Patent Publication Number: US-2019173290-A1

Title: Signal receiving and transmitting circuit and electronic device including the samesignal receiving and transmitting circuit and electronic device including the same

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application is a continuation application of prior application Ser. No. 14/944,921, filed on Nov. 18, 2015, which claimed priority under 35 U.S.C. § 119(a) of a Korean patent application number 10-2014-0163855, filed on Nov. 21, 2014 in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference herein in its entirety. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to signal transmission and reception for wireless power transfer (WPT) and wireless communication. 
     BACKGROUND 
     Wireless power transfer (WPT) technology is a technology that converts electrical energy into an electromagnetic wave to deliver energy to a load without a transmission line. As an example, a magnetic induction technique is a technique that delivers power by using a magnetic field induced to a coil. Since the magnetic induction technique enables a current to flow into a transmission coil to generate the magnetic field, an induced current flows into an adjacent reception coil so that it is possible to supply energy to the load. To provide the above-described wireless power transmission, there is a need to dispose various elements. 
     A magnetic secure transmission (MST) technology is an offline payment technique that uses magnetic communication. The MST technology has an advantage in that it is possible to use the technology without separate additional investment by using a magnetic point of sale (POS) device that is usually used in a retail store. There is a need to dispose various elements for signal transmission in an MST system. 
     Recently, for user convenience, the WPT and MST technologies as described above are being employed in an electronic device. 
     However, the disposition of various elements is required for both the WPT technology and the MST technology. However, since a portable electronic device has a limitation in size and seeks a decrease in thickness for the purpose of an aesthetic sense, it is difficult to simultaneously employ the WPT technology and the MST technology. Also, there is a limitation in that, due to the addition of various elements, the price of goods rises. 
     The above information is presented as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with regard to the present disclosure. 
     SUMMARY 
     Aspects of the present disclosure are to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present disclosure is to provide a signal transmitting and receiving circuit that may simultaneously implement a wireless power transfer (WPT) technology and a magnetic secure transmission (MST) technology by the disposition of relatively small elements, and an electronic device including the same, thus leading to a more efficient implementation of WPT and MST in an electronic device. 
     In accordance with an aspect of the present disclosure, a signal transmission and reception circuit is provided. The signal transmission and reception circuit includes a coil configured to receive power wirelessly supplied from the outside or output a specific signal wirelessly, a transmission and reception control module including a signal conversion switching circuit that is connected to the coil to rectify the wirelessly supplied power or convert a signal to be output and a driver that controls a switching state of the signal conversion switching circuit, and a filter configured to convert the signal to be output into a specific signal. 
     In accordance with another aspect of the present disclosure, an electronic device is provided. The electronic device includes a signal transmission and reception circuit configured to receive power wirelessly supplied from the outside or output a specific signal wirelessly, a power control unit configured to control power supply to the signal transmission and reception circuit, and a control module configured to control power supply from the power control unit and control signal reception or output of the signal transmission and reception circuit, wherein the signal transmission and reception circuit includes a coil performing the power reception and signal output, a transmission and reception control module including a signal conversion switching circuit that is connected to the coil to rectify wirelessly supplied power or convert a signal to be output and a driver that controls a switching state of the signal conversion switching circuit, and a filter configured to convert the signal to be output into the specific signal. 
     Other aspects, advantages, and salient features of the disclosure will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses various embodiments of the present disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other aspects, features, and advantages of certain embodiments of the present disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which: 
         FIG. 1A  is a diagram representing an example of an electronic device according to various embodiments of the present disclosure; 
         FIG. 1B  is a diagram representing an example of a transmission and reception control module according to various embodiments of the present disclosure; 
         FIG. 2A  is a diagram representing an example of a signal transmission and reception circuit according to various embodiments of the present disclosure; 
         FIG. 2B  is a diagram explaining a signal reception state of a signal transmission and reception circuit according to various embodiments of the present disclosure; 
         FIG. 2C  is a diagram explaining a magnetic secure transmission (MST) execution state of a signal transmission and reception circuit according to various embodiments of the present disclosure; 
         FIG. 3  is a diagram representing an example of a signal transmission and reception circuit according to various embodiments of the present disclosure; 
         FIG. 4  is a diagram representing another example of an electronic device that uses a single coil according to various embodiments of the present disclosure; 
         FIG. 5  is a diagram representing an example of a transmission and reception control module that supports operation of a single coil according to various embodiments of the present disclosure; 
         FIG. 6  is a diagram representing an example of an electronic device that uses a plurality of coils according to various embodiments of the present disclosure; 
         FIG. 7  is a diagram representing an example of a shape of a plurality of coils according to various embodiments of the present disclosure; 
         FIG. 8  is a diagram representing an example of a transmission and reception control module that uses a plurality of coils according to various embodiments of the present disclosure; 
         FIG. 9  is a diagram representing another example of a shape of a plurality of coils according to various embodiments of the present disclosure; 
         FIG. 10  is a diagram representing an example of an electronic device that has an independent inverter according to various embodiments of the present disclosure; and 
         FIG. 11  is a diagram representing an example of an independent inverter and transmission and reception control module according to various embodiments of the present disclosure. 
     
    
    
     Throughout the drawings, it should be noted that like reference numbers are used to depict the same or similar elements, features, and structures. 
     DETAILED DESCRIPTION 
     The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness. 
     The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents. 
     It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “a component surface” includes reference to one or more of such surfaces. 
     In the present disclosure, the expression ‘has’, ‘may have’, “comprises”, “contains”, “includes” or ‘may include’ indicates the existence of a corresponding characteristic (e.g., numerical value, function, operation or component, such as a part) and does not exclude the existence of additional characteristics. 
     In the present disclosure, the term “A or B”, “at least one of A and/or B”, or “one or more of A and/or B” may include all possible combinations of items listed together. For example, the term “A or B”, “at least one of A and B”, or “at least one of A or B” may indicate all the cases of (1) including at least one A, (2) including at least one B, and (3) including at least one A and at least one B. 
     The term “first”, “second” or the like as used herein may modify various components regardless of order and/or priority, but does not limit the components. Such terms may be used to distinguish one component from another component. For example, “a first user device” and “a second user device” may indicate different user devices regardless of order or priority. For example, without departing the scope of the present disclosure, a first component may be referred to as a second component and vice versa. 
     It will be understood that when a certain component (e.g., a first component) is referred to as being “operatively or communicatively coupled with/to” or “connected to” another component (e.g., a second component), the certain component may be coupled to the other component directly or via another component (e.g., a third component). However, when a certain component (e.g., a first component) is referred to as being “directly coupled” or “directly connected” to another component (e.g., a second component), there may be no intervening component (e.g., a third component) between the component and the other component. 
     The term “configured (or set) to” may be interchangeably used with the term, for example, “suitable for”, “having the capacity to”, “designed to”, “adapted to”, “made to”, or “capable of”. The term “configured (or set) to” may not necessarily have the meaning of “specifically designed to”. In some cases, the term “device configured to” may indicate that the device “may perform” together with other devices or components. For example, the term “processor configured (or set) to perform A, B, and C” may represent a dedicated processor (e.g., an embedded processor) for performing a corresponding operation, or a generic-purpose processor (e.g., a central processing unit (CPU) or an application processor) for executing at least one software program stored in a memory device to perform a corresponding operation. 
     Features, integers, characteristics, compounds, chemical moieties or groups described in conjunction with a particular aspect, embodiment or example of the present disclosure are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith. 
     The terminology used herein is not for delimiting the present disclosure but for describing specific various embodiments. Commonly-used terms defined in a dictionary may be interpreted as having meanings that are the same as or similar to contextual meanings defined in the related art, and should not be interpreted in an idealized or overly formal sense unless otherwise defined explicitly. Depending on cases, even the terms defined herein should not be such interpreted as to exclude various embodiments of the present disclosure. 
     In the following, electronic devices according to various embodiments of the present disclosure are described with reference to the accompanying drawings. In the present disclosure, the term ‘user’ may indicate a person who uses an electronic device, or a device (e.g., an artificial-intelligence electronic device) that uses the electronic device. 
       FIG. 1A  is a diagram representing an example of an electronic device according to various embodiments of the present disclosure. 
     Referring to  FIG. 1A , an electronic device  100  may include a control module  160 , a signal transmission and reception circuit  200 , a power control unit  140 , and a battery  130 . Additionally or alternatively, the electronic device  100  may further include a memory, a display, an input and output module, etc. for supporting various functions that may be provided through the signal transmission and reception circuit  200 . According to an embodiment of the present disclosure, the electronic device  100  may store, in the memory, a program relating to supporting a magnetic secure transmission (MST) function that is provided through the signal transmission and reception circuit  200 , and output an icon or the like relating to the execution of the MST function to the display. In addition, it is possible to generate an input signal relating to controlling the execution of the MST function, through the input module. Also, the electronic device  100  may store, in the memory, a program for supporting a wireless power reception function or wireless power transmission function that may be performed by the signal transmission and reception circuit  200 . As described above, the signal transmission and reception circuit  200  may be a circuit that supports the transmission and reception of a power signal or a signal relating to the execution of the MST function. In addition, the electronic device  100  may provide a user interface relating to the execution of the wireless power reception function or wireless power transmission function, through the display. 
     The battery  130  may supply power required for the operation of the electronic device  100 . The battery  130  may be provided as e.g., a secondary battery to be charged by power supplied by the power control unit  140  and to supply power according to the control of the power control unit  140 . According to various embodiments of the present disclosure, the battery  130  may be charged with power wirelessly received through the signal transmission and reception circuit  200  and a coil  120  for transmitting and/or receiving power wirelessly and/or signals for MST. Also, the power from the battery  130  may be transmitted wirelessly through the signal transmission and reception circuit  200  and the coil  120 . According to various embodiments of the present disclosure, the electronic device  100  may also support battery charging through wired charging in addition to wireless charging. 
     The power control unit  140  may be connected to the battery  130  to control the charging or discharging of the battery  130 . For example, the power control unit  140  may monitor the charged state of the battery  130  and deliver the monitored value to the control module  160 . According to an embodiment of the present disclosure, the power control unit  140  may deliver received power to the battery  130  to charge the battery, when power is received from the outside through the signal transmission and reception circuit  200 . The power control unit  140  may deliver power from the battery  130  to the signal transmission and reception circuit  200  according to the control of the control module  160 . 
     The control module  160  may perform signal processing and transmission relating to the operation (or usage) of the function of the electronic device  100 . According to an embodiment of the present disclosure, the control module  160  may control at least one of the MST function, the wireless power reception function, and the wireless power transmission function. Regarding this, the control module  160  may provide a menu, an icon, etc. relating to the operation of the above-described functions and control the signal transmission and reception circuit  200  relating to the wireless power transmission function or MST function in response to the selection of the menu or the icon. Alternatively, the control module  160  may control the signal transmission and reception circuit  200  for the execution of the wireless power reception function in response to a user input or external input (e.g., sensing the transmission of wireless power by an external electronic device). 
     The signal transmission and reception circuit  200  may include devices relating to the execution of the wireless power transfer function (WPT) and MST function of the electronic device  100 . The signal transmission and reception circuit  200  may deliver power received from the outside to the power control unit  140  in response to the control of the control module  160  or an external input. Also, the signal transmission and reception circuit  200  may wirelessly transfer the battery  130  power delivered by the power control unit  140  or perform the transmission of a signal relating to the execution of the MST function according to the control of the control module  160 . Such a signal transmission and reception circuit  200  may include a transmission and reception control module  150 , an MST module  110 , and the coil  120 . 
     The MST module  110  may include any of various elements, e.g., a capacitor, a resistor, etc. so that a signal output from the transmission and reception control module  150  is output as a signal of a specific type i.e. a signal having specific characteristics suited to a device intended to receive the signal. For example, the MST module  110  may convert a certain power signal delivered by the transmission and reception control module  150  into a signal having a certain specific size, magnitude, pulse shape or timing to deliver the converted signal to the coil  120  so that a signal of a specific pulse type is output through the coil  120 . The MST module  110  may also have a signal transmission state in response to the control of the control module  160  as well as the transmission and reception control module  150 . 
     The coil  120  may be selectively (or conditionally) connected to the MST module  110  and the transmission and reception control module  150 . The selectively connected coil  120  may be capable of supporting the MST function and performing WPT. Alternatively, the coil  120  may be provided in plurality to include a coil connected to the MST module  110  and a coil connected to the transmission and reception control module  150 . The coils provided in plurality may include a coil that has a physical characteristic for supporting the MST function, and a coil that has a physical characteristic for WPT. 
     The coil may deliver, to the transmission and reception control module  150 , an induced electromotive force induced to a signal transmitted by an external electronic device (e.g., a magnetic signal by a coil of an external electronic device through which a current flows) during the execution of the wireless power reception function. The coil may generate a magnetic signal according to the current delivered by the transmission and reception control module  150  during the execution of the wireless power transmission function. The coil may output a signal delivered through the MST module with the shape or characteristics of a certain pulse during the execution of the MST function. 
     The transmission and reception control module  150  may be connected to the control module  160  and the power control unit  140  to perform signal conversion during the execution of the wireless power reception function, the wireless power transmission function, and the MST function. For example, the transmission and reception control module  150  may convert an alternating current (AC) signal received from the outside into a direct current (DC) signal during the execution of the wireless power reception function to deliver the converted signal to the power control unit  140 . Also, the transmission and reception control module  150  may convert the DC signal transmitted by the power control unit  140  into the AC signal during the execution of the wireless power transmission function to deliver the converted signal to the coil  120 . The transmission and reception control module  150  may generate a signal of a certain frequency band, magnitude and/or timing in response to the control of the control module  160  during the execution of the MST function and then deliver the generated signal to the MST module  110 . 
       FIG. 1B  is a diagram representing an example of a transmission and reception control module according to various embodiments of the present disclosure. 
     Referring to  FIG. 1B , the transmission and reception control module  150  may include a driver  151 , a switching circuit  153 , and a signal conversion switching circuit (e.g., inverter  155 ). 
     The inverter  155  may be configured having a bridge type arrangement of a plurality of switches, e.g., four switches. Such an inverter  155  may be connected to the driver  151  and the switching circuit  153 , and additionally to the coil  120  or selectively to the MST module  110 . The inverter  155  may convert an AC signal received by the coil  120  into a DC signal. Also, the inverter  155  may convert the DC signal of the power control unit  140  delivered through the switching circuit  153  into the AC signal to deliver the converted signal to the coil  120  or the MST module  110 . 
     The switching circuit  153  may be disposed between the power control unit  140  and the inverter  155  to control the state of the transmission and reception control module  150 . For example, the switching circuit  153  may selectively classify a wireless power transmission state and a wireless power reception state. Such a switching circuit  153  may have a certain state according to the control of e.g., the control module  160 . 
     The driver  151  may control the switch state of the switches included in the inverter  155  to control the signal conversion of the inverter  155 . For example, the driver  151  may form a path so that the AC signal received from the outside in the case of the wireless power reception state is delivered to the power control unit  140  through the switching circuit  153 . Also, the driver  151  may enable a specific signal through the state control of the switches to be delivered to the MST module  110  in the case of the MST function execution state. 
     According to various embodiments of the present disclosure, the control module  160  may control the switching circuit  153  so that a reception route for the wireless power reception state is formed, when a power signal having a value equal to or greater than a certain size is received from the external electronic device  100 . In addition, the control module  160  may deliver a certain control signal to the driver  151  to control the state of the inverter  155  so that the received AC signal is converted into the DC signal. 
     Also, the control module  160  may control the switching circuit  153  to form a route for executing the wireless power transmission function when there is a user input (e.g., an input relating to the execution of the wireless power transmission function). In addition, the control module  160  may control the inverter  155  to convert DC power of the battery  130  provided by the power control unit  140  into AC power and then control the inverter  155  so that the AC power obtained through the conversion is delivered to the coil  120 . 
     Also, when there is a user input (e.g., an execution of an application relating to the execution of the MST function, an icon selection, or a specific key button selection), the control module  160  may control the switching circuit  153  to form a route having a state in which a signal transmission function is executed. In addition, the control module  160  may control the gate opening and closing timing of the switches of the inverter  155  so that a signal of a certain specific type is delivered to the coil  120  through the MST module  110 . 
     In the case of the wireless power reception state, the control module  160  may receive the current wireless power to control a screen user interface (UI) or audio information output relating to the charged situation of the battery  130 . Also, the control module  160  may check the charged state of the battery  130  and output corresponding information. In the wireless power transmission state, the control module  160  may inform of the wireless power that is currently being output, check the charged state of the battery  130  accordingly, and output information relating to the charged state. 
     As described above, an electronic device according to an embodiment of the present disclosure may include a signal transmission and reception circuit for receiving power wirelessly supplied from the outside or for outputting a specific signal wirelessly, a power control unit for controlling power supply to the signal transmission and reception circuit, and a control module for controlling the power supply of the power control unit and the signal reception or output of the signal transmission and reception circuit, wherein the signal transmission and reception circuit may include a coil for power reception or signal output, a transmission and reception control module including a switching circuit connected to the coil to rectify a wirelessly supplied current or convert a signal to be output and a driver for controlling the switch state of the switching circuit, and a filter for converting the signal to be output into the specific signal. 
     According to various embodiments of the present disclosure, the electronic device may further include a battery that may be charged by wirelessly supplied power or provides power used for the signal output. 
     According to various embodiments of the present disclosure, the signal transmission and reception circuit may further include a capacitor connected in parallel to the filter and disposed between the switching circuit and the coil, wherein the capacitor may have a capacitance equal to or lower than a specific size (e.g., 1/50 times or less capacitance) in comparison to the capacitance of the filter. 
     According to various embodiments of the present disclosure, the signal transmission and reception circuit may further include a state switch controlling the connection of the filter and the switching circuit conditionally or corresponding to a specific condition, wherein the state switch may have a turn-off state during the reception of the power. 
     According to various embodiments of the present disclosure, the coil may include a first coil for the output of the specific signal and a second coil for the wireless power reception. 
     According to various embodiments of the present disclosure, the switching circuit may include a signal transmission control circuit and a first control circuit that control the output of a signal relating to the operation of the first coil, and the first control circuit and a second control circuit that control signal transmission and reception relating to the operation of the second coil. 
     The switching circuit may include a first control circuit and a second control circuit that control a signal output relating to the operation of the second coil. 
     The signal transmission and reception circuit may further include an inverter including a signal transmission switching circuit that uses the first control circuit as a common circuit and switches a signal provided by the transmission control module to deliver the switched signal to the filter. 
     The signal transmission switching circuit may be configured by connecting a plurality of switches in a cascade structure. 
       FIG. 2A  is a diagram representing an example of a signal transmission and reception circuit according to various embodiments of the present disclosure. 
     Referring to  FIG. 2A , a signal transmission and reception circuit  200  according to an embodiment may include a driver  151 , an inverter  155 , an MST module  110 , a coil  120 , a first capacitor  121 , and a power processing module  154  (e.g., low drop out (LDO) or buck, booster, etc., referred to hereinafter as “LDO”). 
     The inverter  155  may include e.g., a first switch S 1 , a second switch S 2 , a third switch S 3 , and a fourth switch S 4 . The first switch S 1  and the fourth switch S 4  may have the same control state and the second switch S 2  and the third switch S 3  may also have the same control state. Also, the first switch S 1  and the second switch S 2  may have different control states. For example, when the first switch S 1  and the fourth switch S 4  are in the turn-on state, the second switch S 2  and the third switch S 3  may have the turn-off state. On the contrary, when the first switch S 1  and the fourth switch S 4  are in the turn-off state, the second switch S 2  and the third switch S 3  may have the turn-on state. The first to fourth switches S 1  to S 4  may be configured by using N type metal oxide semiconductor field-effect transistors (MOSFETs). 
     The MST module  110  may include e.g., a first state switch  111  and an MST pulse shaper filter  113 . The first state switch  111  may have a turn-on state while the electronic device  100  receives a request for the execution of the MST function according to the control of a control module  160  or the driver  151 . When the MST function is not separately executed, the first state switch  111  may have the turn-off state. The MST module  110  may be disposed in parallel to the first capacitor  121 . The coil  120  may be connected in series with the MST module  110 . One end of the coil  120  may be connected to the drain of the first switch S 1  of the inverter  155  and the other end of the coil may be connected to the source of the fourth switch S 4 . The first capacitor  121  may be disposed between the coil  120  and the drain of the first switch S 1 . A capacitor may also be disposed in the MST pulse shaper filter  113 . A capacitance of the capacitor included in the MST pulse shaper filter  113  (or a capacitance of the filter  113 ) may be equal to or greater than (e.g., 50 times) a capacitance of the first capacitor  121 . 
     In the above-described structure, when the first state switch  111  is turned-on, the capacitor of the MST pulse shaper filter  113  has a significantly greater capacitance in comparison to the first capacitor  121  when viewing the coil  120  from the outside, thus the structure may be equivalent to when only the MST module  110  is connected to the coil  120  without being affected by the first capacitor  121 . Also, when the first state switch  111  is turned-off, the MST pulse shaper filter  113  may become a floating state relative to the coil  120 . In the floating state, the capacitor included in the MST pulse shaper filter  113  may correspond to the substantially removed state. As a result, an AC signal received through the coil  120  may be delivered to the inverter  155  through the first capacitor  121 . 
     The source of the first switch S 1  of the inverter  155  and the source of the second switch S 2  of the inverter are connected to each other. The drain of the third switch S 3  of the inverter and the drain of the fourth switch S 4  of the inverter are both connected to the ground. In addition, the source of the first switch S 1  and the source of the second switch S 2  are connected to a back to back LDO  154 . The LDO  154  may process power changed to a DC form through the inverter  155  to enable the power to charge the battery  130 , and then deliver the processed power to the power control unit  140 . 
       FIG. 2B  is a diagram explaining a signal reception state of a signal transmission and reception circuit according to various embodiments of the present disclosure. 
     Referring to  FIG. 2B , when wireless power is received from the outside in the wireless power charging state, in the signal transmission and reception circuit  200 , the cathode of an AC signal may be formed at one end of the coil  120  and the anode of the AC signal may be formed at the other end of the coil  120 . When it is sensed through a sensor separately provided on the coil  120  that there is a flow of a signal having a value equal to or greater than a certain size, a driver  151  may enable the first switch S 1  and the fourth switch S 4  to have a turn-on state and the second switch S 2  and the third switch S 3  to have a turn-off state. Thus, a signal formed in the coil  120  may flow toward the drain of the first switch S 1  along a signal line on which the first capacitor  121  is disposed, and may be supplied to the LDO  154  through the first switch S 1  in the turn-on state. In this example, the LDO  154  may deliver the supplied signal to the power control unit  140  through DC-DC conversion. A corresponding signal is returned to the coil  120  through the fourth switch S 4  grounded in common with the LDO  154 , so the ½ cycle of the AC signal through the first switch S 1  and the fourth switch S 4  may be completed. 
     Since wireless power received from the outside is changed in characteristic according to an AC signal characteristic during the remaining ½ cycle, the anode of the AC signal may be formed at one end of the coil  120  and the cathode of the AC signal may be formed at the other end of the coil. The driver  151  may enable the first switch S 1  and the fourth switch S 4  to have a turn-off state, and the second switch S 2  and the third switch S 3  to have a turn-on state. Thus, the signal formed in the coil  120  may be delivered to the LDO  154  through the second switch S 2  in the turn-on state and may be returned through a signal line on which the first capacitor  121  is disposed, via the third switch S 3  connected to a common ground. In the above-described operation, switches included in the inverter  155  may rectify the AC signal to convert the rectified signal into a DC signal and deliver the converted signal to the LDO  154 . 
     Regarding the above-described wireless power reception, the control module  160  may use a sensor disposed on the coil  120  to determine whether the circuit is in the wireless power reception state, as mentioned earlier. Thus, the control module  160  may control the switch state so that the signal transmission and reception circuit  200  may receive power. 
       FIG. 2C  is a diagram explaining the MST execution state of a signal transmission and reception circuit according to various embodiments of the present disclosure. 
     Referring to  FIG. 2C , in a wireless power transmission state, a signal transmission and reception circuit  200  may receive, through the LDO  154 , a signal supplied from the power control unit  140 , and deliver the received signal to an inverter  155  to enable the signal to flow toward the coil  120 . Regarding this, the driver  151  may enable the first switch S 1  and the fourth switch S 4  to have a turn-on state, and the second switch S 2  and the third switch S 3  to have a turn-off state. Thus, a path may be formed which includes the first switch S 1  in the turn on state, a signal line including a first capacitor  121 , a coil  120 , the fourth switch S 4 , and a ground. A DC signal output through the LDO  154  may be converted into an AC signal via the switches of the inverter  155  and then flow into the coil  120 . 
     When the ½ cycle of the AC signal elapses, the driver  151  may enable the first switch S 1  and the fourth switch S 4  to have a turn-off state, and the second switch S 2  and the third switch S 3  to have a turn-on state. Thus, the DC signal output through the LDO  154  may be supplied along a path that includes the second switch S 2  in the turn-on state, the source of the fourth switch S 4 , the coil  120 , a signal line on which the first capacitor  121  is disposed, the drain of the first switch S 1 , the third switch S 3 , and the ground, to supply the AC signal to the coil  120 . 
     Regarding the above-described operation control, the control module  160  may receive an input signal for activating a wireless power transmission function, from an input module or a display having an input function. Alternatively, the control module  160  may activate an application relating to the wireless power transmission function or receive a message requesting the wireless power transmission function from an external electronic device. The control module  160  may control a power control unit  140  so that, according to the generation of a specific signal (e.g., the input signal or message relating to the activation of the above-described wireless power transmission function, or a user input signal), power stored in a battery  130  is supplied to a signal transmission and reception circuit  200 , and deliver a control signal to the driver  151  of a transmission and reception control module  150  to control the state of the switches. 
       FIG. 3  is a diagram representing another example of a signal transmission and reception circuit according to various embodiments of the present disclosure. 
     Referring to  FIG. 3 , a signal transmission and reception circuit  200  according to various embodiments may include a driver  351 , an inverter  355 , an MST module  310 , a coil  320 , a first capacitor C 1 , a first state switch  311 , a second state switch  353 , and an LDO  357 . 
     In this example, the second state switch  353  is a single pole double throw (SPDT) type switch that may select a reception mode and a transmission mode. When the second state switch  353  operates in the Rx mode, DC power rectified at an NMOS synchronous rectifier may be applied to the LDO  357  so that DC power of a certain magnitude may be generated. When the second state switch  353  operates in the Tx mode, DC power applied from the LDO  357  may be converted into AC power. 
     In the signal transmission and reception circuit  200 , the inverter  355  may include first to fourth switches S 1  to S 4  configured in a bridge type arrangement, wherein the third switch S 3  and the fourth switch S 4  may have a common ground state. In addition, the drain of the first switch S 1  may be connected to one end of the coil  320  via the first capacitor C 1  and the drain of the second switch S 2  (or the source of the fourth switch) may be connected to the other end of the coil. The MST module  310  that includes the first state switch  311  and an MST pulse shaper filter  313  may be connected in parallel to the first capacitor C 1 , and one end of the first capacitor C 1  may be connected to one end of the coil. The source of the first switch S 1  and the source of the second switch S 2  may be connected to one end of the second state switch  353 . According to the control of the driver  351  or the control module  160 , the selection channel of the second state switch  353  may be differently formed according to a wireless power reception state, a wireless power transmission state, etc. The LDO  357  may be connected to the second state switch  353  to be used for receiving power through the second state switch  353 . 
     The signal transmission and reception circuit  200  having the above-described configuration may include the same configuration as the signal transmission and reception circuit  200  of  FIG. 2A  as described earlier, except for the second state switch  353 . Thus, in the process of executing the wireless power reception function, the second state switch  353  is connected to the Rx mode of the LDO  357  (becomes the Rx mode), so the signal transmission and reception circuit  200  may deliver a received DC signal to a power control unit  140  according to the above-described method in  FIG. 2B . Also, in the process of executing the wireless power transmission function, the second state switch  353  is connected to the Tx mode of the LDO  357 , so the signal transmission and reception circuit  200  may deliver the DC signal to the coil  320  through an inverter according to the above-described method in  FIG. 2B . 
       FIG. 4  is a diagram representing another example of an electronic device that uses a single coil according to various embodiments of the present disclosure. 
     Referring to  FIG. 4 , an electronic device may include a control module  460 , a transmission and reception control module  450 , an MST module  410 , a first capacitor  421 , a coil  420 , and a power control unit  440 . 
     The control module  460  may selectively deliver, to the transmission and reception control module  450 , at least one of an MST function activation signal MST_EN, a wireless power transmission function activation signal TX_EN, and a wireless power reception function activation signal RX_EN. According to an embodiment of the present disclosure, the control module  460  may deliver any one of the above-described activation signals to the transmission and reception control module  450  according to a user input or the function execution of the electronic device  100 . Alternatively, the transmission and reception control module  450  may deliver the wireless power reception function activation signal RX_EN to the control module  460  according to an external input. The control module  460  may use signal lines connected to the general-purpose input/output (GPIO) port to control a first state switch  411  of the MST module  410  or control the power supply of the power control unit  440 . 
     The above-described control module  460  may receive power supplied from the power control unit  440  through the GPIO port to operate. The control module  460  may deliver control signals AP_D+ and AP_D− required for the control of a driver included in the transmission and reception control module  450 , to the data ports D+ and D− of the transmission and reception control module  450 . In addition, the back to back (B2B) LDO included in the transmission and reception control module  450  may be connected to the power control unit  440 . The LDO connected to the power control unit  440  may deliver a power signal received from the outside to the power control unit  440  or output a power signal transmitted by the power control unit  440  toward the coil  420 . 
     The first capacitor  421  may be connected in parallel to the MST module  410 , and the coil  420  may be connected to one end of the first capacitor  421  and to one end of the MST module  410 . In the electronic device  100  having such a structure, the control module  460  may control the operation of the MST module  410  according to the control of the first state switch  411 . For example, when the first state switch  411  is in a turn-on state, the capacitor of an MST pulse shaper filter  413  may be connected to the coil  420 . A capacitance of the capacitor of a MST pulse shaper filter  413  with a capacitance of the first capacitor  421  may be equal to or greater than a specific amount or size (e.g., 50 times). Thus, a signal that is output through the B2B LDO and then converted by the switching of an inverter may be converted into a specific pulse signal via the MST pulse shaper filter  413 , and the converted signal may be output through the coil  420 . 
     The above-described coil  420  may be capable of using a wireless power reception function, a wireless power transmission function, an MST function, etc. For example, the coil  420  may be used in the same manner while the signal transmission and reception circuit  200  is used as any one of the wireless power reception function, the wireless power transmission function, and the MST function. 
       FIG. 5  is a diagram representing an example of a transmission and reception control module that supports an operation of a single coil according to various embodiments of the present disclosure. 
     Referring to  FIG. 5 , a signal transmission and reception circuit may include a transmission and reception control module  450 , an MST module  410 , and a coil  420 . The MST module  410  may be connected in parallel to a first capacitor  421  and include a first state switch  411  and a capacitor  413  that are disposed in series. A first node  401  may be disposed between the first capacitor  421  and the coil  420 , and a second node  402  may be disposed between the first capacitor  421  and the transmission and reception control module  450 . 
     The transmission and reception control module  450  may include a first control circuit  510 , a second control circuit  520 , and an LDO  530 . Capacitors that function as a stabilizer may be disposed at the output Vrect (e.g., in an aspect of the wireless power reception function) of the LDO  530  and at the input Vout (e.g., in an aspect of the wireless power transmission function) thereof. 
     The first control circuit  510  may include e.g., a first front switch H 1 , a second front switch L 1 , and a first control node  511  that are connected in series, and a second control node  512  connected to the second front switch L 1 . The first control node  511  may be disposed between the first front switch H 1  and the second front switch L 1 . The second control node  512  may be disposed between the first front switch H 1  and the second control circuit  520  or between the first front switch H 1  and the LDO  530 . 
     The second control circuit  520  may include a first rear switch H 2  and a second rear switch L 2  that are connected in series, and a third control node  521 . The third control node  521  may be a point between the first rear switch H 2  and the second rear switch L 2 . The third control node  521  may be connected to the other end of the coil  420 . 
     A positive cyclic signal AC 1  received through the coil  420  may be delivered to the first control node  511 , and may be delivered to the LDO  530  through the first front switch H 1  in a turn-on state and the second control node  512 . Also, a negative cyclic signal AC 2  received through the coil  420  may be delivered to the third control node  521 , and may be delivered to the LDO  530  through the first rear switch H 2  in a turn-on state and the second control node  512 . 
     In the wireless power reception or wireless power transmission state, the first state switch  411  may have a turn-on state. When the first state switch  411  becomes a turn-on state, a DC signal output through the LDO  530  may be converted into an AC signal through the first control circuit  510  and the second control circuit  520 , and a corresponding signal may be supplied to the coil  420  through the first state switch  411  and a capacitor corresponding to an MST pulse shaper filter. 
       FIG. 6  is a diagram representing an example of an electronic device that uses a plurality of coils according to various embodiments of the present disclosure. 
     Referring to  FIG. 6 , an electronic device may include a control module  660 , a transmission and reception control module  650 , a power control unit  640 , a first coil  620   a , a second coil  620   b , a first capacitor  621 , and an MST capacitor  613 . 
     The control module  660  may communicate with the I2C_S of the transmission and reception control module  650  through the port I2C_M so that an MST function activation signal MST_EN and a wireless power transmission activation signal TX_EN may be transmitted and received. The transmission and control module  650  may wake up the control module  660  through the port INT. If it is sensed from a sensor disposed on the second coil  620   b  that a signal having a value equal to or greater than a specific size has been generated, the transmission and reception control module  650  may deliver a corresponding sensed signal to the control module  660  through the port INT to wake up the control module  660  in order to process the wireless power reception function. In this operation, a wireless power reception activation signal RX_EN may be delivered between the transmission and reception control module  650  and the control module  660 . 
     The transmission and reception control module  650  may be connected to the first coil  620   a  and the second coil  620   b  as shown in  FIG. 6 . One end of the first coil  620   a  may be connected to the transmission and reception control module  650  through the MST capacitor  613 . The first coil  620   a  may be used while the MST function is executed. One end of the second coil  620   b  may be connected to the other end of the first coil  620   a  and the other end of the second coil  620   b  may be connected to the transmission and reception control module  650  through the first capacitor  621 . The transmission and reception control module  650  may control a signal flow required for the operation of the first coil  620   a  through ports AC 0  and AC 1 , and control a signal flow required for the operation of the second coil  620   b  through ports AC 1  and AC 2 . The B2B LDO of the transmission and reception control module  650  may be connected to the power control unit  640 . 
     The power control unit  640  may be connected to a battery (e.g., battery  130 ) and the control module  640  and support power supply required for the wireless power transmission function or MST function according to the control of the control module  640 . Also, the power control unit  640  may support the wireless power reception function according to the control of the control module  640 . 
       FIG. 7  is a diagram representing an example of a shape of a plurality of coils according to various embodiments of the present disclosure. 
     Referring to  FIG. 7 , according to an embodiment of the present disclosure, the first coil  620   a  and the second coil  620   b  may be disposed as in state  701 . For example, the first coil  620   a  may be provided in such a manner that at least one closed curve is disposed at a distance equal to or greater than a certain value from the center. The second coil  620   b  may be disposed at the center of the first coil  620   a  in such a manner that at least one closed curve is disposed at a distance equal to or less than a certain value from the center. Although in  FIG. 7 , the first coil  620   a  and the second coil  620   b  are disposed in such a manner that two closed curves have a certain interval, various embodiments of the present disclosure are not limited thereto. The number of the closed curves may vary according to a mounting region. Although  FIG. 7  shows the first coil  620   a  and the second coil  620   b  so that they are not connected, the closed curves may be provided so that they are connected to the ports AC 0  to AC 2  of the transmission and reception control module  650  in common or to each other. 
     According to various embodiments of the present disclosure, the first coil  620   a  and the second coil  620   b  may be disposed at a certain interval as in state  703 . For example, the first coil  620   a  supporting the MST function may include sub coils that are provided in such a manner that a plurality of closed curves have different intervals from the same central point. The second coil  620   b  supporting the wireless power transmission and reception function may be provided so that at least one closed curve has different intervals from the central point that is different from the central point of the first coil  620   a . The first coil  620   a  and the second coil  620   b  may be provided so that there is no overlap region. In this example, one end of the first coil  620   a  and the other end of the second coil  620   b  may be connected to port AC 1  in common and may be connected to ports AC 0  and AC 2 , respectively. 
     According to various embodiments of the present disclosure, the first coil  620   a  and the second coil  620   b  may be disposed in such a manner that at least one closed curve is disposed at a certain interval from central points that are disposed at different positions as in state  705 . In this example, a closed curve that surrounds the first coil  620   a  and the second coil  620   b  may be provided. For the first coil  620   a  and the second coil  620   a , the surrounding closed curve may be connected to port AC 1  in common and closed curves having different central points may be connected to port AC 0  or AC 2 , respectively. 
       FIG. 8  is a diagram representing an example of a transmission and reception control module that uses a plurality of coils according to various embodiments of the present disclosure. 
     Referring to  FIG. 8 , a signal transmission and reception circuit  200  may include a transmission and reception control module  850 , a first coil  820   a  and a second coil  820   b  that are connected in parallel to the transmission and reception control module  850 , an MST capacitor  813  disposed between the first coil  820   a  and the transmission control module  850 , and a first capacitor  811  disposed between the second coil  820   b  and the transmission and reception control module  850 . Also, the signal transmission and reception circuit  200  may include a coil node  815  that is disposed between the first coil  820   a  and the second coil  820   b.    
     The transmission and reception control module  850  may include a signal transmission control circuit  830 , a first control circuit  835 , a second control circuit  840 , an LDO  860 , and a driver  851 . 
     The signal transmission control circuit  830  may include an upper control switch  830   a  and a lower control switch  830   b  that are connected in series, and an MST node  831  may be disposed between the upper control switch  830   a  and the lower control switch  830   b . The upper control switch  830   a  or the lower control switch  830   b  may be provided in such a manner that a plurality of switches are connected in series to execute a clamping function of an AC signal in order to prevent an overvoltage or overcurrent. For example, the upper control switch  830   a  may be disposed so that a first upper control switch H 81  and a second upper control switch H 82  are connected in series. The lower control switch  830   b  may be disposed so that a first lower control switch L 81  and a second lower control switch L 82  are connected in series. One end of the lower control switch  830   b  may be grounded and the upper end of the upper control switch  830   a  may be connected to an LDO node  832  connected to the LDO  860 . The MST node  831  may be connected to the MST capacitor  813 . The first control circuit  835  may be used for the first coil  820   a . The MST node  831  may correspond to port AC 0  as described in  FIG. 6 . 
     For the first control circuit  835 , a first front switch H 10  and a second front switch L 10  may be connected in series and a first front node  842  may be disposed between the first front switch H 10  and the second front switch L 10 . The first front node  842  may be connected to the coil  815 . The first front node  842  may correspond to port AC 1  as described in  FIG. 6 . The upper end of the first front switch H 10  may be connected to a second front node  833  to which the first control circuit  835  is connected. The lower end of the second front switch L 10  may be grounded. The above-described first control circuit  835  may be used as a common circuit for the first coil  820   a  and the second coil  820   b . For example, the first control circuit  835  may control a state when the first coil  820   a  is used and also control a state when the second coil  820   b  is used. 
     For the second control circuit  840 , a first rear switch H 20  and a second rear switch L 20  may be connected in series and a rear node  841  may be disposed between the first rear switch H 20  and the second rear switch L 20 . The rear node  841  may be connected to one end of the first capacitor  811 . The rear node  841  may correspond to port AC 2  as described in  FIG. 6 . The second control circuit  840  may be used for the second coil  820   b.    
     The LDO  860  of the transmission and reception control module  850  may be provided as a B2B type. A capacitor  801  that functions as a stabilizer may be disposed at one end Vrect of the LDO  860 , and a capacitor  802  that functions as a stabilizer may be disposed at the other end Vout of the LDO. 
     The driver  851  may execute a channel selection function. For example, the driver  851  may control at least some of switches included in the first control circuit  835  and switches included in the second control circuit  840  to enable the wireless power reception function, the wireless power transmission function and the MST function to be used. 
       FIG. 9  is a diagram representing another example of a shape of a plurality of coils according to various embodiments of the present disclosure. 
     Referring to  FIG. 9 , a first coil  820   a  has a physical characteristic that may support an MST function and may be provided in the shape of an open curve that has a rim exceeding a certain size as shown in  FIG. 9 . One end of the first coil  820   a  may be connected to the port AC 0  of a transmission and reception control module  850 , and the other end of the first coil  820   a  may be connected to the port AC 1  of the transmission and reception control module. The first coil  820   a  connected to the ports AC 0  and AC 1  may receive an MST function related signal that the transmission and reception control module  850  outputs. 
     A second coil  820   b  is disposed at a place having a different central point from the first coil  820   a  and may be provided in the shape of at least one closed curved in the first coil  820   a . One end of the second coil  820   b  may be connected to the port AC 1  of the transmission and reception control module  850  and the other end of the second coil may be connected to the port AC 2  of the transmission and reception control module  850 . The second coil  820   b  connected to the ports AC 1  and AC 2  may output a wireless power transmission related signal or receive a signal according to a wireless power reception function. 
       FIG. 10  is a diagram representing an example of an electronic device that has an independent inverter according to various embodiments of the present disclosure. 
     Referring to  FIG. 10 , an electronic device may include a control module  1060 , a transmission and reception control module  1050 , a power control unit  1040 , a first coil  1020   a , a second coil  1020   b , an MST capacitor  1013 , a first capacitor  1021 , and an MST inverter  1070 . 
     The control module  1060  and the transmission and reception control module  1050  may transmit and receive an MST function activation signal MST_EN, a wireless power transmission activation signal TX_EN, a wireless power reception activation signal RX_EN, etc. and perform corresponding control operations. Also, the control module  1060  may receive power from the power control unit  1040  and support the charging or discharging related control of the power control unit  1040 . 
     The transmission and reception control module  1050  may perform signal processing required for the control of the first coil  1020   a  and the second coil  1020   b . Such a transmission and reception control module  1050  may output a signal supplied from the power control unit  1040  in response to the control of the control module  1060  for executing the wireless power transmission function, or receive wireless power input from the outside to deliver the received power to the power control unit  1040 . According to an embodiment of the present disclosure, the transmission and reception control module  1050  may deliver a signal relating to the execution of the MST function to the MST inverter  1070 . The transmission and reception control module  1050  may include the ports AC 1  and AC 2  connected to the first coil  1020   a  and the second coil  1020   b  and include the port Vrect connected to the MST inverter  1070 . 
     The MST inverter  1070  may include at least one switch relating to the execution of the MST function. The MST inverter  1070  may have a function execution state or turn-off state according to the control of the control module  1060 . The MST inverter  1070  may switch a signal delivered by the transmission and reception control module  1050  to deliver the switched signal to the first coil  1020   a  through an MST pulse shaper filter. In this regard, the MST inverter  1070  may receive a signal from the port Vrect of the transmission and reception control module  1050  and deliver the received signal to the first coil  1020   a  via the MST capacitor  1013  through the port AC 0 . 
     One end of the first coil  1020   a  may be connected to the port AC 0  of the MST inverter  1070  through the MST capacitor  1013  and the other end of the first coil  1020   a  may be connected to the port AC 1  of the transmission and reception control module  1050 . The first coil  1020   a  connected to the ports AC 0  and AC 1  may have e.g., a characteristic for the operation of the MST function. 
     One end of the second coil  1020   b  may be connected to the port AC 1  of the transmission and reception control module  1050  in the same way as the first coil  1020   a  and the other end of the second coil  1020   b  may be connected to the port AC 2  of the transmission and reception control module  1050  via the first capacitor  1021 . The second coil  1020   b  connected to the ports AC 1  and AC 2  may have a characteristic for the operation of the wireless power transmission function. 
     The power control unit  1040  may receive power from the transmission and reception control module  1050  to deliver the received power to a battery (e.g., battery  130 ). Alternatively, the power control unit  1040  may discharge power stored in the battery in response to the control of the control module  1060  to provide power to the transmission and reception control module  1050 . Also, the power control unit  1040  may perform power supply relating to the execution of the MST function. 
       FIG. 11  is a diagram representing an example of an independent inverter and transmission and reception control module according to various embodiments of the present disclosure. 
     Referring to  FIG. 11 , a transmission and reception control module  1050  in a transmission and reception circuit may be the same or similar to the structure in  FIG. 9  except that an MST inverter  1070  is provided independently. 
     The independent MST inverter  1070  may include e.g., an upper control switch  1070   a  and a lower control switch  1070   b . The upper control switch  1070   a  and the lower control switch  1070   b  may be configured by directly connecting switches in a cascode structure. The upper control switch  1070   a  may be connected in series with a first upper control switch H 91  and a second upper control switch H 92 , and the lower control switch  1070   b  may be connected in series with a first lower control switch L 91  and a second lower control switch L 92 . According to various embodiments of the present disclosure, the upper control switch  1070   a  and the lower control switch  1070   b  may also be configured as a signal switch. The MST inverter  1070  may include an MST node  1070  that functions as port AC 0 . The MST node  1071  may be disposed between the upper control switch  1070   a  and the lower control switch  1070   b . The MST node  1071  may be connected to an MST capacitor  1013 . The upper end of the MST inverter  1070 , e.g., the upper end of the upper control switch  1070   a  may be connected to a port node  1132  disposed at the port Vrect of the transmission and reception control module  1050  of  FIG. 10 . 
     The transmission and reception control module  1050  may include a first control circuit  1110 , a second control circuit  1120 , an LDO  1130 , and a driver  1051 . 
     The first control circuit  1110  may include a first front switch H 11 , a second front switch L 11 , and a first front node  1111  between the first front switch H 11  and the second front switch L 11 . The first front node  1111  may function as port AC 1 . The first front node  1111  may be connected to a coil node  1015  that is disposed between a first coil  1020   a  and a second coil  1020   b . The first control circuit  1110  may be a common circuit that is used in common for the operation of the first coil  1020   a  and the operation of the second coil  1020   b . A second front node  1112  may be disposed at the upper end of the first front switch H 11  and the second front node  1112  may be connected to an LDO node  1131  that is provided at one end of the LDO  1130 . 
     The second control circuit  1120  may include a first rear switch H 21 , a second rear switch L 21 , and a rear node  1121 . The rear node  1121  may function as port AC 2 . The rear node  1121  may be connected to a first capacitor  1021 . A capacitor that functions as a stabilizer may be disposed at the input and output of the transmission and reception control module  1050 , e.g., Vrect and Vout. 
     The above-described coils may be disposed on e.g., the rear surface of an electronic device or the battery cover of the electronic device. When the coil is disposed at the battery cover, an electrical contact is provided at one side of the battery cover and a corresponding electrical contact may be electrically connected to the main PCB of the electronic device corresponding to the installation of the battery cover. 
     According to various embodiments of the present disclosure, control switches mentioned in the signal transmission and reception circuit  200  may be N type MOSFET switches. Each control switch may be turned on or off according to the control of a driver or a control module  1060  to perform signal conversion (e.g., DC conversion or AC conversion) or delivery. 
     As described above, according to various embodiments of the present disclosure, an electronic device may include a signal transmission and reception circuit that may support a wireless power transmission function and the signal transmission function of an MST system, a wireless power reception function. For such a signal transmission and reception circuit, an NMOS synchronous rectifier having a wireless power receiver function and an NMOS full bridge inverter having wireless power transmitter and MST transmitter functions may be implemented as the same NMOS transistor, and it is possible to include a single coil (or a plurality of coils) as a transmission and reception coil. Such a signal transmission and reception circuit may operate in a wireless power reception state, in a wireless power transmission state, or in an MST system transmission state by using a state (or mode) switch. 
     As described above, according to various embodiments of the present disclosure, the signal transmission and reception circuit according to an embodiment may include a coil receiving power wirelessly supplied from the outside or wirelessly outputting a specific signal, a transmission and reception control module including a switching circuit that is connected to the coil to rectify the wirelessly supplied power or convert a signal to be output, and a driver that controls the switching state of the switching circuit; and a filter configured to convert, the signal to be output, into the specific signal. 
     According to various embodiments of the present disclosure, the transmission and reception control module may further include at least one of an LDO configured to deliver the received wireless power to a power control unit or deliver a signal supplied from the power control unit to the switching circuit, or a second state switch that is connected to the switching circuit to control a state of any one of a wireless power reception function or a wireless power transmission function. 
     Various embodiments of the present disclosure enhances a user convenience to be achieved by simultaneously implementing a WPT technology and an MST technology. 
     Also, various embodiments of the present disclosure may minimize and optimize a mounting area by implementing three functions through a simplified circuit. 
     Also, various embodiments of the present disclosure may provide many functions at a relatively low cost by implementing three functions through a simplified circuit. 
     The term “module” used herein may represent, for example, a unit including one of hardware, software and firmware or a combination thereof. The term “module” may be interchangeably used with the terms “unit”, “logic”, “logical block”, “component” and “circuit”. The “module” may be a minimum unit of an integrated component or may be a part thereof. The “module” may be a minimum unit for performing one or more functions or a part thereof. The “module” may be implemented mechanically or electronically. For example, the “module” may include at least one of an application-specific integrated circuit (ASIC) chip, a field-programmable gate array (FPGA), and a programmable-logic device for performing some operations, which are known or will be developed. 
     At least a part of devices (e.g., modules or functions thereof) or methods (e.g., operations) according to various embodiments of the present disclosure may be implemented as instructions stored in a computer-readable storage medium in the form of a programming module. 
     The module or program module according to various embodiments of the present disclosure may include at least one of the above-mentioned components, or some components may be omitted or other additional components may be added. Operations performed by the module, the program module or other components according to various embodiments of the present disclosure may be performed in a sequential, parallel, iterative or heuristic way. Furthermore, some operations may be performed in another order or may be omitted, or other operations may be added. 
     While the present disclosure has been shown and described with reference to various embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents.