power delivery cycle. Thus, the control module  644  can monitor the voltage regulators  642  to detect a start of a power delivery cycle. 
     The control module  644  can then close switch  652  in response to the control module enabling the turbo mode, determining that the wireless charging module  660  has sufficient power delivery capability, determining that the voltage in the peak power cache capacitors  648  match the voltage of the bulk capacitors  646 , and detecting a start of the power delivery cycle. The peak power cache capacitors  648  can then rapidly provide all of the energy stored in the peak power cache capacitors to the voltage regulators  642 . In an embodiment, the peak power cache capacitors  648  can provide all of the energy in ten milliseconds, eleven milliseconds, twelve milliseconds, or the like. The control module  644  can then disable the turbo mode at the end of the power delivery cycle that the power was provided from the peak power cache capacitors  648  to the voltage regulators  642 . In an embodiment, the control module  644  will deny all turbo mode requests received during the power delivery cycle immediately subsequent to the discharge of the peak power cache capacitors  648 . 
       FIG. 6 b    shows a method  670  for caching peak power in an information handling system via a wireless charging module according to an embodiment of the present disclosure. At block  672 , wireless power is received at an antenna of a wireless charging module of the information handling system from an antenna of a wireless charging pad. Power is provided to the central processing unit of the information handling system at block  674 . In an embodiment, the power is provided by a wireless charger of the wireless charging module. At block  676 , a turbo mode request is received. In an embodiment, the turbo mode can be received at a control module of the information handling system, and the request can be to operate a central processing unit of the information handling system in a turbo mode. 
     A determination is made whether the power delivery capability of the wireless charging module is above a threshold at block  678 . At block  680 , if the power delivery capability of the wireless charging module is above the threshold, the wireless charging module is determined to have sufficient power delivery capability to enable a turbo mode of the information handling system. Otherwise, if the power delivery capability of the wireless charging module is above the threshold, the turbo mode request is denied at block  682 . 
     At block  684 , power is provided to a capacitor in response to receiving the turbo mode request and determining that the wireless charging module has sufficient power delivery capability. In an embodiment, the capacitor can be a peak power cache capacitor. In an embodiment, the power is provided to the capacitor from the wireless charger of the wireless charging module. In an embodiment, the power is provided to the capacitor from a battery of the wireless charging module. At block  686 , a determination is made whether a first voltage of the capacitor is substantially equal to a second voltage of a second capacitor in the information handling system. In an embodiment, the second capacitor can be a bulk capacitor providing power to voltage regulators of the information handling system. After the first voltage of the capacitor is substantially equal to the second voltage of the second capacitor in the information handling system, a start of a power delivery cycle is detected at block  688 . At block  690 , power for the turbo mode is provide from the capacitor in response to the first voltage being substantially equal to the second voltage. A turbo mode is disabled in response to an end of a power delivery cycle subsequent to the power being delivered from the capacitor at block  692 . 
       FIGS. 7 a  and 7 b    show a cart  700  for wirelessly recharging mobile computing devices  702 . The cart  700  includes wheels  704 , one or more handles  706 , and a plurality of slots  708  that are configured to receive the mobile computing devices. In the embodiment shown in  FIG. 7 b   , the slots may have a variety of configurations, each of which results in the mobile computing device  702  extending at least partially from its respective slot. For example, the bottom of the slot may have a ridge  710 . The ridge  710  may be hinged such that it extends to lay generally flat, as shown in the middle slot of  FIG. 7 b   , or the ridge may be rigid so as to deflect the mobile computing device  702  toward one side of the slot  708 . 
     The resilience of the ridge(s)  710  are preferably chosen in order to bring transmit coils  712  embedded in the cart into opposition with receive coils  714  in the mobile computing device  702 . Because each mobile computing device  702  is normally equipped with only a single, asymmetrically disposed receive coil  714 , the wireless power management system of the cart  700  may recognize which of the two coils  712  provided in each slot is closer to the receive coil  714 . When that determination has been made, then the system may energize only the transmit coil better situated to deliver wireless power, which is normally the closer transmit coil. 
       FIG. 7 c    shows an alternative embodiment  750  of the wireless recharging cart. In this embodiment, the slots  708  may have a depth to accept full insertion of the mobile computing device  702  such that the device does not extend above the top of the slots. Depending on the orientation of the device  702  upon insertion, the receive coil  714  may be disposed more proximate to the transmit coil  712  on the right side of the slot as shown in  FIG. 7 c   . The device  702  and the slot  708  may also be provided with complimentary peripheries that require a single registration, and thus accommodate only a single correct method of insertion. In this latter case, each slot  708  need only be provided with a single corresponding transmit coil  712 . 
     In either of the embodiments shown in  FIG. 7 b    or  7   c , the plates  760  situated between the slots are preferably plastic, and impregnated with iron or provided with iron inserts sufficient to magnetically isolate the transmit coils on each plate. At least one feature of such a design is to allow any given plate to generate bidirectional charging. The cart may thus charge mobile computing devices in adjacent slots. In the alternative the cart may selectively charge fewer than all slots. For example, the management system of the cart may determine to charge only three of ten filled slots. 
     The cart  700  or  705  may be connected to a network, such as a local area network or a cellular network, either by wire or wirelessly. The slots  708  of either  FIG. 7 b    or  7   c  in turn may be provided with wired Ethernet connections (not shown) that mate with corresponding Ethernet ports on the mobile computing devices. Alternatively the cart  700  or  705  may be provided with a wireless access point. Any of these configurations allow for network management of the mobile computing devices, such as the provision of software updates. 
       FIG. 8  is a diagram illustrating a wireless power delivery system  800  according to an embodiment of the present disclosure. The wireless power delivery system  800  includes a wireless charging pad  802  and a device securing component  830 . The wireless power delivery system  800  can be placed in physical communication with a surface  801 , such as a table top or counter top, and can be located within close proximity with a wall  803 . In an embodiment, an information handling system  804  can be placed in physical communication with the wireless charging pad  802 , and the information handling system can then be wirelessly charged by the wireless charging pad as described above with respect to  FIG. 1 . The device securing component  830  can include a tray  832 , a lid  834 , one or more security ties  836 , and one or more notches  837  in the tray. Each of the security ties  836  includes a locking mechanism  838 . A mounting plate  840  can be securely attached to the wall  803 , and the mounting plate can include a power outlet  842  and a mount  844 . In different embodiments, the mounting plate  840  may include the power outlet  842 , as shown in  FIG. 8 , or the mounting plate may be separate from the power outlet on the wall  803 . In an embodiment, a security tie  846  includes a locking mechanism  848  can be connected to the mounting plate via the mount  844 . In an embodiment, the security ties  836  and  846  can be made from any durable material that is not easily broken or cut, such as Kevlar, steel strand cable, or the like. 
     During operation of the wireless power delivery system  800 , the power outlet  842  can provide power to the wireless charging pad  802  via a power cord  850 . A wireless charging antenna of the information handling system  804  can be aligned with a wireless charging antenna of the charging pad  802  to enable the information handling system to be wirelessly charged by the charging pad as described above with respect to  FIG. 1 . The charging pad  802  may be placed or located in an area that a lot of individuals have access to, such as a common area in an office building, a business, or the like. In an embodiment, a business can provide the wireless charging pad  802  for the use of customers of that business, so that the customers can charge their devices while shopping in the business. In this situation, the business providing the wireless charging pad  802  may want to secure the wireless charging pad via the security tie  846  so that an individual or customer cannot steal the charging pad. 
     In an embodiment, the security tie  846  can be integrated within the mounting plate  840 , such that the security tie is permanently and securely connected to and part of the mounting plate. In another embodiment, the security tie  846  can be securely connected to the mounting plate  840  via the mount  844 . In an embodiment, the mount  844  may be a lock that can be opened and closed using a key, a combination entered into the lock, or the like. The security tie  846  can extend from the mounting plate  840  and can attach to the charging pad  802  via the locking mechanism  848 . In another embodiment, the security tie  846  can be permanently connected to the charging pad  802  without the use of the locking mechanism  848 . Thus, the security tie  846  can securely connect the charging pad  802  to the mounting plate  840 , such that an individual cannot move the charging pad more than a particular distance from the mounting plate as defined by the length of the security tie. 
     The device securing component  830  is securely connected to the charging pad  802 . In different embodiments, the device securing component  830  can extend an entire length of a side of the charging pad  802 , extend along only a portion of the length of a side of the charging pad, extend over the length of a side of the charging pad, extend along multiple sides of the charging pad, or the like. In an embodiment, the size, such as length, width, and height, of the device securing component  830  can be selected to fit different numbers of security ties  836  within the tray  832  and to allow the lid  834  to completely close on top of the tray while all of the security ties are within the tray. For example, if the charging pad  802  includes a single charging antenna, such that only one device can be wirelessly charged on the charging pad at a time, the dimensions of the tray  832  can be selected to fit only a single security tie  836  within the tray. However, if the charging pad  802  includes multiple charging antennas, the dimensions of the tray  832  can be selected to fit the same number of security ties  836  as the number of charging antennas within the tray. In an embodiment, the dimensions of the tray  832  may be selected to hold a larger number of security ties  836  than the number of charging antennas, a smaller number of security ties than the number of charging antennas, or the same number of security ties than the number of charging antennas. 
     If an individual would like to have an information handling system or device securely charged, the individual can place the information handling system  804  on the charging pad  802 , and can then retrieve a security tie  836  out of the tray  832  of the device securing component  830 . The information handling system  804  can include a locking mechanism  860  that is capable of interfacing with and connecting with the locking mechanism  838  of the security tie  836 . In different embodiments, the locking mechanism  838  can be a key lock, a combination lock, or the like. For example, the locking mechanism  838  can be designed such that a key can rotate the locking mechanism between an unlocked position and a locked position, and the key can only be removed from the locking mechanism when the locking mechanism is in the locked position. In this embodiment, each locking mechanism  838  of the security ties  836  can have a different key, and only the specific key for a locking mechanism can unlock that particular locking mechanism. Thus, the individual can connect the information handling system  804  to the security tie  836  by connecting the locking mechanisms  838  and  860 , and can then lock the locking mechanisms  838  and  860  together so that the information handling system is securely connected to the charging pad  802 . If the locking and unlocking of the locking mechanism  838  is controlled via a key, the individual can then remove and take the key with him or her after the locking mechanism is locked so that only that individual can unlock and remove the information handling system  804  from the charging pad  802 . 
     While the security tie  836  is connected to the information handling system  804 , the security tie can be placed within a notch  837  of the tray  832 . In an embodiment, each of the notches  837  can be shaped to fit the entire cross section of a security tie  836  so that the lid  834  can be completely closed on the tray  832  and the security tie can remain extended from the tray. If the individual decides to remove the information handling system  804  from the charging pad  802 , the individual can unlock the locking mechanism  838  from the locking mechanism  860 , and place the security tie  836  back within the tray  832 . 
       FIG. 9  is a diagram illustrating a wireless power delivery system  900  according to an embodiment of the present disclosure. The wireless power delivery system  900  includes a wireless charging pad  902  and a device securing component  930 . In an embodiment, information handling systems  904  and  906  can be placed in physical communication with the wireless charging pad  902 , and the information handling systems can then be wirelessly charged by the wireless charging pad as described above with respect to  FIG. 1 . The device securing component  930  can include a tray  932 , a lid  934 , a security tie  936 , and a notch  937  in the tray. In an embodiment, the security tie  936  includes one or more locking mechanisms  938 . In an embodiment, a security tie  946  includes a locking mechanism  948  can be connected to a mounting plate, such as the mounting plate  840  of  FIG. 8 , via a mount as described above with respect to  FIG. 8 . In an embodiment, the security ties  936  and  946  can be made from any durable material that is not easily broken or cut, such as Kevlar, steel strand cable, or the like. 
     During operation of the wireless power delivery system  900 , a wireless charging antenna of the information handling system  904  can be aligned with a wireless charging antenna of the charging pad  902 , and a wireless charging antenna of the information handling system  906  can be aligned with another wireless charging antenna of the charging pad to enable both of the information handling systems to be wirelessly charged by the charging pad as described above with respect to  FIG. 1 . The charging pad  902  may be placed or located in an area that a lot of individuals have access to, such as a common area in an office building, a business, or the like. In this situation, the business providing the wireless charging pad  902  may want to secure the wireless charging pad via the security tie  946 , as described above with respect to  FIG. 8 , so that an individual or customers cannot steal the charging pad. 
     The device securing component  930  can be securely connected to the charging pad  902 . In an embodiment, the dimensions of the device securing component  930  can be selected based on the size and number of security ties  936  within the tray  932  and to allow the lid  934  to completely close on top of the tray while the security ties are within the tray. If an individual would like to have an information handling system or device securely charged, the individual can place the information handling system  904  on the charging pad  902 , and can then retrieve the security tie  936  out of the tray  932  of the device securing component  930 . In an embodiment, the security tie  936  can include multiple locking mechanisms  938  and  939  that are connected together, such as in a daisy chain configuration. In this embodiment, the security tie  936  can include a first locking mechanism  938  a predefined distance along the security tie, and the security tie can continue in length to another locking mechanism  939 , such that both information handling systems  904  and  906  can be securely connected to the charging pad  902  via a single security tie. 
     The information handling system  904  can include a locking mechanism  960  that is capable of interfacing with and connecting with either the locking mechanism  938  or  939  of the security tie  936 . Similarly, the information handling system  906  can include a locking mechanism  970  that is capable of interfacing with and connecting with either the locking mechanism  938  or  939  of the security tie  936 . In an embodiment, the locking mechanism  938  can be designed such that a key can rotate the locking mechanism between an unlock position and a locked position, and the key can only be removed from the locking mechanism when the locking mechanism is in the locked position. In this situation, the individual can connect the information handling system  904  to the security tie  936  by connecting the locking mechanism  938  of the security tie to the locking mechanism  960  of the information handling system. The individual can then lock the locking mechanisms  938  and  960  together so that the information handling system  904  is securely connected to the charging pad  902 . 
     The information handling system  906  can then be connected to the security tie  936  by connecting the locking mechanism  939  of the security tie to the locking mechanism  970  of the information handling system. The individual can then lock the locking mechanisms  939  and  970  together so that the information handling system  906  is securely connected to the charging pad  902 . While the security tie  936  is connected to the information handling system  904  and/or information handling system  906 , the security tie can be placed within a notch  937  of the tray  932  so that the lid  934  can be completely closed on the tray and the security cable can remain extended from the tray. 
       FIG. 10  is a diagram illustrating a wireless power delivery system  1000  according to an embodiment of the present disclosure. The wireless power delivery system  1000  includes a wireless charging pad  1002  and device securing components  1080  and  1082 . In an embodiment, information handling system  1004  can be placed in physical communication with the wireless charging pad  1002 , and the information handling system can then be wirelessly charged by the wireless charging pad as described above with respect to  FIG. 1 . The device securing component  1080  can include a security tie  1036  that can retractably extend from the device securing component. For example, the security tie  1036  can be pulled out of the device securing component  1080  and can be locked and held place in response to the security tie no longer being pulled. However, upon the security tie  1036  being fully extended from the device securing component  1080  and an individual pulling an additional amount on the security tie, the device securing component can retract the security tie. 
     During operation of the wireless power delivery system  1000 , a wireless charging antenna of the information handling system  1004  can be aligned with a wireless charging antenna of the charging pad  1002  to enable the information handling system to be wirelessly charged by the charging pad as described above with respect to  FIG. 1 . In an embodiment, the device securing components  1080  and  1082  can be securely connected to the charging pad  1002 . If an individual would like to have an information handling system or device securely charged, the individual can place the information handling system  1004  on the charging pad  1002 , and can then pull on the security tie  1036  to extend the security tie out of the device securing component  1080 . 
     The information handling system  1004  can include a locking mechanism  1060  that is capable of interfacing with and connecting with either the locking mechanism  1038  of the security tie  1036  or locking mechanism  1039  of the security tie  1037 . In an embodiment, the locking mechanisms  1038  and  1039  can be designed such that a key can rotate the locking mechanism between an unlock position and a locked position, and the key can only be removed from the locking mechanism when the locking mechanism is in the locked position. In this situation, the individual can connect the information handling system  1004  to the security tie  1036  by connecting the locking mechanism  1038  of the security tie to the locking mechanism  1060  of the information handling system. The individual can then lock the locking mechanisms  1038  and  1060  together so that the information handling system  1004  is securely connected to the charging pad  1002 . In an embodiment, the embodiment of the wireless power delivery system  1000  of  FIG. 10  can be implemented and utilized with the embodiment of the wireless power delivery system  800  of  FIG. 8  and/or the embodiment of the wireless power delivery  900  of  FIG. 9 , such that the wireless delivery system can include a device securing component  830  or  930  including a tray and cover, and one or more device securing components  1080  and  1082  with retractable security ties. 
       FIGS. 11 a  and 11 b    are two diagrams illustrating a wireless power delivery system  1100  according to an embodiment of the present disclosure. The wireless power delivery system  1100  includes a wireless charging pad  1102  and a pad covering device  1110 . In an embodiment, an information handling system  1104  can be placed in physical communication with the wireless charging pad  1102 , and the information handling system can then be wirelessly charged by the wireless charging pad as described above with respect to  FIG. 1 . In an embodiment, the wireless charging pad  1102  can be securely connected to a wall or other structure via a security tie as described above with  FIGS. 8, 9, and 10 . 
     The pad covering device  1110  includes a rear portion  1112 , side portions  1114  and  1116 , and a channel  1118 . In an embodiment, a cover  1120  can be located within the rear portion  1112 , and the cover can extend from the rear portion and move along the channel  1118 . The cover  1120  includes a locking mechanism  1125 , which in turn can connect and lock within a locking mechanism  1130  of the wireless charging pad  1102 . In an embodiment, the cover  1120  can be made from any durable material that is not easily broken or cut, such as Kevlar or the like. In an embodiment, the cover  1120  can be opaque, such that when the cover is closed over the charging pad  1102  the information handling system  1104  cannot be seen by an individual near the charging pad. 
     During operation of the wireless power delivery system  1100 , a wireless charging antenna of the information handling system  1104  can be aligned with a wireless charging antenna of the charging pad  1102  to enable the information handling system to be wirelessly charged by the charging pad as described above with respect to  FIG. 1 . In an embodiment, the information handling system  1104  can be placed on the wireless charging pad  1102  while the cover  1120  is located within the rear portion  1112  of the pad covering device  1110  as shown in  FIG. 11 a   . However, the charging pad  1102  may be placed or located in an area that a lot of individuals have access to, such as a common area in an office building, a business, or the like. In this situation, an individual may want to securely cover the information handling system  1104  while the information handling system is wirelessly charging on wireless charging pad  1102 . 
     The pad covering device  1110  is securely connected to the charging pad  1102 . In an embodiment, the rear portion  1112  can extend an entire length of one side of the charging pad  1102 , the side portion  1114  can extend along an entire length of another side of the charging pad, and the side portion  1116  can extend along an entire length of still another side of the charging pad. In an embodiment, the size, such as length, width, and height, of the pad covering device  1110  can be selected to fit the entire amount of the cover  1120  while the cover is rolled around a roller  1122 , and the roller can be mounted within the rear portion  1112  via pins  1124  and  1126 . In an embodiment, the pins  1124  and  1126  can enable the roller  1122  to rotate within the rear portion  1112  of the pad covering device  1110 , and to enable the cover to extend from within the rear portion. 
     Referring now to  FIG. 11 b   , as the cover  1120  extends from within the rear portion  1112 , the cover can slide along within the channel  1118  until the cover is fully extended and the locking mechanism  1125  of the cover can connect with the locking mechanism  1130  of the charging pad. In different embodiments, the locking mechanisms  1125  and  1130  can be key locks, combination locks, or the like. For example, the locking mechanism  1125  can be designed such that after the locking mechanism  1125  is connected to the locking mechanism  1130  a key can rotate the locking mechanism from an unlocked position to a locked position. Thus, the individual can securely lock the information handling system  1104  within the wireless power delivery system  1100  by connecting the locking mechanisms  1125  and  1130 , and then locking the locking mechanisms together so that the information handling system is securely held below the cover  1120 . In an embodiment, the cover  1120  can both securely hold the information handling system  1104  on the charging pad  1102  and obstruct the view of the information handling system from other individuals. If the individual decides to remove the information handling system  1104  from the charging pad  1102 , the individual can unlock the locking mechanism  1125  from the locking mechanism  1130 , and allow roller  1122  to rotate and pull the cover  1120  back within the rear portion  1112  of the pad covering device  1110  along the channel  1118  of the side portions  1114  and  1116 . 
       FIGS. 11 c  and 11 d    are two diagrams illustrating a wireless power delivery system  1100  according to an embodiment of the present disclosure. The wireless power delivery system  1100  includes a wireless charging pad  1102  and a pad covering device  1110 . In an embodiment, an information handling system  1104  can be placed in physical communication with the wireless charging pad  1102 , and the information handling system can then be wirelessly charged by the wireless charging pad as described above with respect to  FIG. 1 . In an embodiment, the wireless charging pad  1102  can be securely connected to a wall or other structure via a security tie as described above with  FIGS. 8, 9, and 10 . 
     The pad covering device  1110  includes a rear portion  1112  and a channel  1118 . In an embodiment, a cover  1120  can be located within the rear portion  1112 , and the cover can extend from the rear portion via the channel  1118 . The cover  1120  includes a locking mechanism  1125 , which in turn can connect and lock within a locking mechanism  1130  of the wireless charging pad  1102 . In an embodiment, the cover  1120  can be made from any durable material that is not easily broken or cut, such as Kevlar or the like, and the cover can be opaque, such that when the cover is closed over the charging pad  1102  the information handling system  1104  cannot be seen by an individual near the charging pad. 
     During operation of the wireless power delivery system  1100 , the information handling system  1104  can be placed on the wireless charging pad  1102  while the cover  1120  is located within the rear portion  1112  of the pad covering device  1110  as shown in  FIG. 11 c   . In an embodiment, the pad covering device  1110  is securely connected to the charging pad  1102 . In an embodiment, the rear portion  1112  can extend an entire length of one side of the charging pad  1102 . In an embodiment, the size, such as length, width, and height, of the pad covering device  1110  can be selected to fit the entire amount of the cover  1120  while the cover is rolled around a roller, such as roller  1122  of  FIGS. 11 a    and  11   b.    
     Referring now to  FIG. 11 d   , the cover  1120  can extend from within the rear portion  1112  via the channel  1118  until the cover is fully extended and the locking mechanism  1125  of the cover can connect with the locking mechanism  1130  of the charging pad. In different embodiments, the locking mechanisms  1125  and  1130  can be key locks, combination locks, or the like. An individual can securely lock the information handling system  1104  within the wireless power delivery system  1100  by connecting the locking mechanisms  1125  and  1130 , and then locking the locking mechanisms together, via either a key or combination, so that the information handling system is securely held below the cover  1120 . In an embodiment, the cover  1120  can both securely hold the information handling system  1104  on the charging pad  1102  and obstruct the view of the information handling system from other individuals. If the individual decides to remove the information handling system  1104  from the charging pad  1102 , the individual can unlock the locking mechanism  1125  from the locking mechanism  1130 , and allow roller  1122  to rotate and pull the cover  1120  back within the rear portion  1112  of the pad covering device  1110  via the channel  1118 . 
       FIGS. 12 a  and 12 b    are two diagrams illustrating a wireless power delivery system  1200  according to an embodiment of the present disclosure. The wireless power delivery system  1200  includes a wireless charging pad  1202  and a pad covering device  1210 . In an embodiment, an information handling system  1204  can be placed in physical communication with the wireless charging pad  1202 , and the information handling system can then be wirelessly charged by the wireless charging pad as described above with respect to  FIG. 1 . In an embodiment, the wireless charging pad  1202  can be securely connected to a wall or other structure via a security tie as described above with  FIGS. 8, 9, and 10 . 
     The pad covering device  1210  includes a rear portion  1212 , a cover  1220 , a front portion  1221 , a hinge  1223 , and a locking mechanism  1225 . In an embodiment, the cover  1220  can connect to the rear portion  1212  via the hinge  1223 . In an embodiment, the locking mechanism  1225  can connect and lock within a locking mechanism  1230  of the wireless charging pad  1202 . In an embodiment, the cover  1220  can be made from any durable material that is not easily broken or cut, such as Kevlar, hard plastic, or the like, and the cover can be opaque, such that when the cover is closed over the charging pad  1202  the information handling system  12204  cannot be seen by an individual near the charging pad. 
     During operation of the wireless power delivery system  1200 , the information handling system  1204  can be placed on the wireless charging pad  1202  while the cover  1220  is located behind the charging pad, as shown in  FIG. 12 a   , or off to one side or the other. In an embodiment, the rear portion  1212  of the pad covering device  1210  is securely connected to the charging pad  1202 . In an embodiment, the rear portion  1212  can extend an entire length of one side of the charging pad  1202 . 
     Referring now to  FIG. 12 b   , the cover  1220  can rotate around the rear portion  1212  via the hinge  1223  until the locking mechanism  1225  of the cover can connect with the locking mechanism  1230  of the charging pad. In different embodiments, the locking mechanisms  1225  and  1230  can be key locks, combination locks, or the like. Thus, an individual can securely lock the information handling system  1204  within the wireless power delivery system  1200  by connecting the locking mechanisms  1225  and  1230 , and then locking the locking mechanisms together, via either a key or combination, so that the information handling system is securely held below the cover  1220 . In an embodiment, the cover  1220  can both securely hold the information handling system  1204  on the charging pad  1202  and obstruct the view of the information handling system from other individuals. If the individual decides to remove the information handling system  1204  from the charging pad  1202 , the individual can unlock the locking mechanism  1225  from the locking mechanism  1230 , and allow the cover  1220  to rotate around the rear portion  1212  of the pad covering device  1210  via the hinge  1223  until the information handling system  1204  can be removed from the charging pad  1202 . 
       FIGS. 13 a - d    show a mobile computing device  1300  that includes a body  1302  and an articulating wireless power receiver or easel  1304 . The body  1302  has a back side  1306  and a front side  1308 . The easel  1304  is preferably adapted to fit within an indentation  1310  formed in the back side  1306  of the mobile computing device. The easel  1304  is normally biased to that position, as shown in  FIG. 13 a   , by a universal hinge or joint  1312 . 
     The mobile computing device  1300 , which for example may be a cellular telephone or a tablet computer, typically has a display on its front side  1308 . In order that the mobile computing device  1300  may be wirelessly recharged, the easel  1304  may be provided with a wireless power receiver coil  1314 . With the easel  1304  in the position shown in  FIG. 13 a   , the mobile computing device  1300  may be laid flat on its back side  1302  so that the coil  1314  is brought proximate to a wireless power transmitting coil, as is well known. 
     The easel  1304  may also be rotated about an axis extending out of the page as shown in  FIG. 13 b    so that the easel may pass through a range of positions to (and beyond) that shown in  FIG. 13 b   . The hinge  1312  may provide mechanical resistance or stops so that the device  1300  can rest in the orientation shown upon a horizontal surface  1316 . In this way the mobile computing device  1300  may present its front side  1308  to a user and remain in use in a potentially more functional orientation. At the same time the receiver coil  1314  can be brought into opposition with a transmission coil  1318  in the horizontal surface  1316 . Thus power wirelessly transmitted from the coil  1318  to the coil  1314  may recharge a battery  1320  connected in well know fashion to the coil  1314 . 
     The universal hinge  1312  also allows the easel  1304  to rotate between the position shown in  FIG. 13 b    and the position shown in  FIG. 13 c   . Any of these orientations of the easel  1304  may be convenient, for example, to bring the coil  1314  into alignment with a transmission coil disposed in a non-standard manner, or to orient the mobile computing device  1300  in something other than a perfectly vertical or perfectly horizontal orientation. It also should be appreciated that the easel  1304  may be rotated an additional 180 degrees from the position shown in  FIG. 13 b    about the axis extending perpendicular from the page, and then rotated 180 degrees about a perpendicular axis lying in the plane of the page so that the coil  1314  remains facing down, but extends generally under the device and from the front side  1308 . 
       FIG. 13 d    shows an alternative embodiment of the mobile computing device that includes a wire  1322  connecting the hinge  1312  with the body  1302  of the device. This arrangement allows the easel  1304  to be extended away from the body  1302 , thus providing an even greater number of relative orientations between the easel and the device  1300 . A take up spool (not shown) within the body of the device  1300  may also provide a mechanism by which to retract the wire  1322  when a user desires to return the easel  1304  closer to the body  1302 . 
       FIGS. 14 a - d    show a mobile computing device  1400  according to an embodiment of the present disclosure. The mobile computing device  1400  includes a body  1402  and an articulating wireless power receiver or easel  1404 . The body  1402  has a back side  1406  and a front side  1408 . The mobile computing device  1400  includes a receiver coil  1414  and a magnetic shield  1404  within the wireless power receiver  1404 . The wireless power receiver  1404  is preferably adapted to fit within an indentation  1410  formed in the back side  1406  of the mobile computing device  1400 . The mobile computing device  1400  also includes an isolation marker  1430  in physical communication with a first surface  1405  of the wireless power receiver  1404 . The wireless power receiver  1404  is normally biased, as shown in  FIG. 14 a   , with the isolation marker  1430  and the first surface  1405  of the wireless power receiver in physical communication with the indentation  1410  and a second surface  1407  facing out from the mobile computing device  1400 . 
     In order that the mobile computing device  1400  may be wirelessly recharged, the wireless power receiver  1404  may be provided with a wireless power receiver coil  1414 . The wireless power receiver  1404  may be rotated about an axis extending out of the page as shown in  FIG. 14 b    so that the receiver coil  1414  can be brought into opposition with a transmission coil  1418  in a charging pad  1416  via a hinge  1412  as described with respect to hinge  1312  in  FIGS. 13 a -13 d    above. Thus, power wirelessly transmitted from the coil  1418  to the coil  1414  may recharge a battery of the mobile computing device  1400 . In an embodiment, the battery may be connected in well know fashion to the coil  1414 . One of ordinary skill in the art would recognize that the wireless power receiver  1404  may extend from the mobile computing device  1400  in a variety of different manners or may be continuously extended from the mobile computing device without varying the scope of the isolation marker  1430 . 
     During operation, the wireless power receiver coil  1414  is energized by a high frequency signal, which generates a magnetic field around wireless power receiver coil or inductor. When the wireless power receiver coil  1414  is placed within this magnetic field, a current is induced in the wireless power receiver coil  1414 , and it is this current that can be used to provide power to the battery or other components of the mobile computing device  1400 . In different embodiments, the wireless power receiver coil  1414  may or may not include a magnetic shield  1440  that can be implemented to reduce interference caused by a magnetic field generated by the wireless power receiver coil or in the vicinity of the wireless power receiver coil. 
     The isolation marker  1430  includes instructions  1432  and a marker  1434 . In an embodiment, the instructions  1432  can provide an individual with directions as to how to utilize the wireless power receiver  1404  to charge the mobile computing device  1430 . The instructions  1432  can include written instructions and/or pictures to describe how the wireless power receiver  1404  is utilized with respect to the wireless charging pad  1416 . In an embodiment, the instructions  1432  can identify the steps the individual should perform to properly align the wireless power receiver coil  1414  with the transmission coil  1418  of the wireless charging pad  1416 . For example, the instructions  1432  can include that the wireless power receiver  1404  may be extended to be perpendicular with the back side  1406  of the mobile computing device  1400 , as shown in  FIGS. 14 b -14 d   , and then the marker  1434  can be positioned above a marker  1450  on the wireless charging pad  1416 . 
     In an embodiment, the marker  1434  can mark or identify the location of the wireless power receiver coil  1414  within the wireless power receiver  1404 . In an embodiment, the marker  1434  can be any design, such as a bulls-eye, to show the location of the receiver coil  1414 . The wireless charging pad  1416  includes a marker  1450  above the transmission coil  1418  as shown in  FIG. 14C . In an embodiment, the marker  1450  can be a logo of the manufacturer of the charging pad  1416 , can be the logo of a company providing the charging pad for the use of its customers, or the like. 
     An individual can utilize the instructions  1432  and the marker  1434  of the isolation marker  1430  and the marker  1450  to line up the transmission coil  1418  and the receiver coil  1414 . The individual can then move the wireless power receiver  1404  in any direction, such as the direction of arrows A, B, C, and D shown in  FIG. 14C , to position the marker  1434  over marker  1450 . When the marker  1434  of the wireless power receiver  1404  is located over the marker  1450  of the wireless charging pad  1416  as shown in  FIG. 14D , the receiver coil  1414  is in a proper location over the transmission coil  1418 . 
     In an embodiment, the isolation marker  1430  can be implemented as a magnetic shield to isolate or reduce interference caused by a magnetic field generated by the wireless power receiver coil or in the vicinity of the wireless power receiver coil, and can be also designed to manipulate a shape of a magnetic flux field generated by transmission coil  1418  in the charging pad  1416 . In particular, isolation marker  1430  is included at a rear surface of a transmitting and at a rear surface of a receiving inductor, such that when a data processing device is placed on a wireless charging pad, the transmitting antenna and the receiving antenna are sandwiched between the magnetic shields. This arrangement causes the magnetic flux lines to be concentrated between the magnetic shields, thereby increasing flux density at the receiving coil and increasing power transfer efficiency. Furthermore, power transfer efficiency is decreased and undesirable heating can occur if the magnetic flux field intersects conductive material, such as metal parts included in the device being charged. Accordingly, isolation marker  1430  reduces an amount of magnetic flux that interacts with other portions of a charging pad, a device being charged, the individual placing the computing device  1400  on the charging pad  1416 , or the like. 
     The isolation marker  1430  may include magnetic materials, such as ferrites, which can influence magnetic fields in its environment. Materials such as ferrite have a greater permeability to magnetic fields than the air around them and therefore concentrate the magnetic field lines around the wireless power receiver coil  1414 . Thus, isolation marker  1430  may aid an individual in properly locating the receiver coil  1414  directly over the transmission coil  1418  to provide optimal charging of the mobile computing device  1400 . Additionally, the isolation marker  1430  can isolate the magnetic field in receiver coil  1404 , such that the magnetic field does not pass through the wireless power receiver  1404  and extend to an individual&#39;s hand as the individual places the receiver coil  1404  directly over the transmission coil  1418 . 
     While the computer-readable medium is shown to be a single medium, the term “computer-readable medium” includes a single medium or multiple media, such as a centralized or distributed database, and/or associated caches and servers that store one or more sets of instructions. The term “computer-readable medium” shall also include any medium that is capable of storing, encoding, or carrying a set of instructions for execution by a processor or that cause a computer system to perform any one or more of the methods or operations disclosed herein. 
     In a particular non-limiting, exemplary embodiment, the computer-readable medium can include a solid-state memory such as a memory card or other package that houses one or more non-volatile read-only memories. Further, the computer-readable medium can be a random access memory or other volatile re-writable memory. Additionally, the computer-readable medium can include a magneto-optical or optical medium, such as a disk or tapes or other storage device to store information received via carrier wave signals such as a signal communicated over a transmission medium. Furthermore, a computer readable medium can store information received from distributed network resources such as from a cloud-based environment. A digital file attachment to an e-mail or other self-contained information archive or set of archives may be considered a distribution medium that is equivalent to a tangible storage medium. Accordingly, the disclosure is considered to include any one or more of a computer-readable medium or a distribution medium and other equivalents and successor media, in which data or instructions may be stored. 
     In the embodiments described herein, an information handling system includes any instrumentality or aggregate of instrumentalities operable to compute, classify, process, transmit, receive, retrieve, originate, switch, store, display, manifest, detect, record, reproduce, handle, or use any form of information, intelligence, or data for business, scientific, control, entertainment, or other purposes. For example, an information handling system can be a personal computer, a consumer electronic device, a network server or storage device, a switch router, wireless router, or other network communication device, a network connected device (cellular telephone, tablet device, etc.), or any other suitable device, and can vary in size, shape, performance, price, and functionality. 
     The information handling system can include memory (volatile (e.g. random-access memory, etc.), nonvolatile (read-only memory, flash memory etc.) or any combination thereof), one or more processing resources, such as a central processing unit (CPU), a graphics processing unit (GPU), hardware or software control logic, or any combination thereof. Additional components of the information handling system can include one or more storage devices, one or more communications ports for communicating with external devices, as well as, various input and output (I/O) devices, such as a keyboard, a mouse, a video/graphic display, or any combination thereof. The information handling system can also include one or more buses operable to transmit communications between the various hardware components. Portions of an information handling system may themselves be considered information handling systems. 
     When referred to as a “device,” a “module,” or the like, the embodiments described herein can be configured as hardware. For example, a portion of an information handling system device may be hardware such as, for example, an integrated circuit (such as an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), a structured ASIC, or a device embedded on a larger chip), a card (such as a Peripheral Component Interface (PCI) card, a PCI-express card, a Personal Computer Memory Card International Association (PCMCIA) card, or other such expansion card), or a system (such as a motherboard, a system-on-a-chip (SoC), or a stand-alone device). 
     The device or module can include software, including firmware embedded at a device, such as a Pentium class or PowerPC™ brand processor, or other such device, or software capable of operating a relevant environment of the information handling system. The device or module can also include a combination of the foregoing examples of hardware or software. Note that an information handling system can include an integrated circuit or a board-level product having portions thereof that can also be any combination of hardware and software. 
     Devices, modules, resources, or programs that are in communication with one another need not be in continuous communication with each other, unless expressly specified otherwise. In addition, devices, modules, resources, or programs that are in communication with one another can communicate directly or indirectly through one or more intermediaries. 
     Although only a few exemplary embodiments have been described in detail herein, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of the embodiments of the present disclosure. Accordingly, all such modifications are intended to be included within the scope of the embodiments of the present disclosure as defined in the following claims. In the claims, means-plus-function clauses are intended to cover the structures described herein as performing the recited function and not only structural equivalents, but also equivalent structures.