Abstract:
A multi-mode output charger is to support different kinds of batteries for the mobile telecommunication facility. It comprises a charger and a charge unit. Users can choose different charging voltages and charging currents with a voltage and current regulating switch of the charger. Therefore, the charger can support different voltage and current combinations for batteries. And the charge unit has several kinds of charge connecting set for different brand batteries. Also, the charge unit can extend to engage with different mode charge connecting set for enlarging its supporting range.

Description:
FIELD OF THE INVENTION 
     The present invention relates to a multi-output mode charger, and more specifically to support different kinds of batteries for multi-model mobile telecommunication facility and provide different charging voltage and currents with a voltage and current regulating switch. 
     BACKGROUND OF THE INVENTION 
     Mobile telecommunication facility has become an indispensable part of our daily life that different kinds of its application are widespread used for indoor and outdoor activities, vehicles, and mountain areas. However, its durability and functionality are limited by its battery capacity. In fact the battery has-become a key point among those limitations. 
     Charging is a necessary process for mobile telecommunication facilities. For example, every family member has his own wired or non-wired equipments. However, batteries with different models and brands have different charging way of their own voltage and current requirements. This is one of the reasons that one is always not enough for a family usage. The result is a lot of money and resources wasted. In addition, these facilities can cause heavy contamination of our environment for their material can not be well decomposed. 
     To solve these problems, a multi-output mode charger is invented to support different kinds of batteries and power systems of different countries. 
     SUMMARY OF THE INVENTION 
     The primary object of the present invention is to provide a multi-output mode charger which may support different kinds of voltage and current requirements. A voltage and current regulating switch which can provide different voltages and currents for different batteries of multi-model and brands in order to avoid the waste of resources and protect the environment. 
     The other object of the present invention is to provide a multi-output mode charger which employs a high-voltage end switch, a low-voltage end switch and a switch control circuit in its DC (direct current) power charge transformer section. That can reduce the weight and dimensions of the charger and makes this invention be portable. 
     The further object of the present invention is to provide a multi-output mode charger, which can support different kinds of charge connect set. Therefore, it can be applied to different kinds of batteries for multi-model and brands. 
     The further object of the present invention is to provide a multi-output mode charger which has a voltage transforming circuit and a current transforming circuit to sample the voltage and current output of the multi-output mode charger and feedback them to microprocessor. Those give more information for the microprocessor to refine the controlling on the multi-output mode charger, protect the batteries, and enforce the transforming efficiency. 
     Other features and advantages of the invention will become better understood from the following description of the invention which refers to the accompanying drawings. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a system block circuit diagram of the present invention. 
     FIG. 2 is a perspective view of the charge unit of the present invention. 
     FIG. 3 is an embodiment of the charge unit of the present invention. 
     FIG. 4 is another embodiment of the charge unit of the present invention. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to FIG. 1, which is a system circuit diagram of the present invention. The charger  100  has an adopter  10  which is designed to support any kind of indoor power system, 85V˜265V. And a high-voltage rectifying circuit  11  rectifies the indoor power to DC high voltage output A that is wired to the primary end of a high-frequency transformer  12 . The other end, secondary end, connects to a high-voltage end switch  13  which comprises bipolar transistors and gates., and “ON” and “OFF” for the high-voltage end switch  13  is controlled by a high-voltage end switch control circuit  14  with high frequency. The secondary end of the high-frequency transformer  12  outputs an AC (alternating current) low voltage power and connects to a low-voltage rectifying circuit  15 . The low-voltage rectifying circuit  15  outputs a DC voltage C in a specific tolerances, 12V˜14V. 
     The output of the low-voltage rectifying circuit  15  connects to a DC input socket  16 . The DC input socket  16  is designed to support many kinds of cigar-lighters of cars. The DC input socket  16  is only used in car, so it is impossible to have the DC input socket  16 &#39;s output and the DC voltage C at the same time. The DC voltage C or the output of the DC input socket  16  connects to a voltage detecting circuit  17  which detects the DC voltage C (or the DC input socket  16 &#39;s output) whether it locates in the specific tolerance (12V˜14V). And the voltage detecting circuit  17  controls a photo coupler  18  to drive the high-voltage end switch control circuit  14 . Then, the high-voltage end switch control circuit  14  can regulate the “ON” and “OFF” cycle of high-voltage end switch  13 . The DC voltage C can be hold in the specific tolerance. 
     The DC voltage C as the output of the low-voltage rectifying circuit  15  or the output of the DC input socket  16  are further connected to a low-voltage end switch  20 . The low-voltage end switch  20  comprises bipolar transistors and gates that can work in low-voltage switch state. The output connects to a filtering and anti-inversing charging circuit  21 . The filtering and anti-inversing charging circuit  21  outputs a normal power D to charge unit  200 . A low-voltage switch control circuit  22  with high frequency controls the low-voltage end switch  20 . A voltage comparator  23  and a current comparator  24  control the low-voltage switch control circuit  22  to decide the low-voltage end switch  20 &#39;s “ON” and “OFF” cycle. Therefore, a constant voltage output D is produced and lots of current selections can be chosen. 
     The voltage comparator  23 , which compares a output of the filtering and anti-inversing charging circuit  21  with that of a first reference voltage circuit  25 , outputs a control signal with high frequency. The control signal is to dominate the low-voltage switch control circuit  22  and regulates the “ON” and “OFF” cycle. This can finest maintain a constant voltage output D. 
     The current comparator  24  compares a output of a current detecting circuit  26  with that of a second reference voltage circuit  27  to output a control signal. The signal controls the low-voltage switch control circuit  22  with high frequency and regulates the “ON” and “OFF” cycle. This approaches the finest control for the low-voltage switch control circuit  22 . Because the detecting circuit  26  directly detects and feeds back the current of the charge connect set  210  of the charge unit  200 . This will refine the charge current control. 
     A microprocessor  30  is the control center of the charger  100 . The microprocessor  30  receives a control signal or numeric value from a voltage and current regulating switch  31 . According to the signal or numeric value, the microprocessor  30  sets the voltage and current for the charge connect set  210  of the charge unit  200 . The microprocessor  30  can output a normal charge current and voltage for the charged battery, and controls the first reference voltage circuit  25  to output a reference voltage for the voltage comparator  23 . And, the microprocessor  30  controls the second reference voltage circuit  27  to output a reference current for the current comparator  24 . The reference current is the reference to compare with the feed back current from the detecting circuit  26 . 
     The microprocessor  30  also recieves a charging voltage fed back from the charge connect set  210  of the charge unit  200 , since a voltage transforming circuit  32  and a current transforming circuit  33  sample charging voltages and charging currents from the charge connect set  210  and transform them to be reference signals or numeric values which are input to the microprocessor  30  in order to control charging voltage and charging current and protect batteries thereof. 
     The microprocessor  30  also controls a discharge circuit  34 . It can identify whether a charged battery is a Ni—H or Ni—Cd battery. If the charged battery is a Ni—H or Ni—Cd battery, discharge circuit  34  will be triggered by the microprocessor  30  to eliminate the memory effect. Users also can push a discharge button  35  to trigger the same step. That can always keep the Ni—H or Ni—Cd battery in good conditions. 
     The microprocessor  30  can also display the charging and discharging states by a display unit  36 . And the display unit  36  can be emitting diodes, emitting diode array or LCD (liquid crystal display) to express the charging and discharging. 
     The microprocessor  30  also controls a buzzer  37  which launches different tones or sounds for different charging or discharging states. Therefore, users can identify the states without seeing the display unit  36 . 
     Referring to FIG. 2, the multi-output mode charge of present invention further includes a charge unit  200  which has lots of different charge connect set  210 . The charge connect set  210  can support lots kinds of brands and models of telecommunication batteries. Also, the charge connect set  210  is wired to the output of the charger  100  with a connect line  220  and a connector  230 . Then, the charger  100  outputs a charge power for the charged battery. Referring to FIG. 3, it is another embodiment of the present invention of charge unit  200  which has a base  240 . The base  240  connects to the output of the charger  100  by the connect line  220  and the connector  230 . And, several connect ends  241  are set on the base  240  which can support many kinds of brands and models of charge connect set  210 . Therefore, users can use this facility flexibly and expand the connection. 
     Referring to FIG. 4, it is another embodiment of the present invention of charge unit  200 . The difference between this embodiment and the embodiment shown in FIG. 3 is that the charge connect box  250  has a base  240  inside it (not shown in FIG.  4 ). The charge connect box can collect any brands or models of charge connect set  210 . That will be more convenient for users to collect and access them. 
     Although this invention has been described with a certain degree of particularity, it should be understood that the present disclosure has been made by the way of the preferred embodiment only and that numerous changes in the detailed construction and combination as well as arrangement of parts may be restored to without departing from the spirit or scope of the invention as hereinafter set forth.