CN204649875U

CN204649875U - A kind of pick-up unit for wireless charging receiver

Info

Publication number: CN204649875U
Application number: CN201520396883.2U
Authority: CN
Inventors: 林谷
Original assignee: Ningbo Liketek Information Technology Co Ltd
Current assignee: Ningbo Liketek Information Technology Co Ltd
Priority date: 2015-06-10
Filing date: 2015-06-10
Publication date: 2015-09-16
Anticipated expiration: 2025-06-10

Abstract

A kind of pick-up unit for wireless charging receiver, feature comprises charge management module, discharge and recharge selector switch, test battery, charge and discharge protecting module, pull-up resistor, detection display module and timing module, charge management module is connected with wireless charging receiver by charge switch, charge management module is connected with the stationary contact end of discharge and recharge selector switch and one end of pull-up resistor respectively, the charging end of discharge and recharge selector switch, charge and discharge protecting module, detection display module and timing module are connected with test battery respectively, the discharge end of discharge and recharge selector switch is connected with the earth terminal of pull-up resistor, advantage be charge management module for controlling charge mode, charge and discharge protecting module be used for test battery is protected, the magnitude of voltage of test battery when charge or discharge and current value are detected by detection display module and can show, and for user of service provides reference data, thus make the charging performance of the wireless charging receiver of different model and evaluating accurately.

Description

A kind of pick-up unit for wireless charging receiver

Technical field

The utility model relates to a kind of pick-up unit of charger, especially a kind of pick-up unit for wireless charging receiver.

Background technology

Wireless charging technology is the charging technique of a kind of advanced person; it comprises wireless charging transmitter and wireless charging receiver; how testing the performance of wireless charging receiver is a more difficult problem; because it relates to a large amount of chargings, discharge test; be included in the monitoring of voltage, electric current, overvoltage and overcurrent protection and charge efficiency statistics etc. in charge and discharge process, but prior art seldom has directly when charging to wireless charging receiver performance own to test.The utility model being CN201320793004.0 as China Patent No. discloses a kind of battery charger-discharger, which describe a kind of battery charger-discharger, but it is for operating the performance of battery when charging and test, cannot the serviceability of wireless charging receiver originally in time charging be operated and be tested; As the China Patent No. utility model that is CN201320793005.5 disclose a kind of can the battery charger-discharger of timing, also only for carrying out the charging performance of charging operations and detection battery itself to battery, cannot directly the charging performance of the wireless charging receiver of different model be operated and be tested.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of pick-up unit for wireless charging receiver, and user can make evaluating accurately the performance of the wireless charging receiver of each different model when charging according to the data detected.

The utility model solves the problems of the technologies described above adopted technical scheme: a kind of pick-up unit for wireless charging receiver, comprise charge management module, discharge and recharge selector switch, test battery, charge and discharge protecting module, pull-up resistor, detection display module and timing module, described charge management module is connected with wireless charging receiver by charge switch, described charge management module is connected with the stationary contact end of described discharge and recharge selector switch and one end of described pull-up resistor respectively, the charging end of described discharge and recharge selector switch, described charge and discharge protecting module, described detection display module and described timing module are connected with described test battery respectively, the discharge end of described discharge and recharge selector switch is connected with the earth terminal of described pull-up resistor, described charge management module is used for controlling charge mode according to the kind of described test battery, described charge and discharge protecting module be used for described test battery overcharge or mistake put overcurrent or short-circuit condition time protect, described detection display module for detect and display circuit in voltage and current, described timing module is used for the different charged states of described test battery are carried out to timing and shown.

Described test battery is lithium battery, described charge management module comprises boost module, charging module and Charge Management peripheral circuit module, described detection display module comprises the first voltage monitor, first electric current monitor and electric current and voltage monitoring module, described electric current and voltage monitoring module is for monitoring and magnitude of voltage when charge or discharge of test battery described in showing and current value, described charging module comprises temperature signal comparer, 3rd comparer, 4th comparer, 5th comparer, 6th comparer, 7th comparer, 8th comparer, 9th comparer, 4th diode, 5th diode, 6th diode, 7th diode, 5th NMOS tube, 6th NMOS tube, first PMOS, second PMOS, 3rd PMOS, two or two input nand gate, first constant current source, second constant current source, alternative gate, 5th resistance, 8th resistance, 9th resistance, tenth resistance and the 11 resistance, described boost module comprises voltage limiter, one or two input nand gate, one or two input and door, for generation of the oscillating circuit of square-wave signal and sawtooth signal, synchronous rs flip-flop, first phase inverter, 7th NMOS tube, crystal oscillator, first comparer, second comparer, first resistance, 6th resistance, 7th resistance, first electric capacity and the second electric capacity, described Charge Management peripheral circuit module comprises the 12 resistance, 13 resistance, 14 resistance, 15 resistance, first inductance, 8th electric capacity, 9th electric capacity, tenth electric capacity, 11 electric capacity, 12 electric capacity, 13 electric capacity, first light emitting diode, second light emitting diode, second voltage stabilizing diode and the three or two input nand gate, the voltage signal that the electrode input end of described temperature signal comparer exports for accessing the first temperature sensor of responding to the fixed temperature of 120 DEG C, the negative input of described temperature signal comparer is for accessing the voltage signal to the second temperature sensor output that the temperature of wireless receiver is responded to, the output terminal of described temperature signal comparer is connected with the positive pole of the 4th described diode, the negative pole of the 4th described diode respectively with the negative pole of the 5th described diode, the negative pole of the 6th described diode, the negative pole of the 7th described diode, the grid of the second described PMOS, the grid of the 3rd described PMOS and the input end of the first described constant current source are connected, the output head grounding of the first described constant current source, the positive pole of the 5th described diode is connected with the output terminal of the 3rd described comparer, the negative input of the 3rd described comparer is connected with the stationary contact of described alternative gate, the gating control end of described alternative gate is connected with the first input end of the two or two described input nand gate and the output terminal of the 6th described comparer respectively, the electrode input end of the 3rd described comparer respectively with the drain electrode of the first described PMOS, the negative input of the 5th described comparer, the output terminal of the second described constant current source and one end of the 13 described resistance connect, first moving contact of described alternative gate respectively with one end of the tenth described resistance, one end of the 11 described resistance and outside 1V voltage input end connect, second moving contact of described alternative gate respectively with the electrode input end of the 5th described comparer, the other end of the 11 described resistance, one end of the 5th described resistance and outside 0.1V voltage input end connect, the other end ground connection of the 5th described resistance, second input end of the two or two described input nand gate is connected with the output terminal of the 5th described comparer, the output terminal of the two or two described input nand gate respectively with the grid of the 5th described NMOS tube, the grid of the 6th described NMOS tube, the negative pole of the first described light emitting diode, one end of the 14 described resistance and the first input end of described timing module connect, the source ground of the 6th described NMOS tube, the drain electrode of the 6th described NMOS tube respectively with the negative pole of the second described light emitting diode, one end of the 15 described resistance, the first input end of the three or two described input nand gate and the second input end of the three or two described input nand gate connect, the described output terminal of the three or two input nand gate is connected with the second input end of described timing module, the positive pole of the 7th described diode is connected with the output terminal of the 9th described comparer, the positive pole of the 6th described diode is connected with the output terminal of the 8th described comparer, the source electrode of the 3rd described PMOS is used for being connected with the positive terminal of wireless charging receiver, the source electrode of the 3rd described PMOS respectively with the source electrode of the second described PMOS, one end of the 8th described electric capacity, one end of the 12 described resistance, the other end of the 14 described resistance, the other end of the 15 described resistance, the positive terminal of the first described voltage monitor and the input end of the second described constant current source connect, the other end of the 8th described electric capacity and the equal ground connection of negative pole end of the first described voltage monitor, the other end of the 12 described resistance is connected with the positive pole of the first described light emitting diode and the positive pole of the second described light emitting diode respectively, the drain electrode of the 3rd described PMOS is connected with the negative input of the 7th described comparer and the source electrode of the first described PMOS respectively, the grid of the first described PMOS is connected with the output terminal of the 7th described comparer, the electrode input end of the 7th described comparer respectively with the drain electrode of the second described PMOS, one end of the 8th described resistance, the electrode input end of the 4th described comparer, the negative input of the 6th described comparer, the electrode input end of the 9th described comparer, the charging end of described discharge and recharge selector switch, one end of the 11 described electric capacity, one end of the 12 described electric capacity, one end of the 13 described electric capacity, described charge and discharge protecting module, one end of described voltage limiter and the positive pole of described test battery connect, the electrode input end of the 8th described comparer is connected with the other end of the 8th described resistance and one end of the 9th described resistance respectively, the negative input of the 8th described comparer is connected with the other end of outside first reference voltage input terminal and the tenth described resistance respectively, the negative input of the 4th described comparer is connected with the electrode input end of the 6th described comparer and outside 2.9V voltage input end respectively, the negative input ground connection of the 9th described comparer, the other end of the 9th described resistance is connected with the drain electrode of the 5th described NMOS tube, the source ground of the 5th described NMOS tube, the other end of described voltage limiter respectively with the drain electrode of the 7th described NMOS tube, one end of the first described inductance and the positive pole of the second described voltage stabilizing diode connect, the source ground of the 7th described NMOS tube, the grid of the 7th described NMOS tube is connected with the output terminal of the one or two described input nand gate, the first input end of the one or two described input nand gate inputs with the described the 1 respectively and is connected with the square-wave signal output terminal of the first input end of door and described oscillating circuit, described the second input end of the one or two input nand gate is connected with the positive signal output part of described synchronous rs flip-flop, the end and the described the 1 that sets to 0 of described synchronous rs flip-flop inputs and is connected with the output terminal of door, 1 end of putting of described synchronous rs flip-flop is connected with the input end of the first described phase inverter and the output terminal of the first described comparer respectively, the output terminal and the described the 1 of the first described phase inverter inputs and is connected with the second input end of door, the clock pulse input terminal of described synchronous rs flip-flop is connected with one end of described crystal oscillator, the other end of described crystal oscillator is connected with the output terminal of the 4th described comparer, the sawtooth signal output terminal of described oscillating circuit is connected with the electrode input end of the first described comparer, the negative input of the first described comparer respectively with the output terminal of the second described comparer, one end of the first described electric capacity and one end of the first described resistance connect, the electrode input end of the second described comparer is connected with outside second reference voltage input terminal, the negative input of the second described comparer respectively with the other end of the first described electric capacity, one end of the second described electric capacity, one end of the 7th described resistance and one end of the 6th described resistance connect, the other end of the first described resistance is connected with the other end of the second described electric capacity, the other end ground connection of the 6th described resistance, the other end of the 7th described resistance respectively with one end of the 9th described electric capacity, one end of the tenth described electric capacity, the negative pole of the second described voltage stabilizing diode and one end of described pull-up resistor connect, the other end of the 9th described electric capacity and the equal ground connection of the other end of the tenth described electric capacity, the other end of described pull-up resistor respectively with the other end of the 11 described electric capacity, the other end of the 12 described electric capacity, the other end of the 13 described electric capacity, the other end of the 13 described resistance, the positive terminal of the first described electric current monitor and the earth terminal of described charge and discharge protecting module connect, the negative pole end ground connection of the first described electric current monitor, the negative pole of the first described electric current monitor is used for being connected with the negative pole end of wireless charging receiver, the other end of the first described inductance is connected with the stationary contact end of described discharge and recharge selector switch, the discharge end ground connection of described discharge and recharge selector switch.

Described charge and discharge protecting module comprises the tenth comparer, 11 comparer, 12 comparer, 13 comparer, 14 comparer, first rheostat, second rheostat, 14 electric capacity, 16 resistance, 17 resistance, 19 resistance, 20 resistance, first voltage source, second voltage source, tertiary voltage source, 4th voltage source, first NMOS tube, second NMOS tube, three or two input and door and three value and gate, described first rheostatic one end respectively with one end of the 17 described resistance, one end of the 14 described electric capacity and described second rheostatic one end connect, the described first rheostatic other end is connected with one end of the 19 described resistance and the electrode input end of the tenth described comparer respectively, the other end ground connection of the 19 described resistance, the other end of the 19 described resistance is connected with one end of the 20 described resistance and the negative pole of the first described voltage source respectively, the described second rheostatic other end is connected with the other end of the 20 described resistance and the electrode input end of the 11 described comparer respectively, the positive pole of the first described voltage source is connected with the negative input of the 11 described comparer and the negative input of the tenth described comparer respectively, the output terminal and the described the 32 of the tenth described comparer inputs and is connected with the first input end of door, the output terminal and the described the 32 of the 11 described comparer inputs and is connected with the second input end of door, the three or two described input is connected with the grid of the first described NMOS tube with the output terminal of door, the negative input of the 12 described comparer respectively with the negative input of the 13 described comparer, the negative input of the 14 described comparer and one end of the 16 described resistance connect, the other end of the 16 described resistance is connected with the other end of the 13 described resistance and the source electrode of the first described NMOS tube respectively, the other end of the 17 described resistance is connected with the positive pole of described test battery and one end of the 11 described electric capacity respectively, the negative pole of described test battery is connected with the other end of the 14 described electric capacity and the source electrode of the second described NMOS tube respectively, the drain electrode of the first described NMOS tube is connected with the drain electrode of the second described NMOS tube, the positive pole of the second described voltage source is connected with the electrode input end of the 12 described comparer, the minus earth of the second described voltage source, the positive pole in described tertiary voltage source is connected with the electrode input end of the 13 described comparer, the minus earth in described tertiary voltage source, the positive pole of the 4th described voltage source is connected with the positive pole of the 14 described comparer, the minus earth of the 4th described voltage source, the output terminal of the 12 described comparer is connected with the first input end of described three value and gate, the described output terminal of the 13 comparer is connected with the second input end of described three value and gate, the output terminal of the 14 described comparer is connected with the 3rd input end of described three value and gate, the output terminal of described three value and gate is connected with the grid of the second described NMOS tube.

Described timing module comprises the timer that model is YM5135-CT-H, two or two input and door, reset button switch, 15 electric capacity and the 18 resistance, the two or two described input is connected with one end of the 14 described resistance with the first input end of door, the two or two described input is connected with the output terminal of the three or two described input nand gate with the second input end of door, the two or two described input is connected with the timing end of described timer with the output terminal of door, the reset terminal of described timer respectively with one end of described reset button switch, one end of the 15 described electric capacity and one end of the 18 described resistance connect, the other end of the 15 described electric capacity is connected with the other end of described reset button switch and the positive terminal of wireless charging receiver respectively, the other end ground connection of the 18 described resistance.

Monitoring data transmission module is provided with between described electric current and voltage monitoring module and wireless charging receiver, described monitoring data transmission module comprises the first analog-digital converter, second analog-digital converter, quantity of electric charge testing circuit, one-out-three gating switch and serial ports control linkage module, described electric current and voltage monitoring module is provided with monitor current signal output part and monitoring voltage signal output part, described monitor current signal output part is connected with the input end of the first described analog-digital converter, described monitoring voltage signal output part is connected with the input end of the second described analog-digital converter, the output terminal of the first described analog-digital converter is connected with the first moving contact of described one-out-three gating switch, the output terminal of the second described analog-digital converter is connected with the second moving contact of described one-out-three gating switch, the electrode input end of described quantity of electric charge testing circuit is connected with the positive pole of described test battery, the negative input of described quantity of electric charge testing circuit is connected with the negative pole of described test battery, the output terminal of described quantity of electric charge testing circuit is connected with the 3rd moving contact of described one-out-three gating switch, the stationary contact of described one-out-three gating switch is connected with the input end of described serial ports control linkage module, the output terminal of described serial ports control linkage module is connected with the data communication interface of wireless charging receiver.Magnitude of voltage when being charged by electric current and voltage monitoring module collecting test battery and current value, quantity of electric charge when being charged by quantity of electric charge testing circuit collecting test battery, through serial ports control linkage module by these Parameter transfer to wireless charging receiver, the information collected is sent to wireless charging transmitter by QI agreement by wireless charging receiver, wireless charging transmitter carrys out real-time adjustment emissive power according to the parameter received, and the efficiency of charging is improved greatly.

Described quantity of electric charge testing circuit comprises the 16 electric capacity, 17 electric capacity, 18 electric capacity, 21 resistance, 22 resistance, 23 resistance, 24 resistance, 25 resistance, 15 comparer, PNP transistor, 3rd analog-digital converter and totalizer, the positive pole of described test battery respectively with one end of the 16 described electric capacity, one end of the 17 described electric capacity and one end of the 22 described resistance connect, the negative pole of described test battery respectively with the other end of the 16 described electric capacity, one end of the 18 described electric capacity and one end of the 23 described resistance connect, the other end of the 17 described electric capacity and the equal ground connection of the other end of the 18 described electric capacity, the other end of the 22 described resistance is connected with one end of the 24 described resistance and one end of the 21 described resistance respectively, the other end ground connection of the 23 described resistance, the other end of the 23 described resistance is connected with the other end of the 21 described resistance and the electrode input end of the 15 described comparer respectively, the other end of the 24 described resistance is connected with the described negative input of the 15 comparer and the emitter of described PNP transistor respectively, the output terminal of the 15 described comparer is connected with the base stage of described PNP transistor, the collector of described PNP transistor is connected with one end of the 25 described resistance and the input end of the 3rd described analog-digital converter respectively, the other end ground connection of the 25 described resistance, the output terminal of the 3rd described analog-digital converter is connected with the input end of described totalizer, the output terminal of described totalizer is connected with the 3rd moving contact of described one-out-three gating switch.By the voltage at lasting detection test battery two ends, the digital quantity of N position is converted into afterwards by the 3rd analog-digital converter, Computing Principle due to the test battery quantity of electric charge is exactly the time integral of the convection current electric current of battery after tested, changing discrete case into is exactly accumulated time to this electric current, so its voltage adds up through totalizer by the digital quantity after the 3rd analog-digital converter conversion, obtain quantity of electric charge consumption figures; When test battery discharges, deduct by the total volume of test battery the residual capacity that quantity of electric charge consumption figures just obtains test battery; When testing battery charging, charge volume is exactly that residual capacity adds and detects by the quantity of electric charge testing circuit quantity of electric charge charge value obtained.

Compared with prior art, the utility model has the advantage of when the stationary contact end of discharge and recharge selector switch is communicated with charging end, enter charge mode, timing module starts timing, circuit starts to charge to test battery simultaneously, by the time during charging complete, stop timing by timing module and obtain total charging time, the result that timing module obtains may be displayed in the LED display or LCD display that are connected with timing module, using as the reference data evaluated the charging rate of wireless charging receiver; Charge management module is used for controlling charge mode according to the kind of test battery, charge and discharge protecting module be used for test battery overcharge mistake is put or overcurrent or short-circuit condition time protect; When the stationary contact end of discharge and recharge selector switch is communicated with discharge end, enter discharge mode, now circuit starts to discharge to test battery; The magnitude of voltage of test battery when charge or discharge and current value are detected by detection display module and obtain, and show by LED display or LCD display, for user of service provides reference data when the Performance Detection to wireless charging receiver, thus the charging performance of the wireless charging receiver of each different model is made evaluate accurately.

Accompanying drawing explanation

Fig. 1 is circuit structure block diagram of the present utility model;

Fig. 2 is integrated circuit structural representation of the present utility model;

Fig. 3 is the electrical block diagram of charging module in the utility model;

Fig. 4 is the electrical block diagram of boost module in the utility model;

Fig. 5 is the electrical block diagram of charge and discharge protecting module in the utility model;

Fig. 6 is the electrical block diagram of timing module in the utility model;

Fig. 7 is the structured flowchart of monitoring data transmission module in the utility model;

Fig. 8 is the electrical block diagram of quantity of electric charge testing circuit in Fig. 7.

Embodiment

Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.

As shown in Figure 1, a kind of pick-up unit for wireless charging receiver, comprise charge management module 1, discharge and recharge selector switch J7, test battery BAT, charge and discharge protecting module 3, pull-up resistor Rf, detection display module 4 and timing module 5, charge management module 1 is connected with wireless charging receiver by charge switch P1, charge management module 1 connects with the stationary contact end of discharge and recharge selector switch J7 and one end of pull-up resistor Rf respectively, the charging end of discharge and recharge selector switch J7, charge and discharge protecting module 3, detection display module 4 and timing module 5 are connected with test battery BAT respectively, the discharge end of discharge and recharge selector switch J7 is connected with the earth terminal of pull-up resistor Rf, charge management module 1 controls charge mode for the kind according to test battery BAT, charge and discharge protecting module 3 for test battery BAT overcharge or cross put overcurrent or short-circuit condition time protect, detection display module 4 for detect and display circuit in voltage and current, timing module 5 is for carrying out timing to the different charged states of test battery BAT and show.

As Fig. 2, shown in Fig. 3 and Fig. 4, test battery BAT is lithium battery, and charge management module 1 comprises boost module, charging module and Charge Management peripheral circuit module, detection display module 4 comprises the first voltage monitor U1, first electric current monitor U2 and electric current and voltage monitoring module U3, electric current and voltage monitoring module U3 are for monitoring and showing the magnitude of voltage of test battery BAT when charge or discharge and current value, and charging module comprises temperature signal comparer T1, 3rd comparer A3, 4th comparer A4, 5th comparer A5, 6th comparer A6, 7th comparer A7, 8th comparer A8, 9th comparer A9, 4th diode D4, 5th diode D5, 6th diode D6, 7th diode D7, 5th NMOS tube N5, 6th NMOS tube N6, first PMOS P1, second PMOS P2, 3rd PMOS P3, two or two input nand gate L02, first constant current source I01, second constant current source I02, alternative gate SW01, 5th resistance R5, 8th resistance R8, 9th resistance R9, tenth resistance R10 and the 11 resistance R11, boost module comprises voltage limiter X01, one or two input nand gate L01, one or two input and door L03, for generation of the oscillating circuit G1 of square-wave signal and sawtooth signal, synchronous rs flip-flop Q01, first phase inverter INV1, 7th NMOS tube N7, crystal oscillator OSC, first comparer A1, second comparer A2, first resistance R1, 6th resistance R6, 7th resistance R7, first electric capacity C1 and the second electric capacity C2, Charge Management peripheral circuit module comprises the 12 resistance R12, 13 resistance R13, 14 resistance R14, 15 resistance R15, first inductance L 1, 8th electric capacity C8, 9th electric capacity C9, tenth electric capacity C10, 11 electric capacity C11, 12 electric capacity C12, 13 electric capacity C13, first LED 1, second LED 2, second voltage stabilizing diode ZD2 and the three or two input nand gate L04, the voltage signal that the electrode input end of temperature signal comparer T1 exports for accessing the first temperature sensor of responding to the fixed temperature of 120 DEG C, the negative input of temperature signal comparer T1 is for accessing the voltage signal to the second temperature sensor output that the temperature of wireless receiver is responded to, the output terminal of temperature signal comparer T1 is connected with the positive pole of the 4th diode D4, the negative pole of the 4th diode D4 respectively with the negative pole of the 5th diode D5, the negative pole of the 6th diode D6, the negative pole of the 7th diode D7, the grid of the second PMOS P2, the grid of the 3rd PMOS P3 and the input end of the first constant current source I01 are connected, the output head grounding of the first constant current source I01, the positive pole of the 5th diode D5 is connected with the output terminal of the 3rd comparer A3, the negative input of the 3rd comparer A3 is connected with the stationary contact of alternative gate SW01, the gating control end of alternative gate SW01 is connected with the first input end of the two or two input nand gate L02 and the output terminal of the 6th comparer A6 respectively, the electrode input end of the 3rd comparer A3 respectively with the drain electrode of the first PMOS P1, the negative input of the 5th comparer A5, one end of the output terminal of the second constant current source I02 and the 13 resistance R13 connects, first moving contact of alternative gate SW01 respectively with one end of the tenth resistance R10, one end of 11 resistance R11 and outside 1V voltage input end connect, second moving contact of alternative gate SW01 respectively with the electrode input end of the 5th comparer A5, the other end of the 11 resistance R11, one end of 5th resistance R5 and outside 0.1V voltage input end connect, the other end ground connection of the 5th resistance R5, second input end of the two or two input nand gate L02 is connected with the output terminal of the 5th comparer A5, the output terminal of the two or two input nand gate L02 respectively with the grid of the 5th NMOS tube N5, the grid of the 6th NMOS tube N6, the negative pole of the first LED 1, the first input end of one end of the 14 resistance R14 and timing module 5 connects, the source ground of the 6th NMOS tube N6, the drain electrode of the 6th NMOS tube N6 respectively with the negative pole of the second LED 2, one end of 15 resistance R15, the first input end of the three or two input nand gate L04 and second input end of the three or two input nand gate L04 connect, the output terminal of the three or two input nand gate L04 is connected with the second input end of timing module 5, the positive pole of the 7th diode D7 is connected with the output terminal of the 9th comparer A9, the positive pole of the 6th diode D6 is connected with the output terminal of the 8th comparer A8, the source electrode of the 3rd PMOS P3 is used for being connected with the positive terminal of wireless charging receiver, the source electrode of the 3rd PMOS P3 respectively with the source electrode of the second PMOS P2, one end of 8th electric capacity C8, one end of 12 resistance R12, the other end of the 14 resistance R14, the other end of the 15 resistance R15, the positive terminal of the first voltage monitor U1 and the input end of the second constant current source I02 connect, the other end of the 8th electric capacity C8 and the equal ground connection of negative pole end of the first voltage monitor U1, the other end of the 12 resistance R12 is connected with the positive pole of the first LED 1 and the positive pole of the second LED 2 respectively, the drain electrode of the 3rd PMOS P3 is connected with the negative input of the 7th comparer A7 and the source electrode of the first PMOS P1 respectively, the grid of the first PMOS P1 is connected with the output terminal of the 7th comparer A7, the electrode input end of the 7th comparer A7 respectively with the drain electrode of the second PMOS P2, one end of 8th resistance R8, the electrode input end of the 4th comparer A4, the negative input of the 6th comparer A6, the electrode input end of the 9th comparer A9, the charging end of discharge and recharge selector switch J7, one end of 11 electric capacity C11, one end of 12 electric capacity C12, one end of 13 electric capacity C13, charge and discharge protecting module 3, one end of voltage limiter X01 and the positive pole of test battery BAT connect, the electrode input end of the 8th comparer A8 is connected with the other end of the 8th resistance R8 and one end of the 9th resistance R9 respectively, the negative input of the 8th comparer A8 is connected with the other end of outside first reference voltage input terminal REF1 and the tenth resistance R10 respectively, the negative input of the 4th comparer A4 is connected with the electrode input end of the 6th comparer A6 and outside 2.9V voltage input end respectively, the negative input ground connection of the 9th comparer A9, the other end of the 9th resistance R9 is connected with the drain electrode of the 5th NMOS tube N5, the source ground of the 5th NMOS tube N5, the other end of voltage limiter X01 respectively with the drain electrode of the 7th NMOS tube N7, one end of first inductance L 1 and the positive pole of the second voltage stabilizing diode ZD2 connect, the source ground of the 7th NMOS tube N7, the grid of the 7th NMOS tube N7 is connected with the output terminal of the one or two input nand gate L01, the first input end of the one or two input nand gate L01 inputs with the one or two respectively and is connected with the square-wave signal output terminal of the first input end of door L03 and oscillating circuit G1, second input end of the one or two input nand gate L01 is connected with the positive signal output part of synchronous rs flip-flop Q01, the end and the one or two that sets to 0 of synchronous rs flip-flop Q01 inputs and is connected with the output terminal of door L03, 1 end of putting of synchronous rs flip-flop Q01 is connected with the input end of the first phase inverter INV1 and the output terminal of the first comparer A1 respectively, the output terminal and the one or two of the first phase inverter INV1 inputs and is connected with second input end of door L03, the clock pulse input terminal of synchronous rs flip-flop Q01 is connected with one end of crystal oscillator OSC, the other end of crystal oscillator OSC is connected with the output terminal of the 4th comparer A4, the sawtooth signal output terminal of oscillating circuit G1 is connected with the electrode input end of the first comparer A1, the negative input of the first comparer A1 respectively with the output terminal of the second comparer A2, one end of one end of first electric capacity C1 and the first resistance R1 connects, and the electrode input end of the second comparer A2 is connected with outside second reference voltage input terminal REF2, the negative input of the second comparer A2 respectively with the other end of the first electric capacity C1, one end of second electric capacity C2, one end of one end of 7th resistance R7 and the 6th resistance R6 connects, and the other end of the first resistance R1 is connected with the other end of the second electric capacity C2, the other end ground connection of the 6th resistance R6, the other end of the 7th resistance R7 respectively with one end of the 9th electric capacity C9, one end of tenth electric capacity C10, one end of the negative pole of the second voltage stabilizing diode ZD2 and pull-up resistor Rf connects, the other end of the 9th electric capacity C9 and the equal ground connection of the other end of the tenth electric capacity C10, the earth terminal of pull-up resistor Rf respectively with the other end of the 11 electric capacity C11, the other end of the 12 electric capacity C12, the other end of the 13 electric capacity C13, the other end of the 13 resistance R13, the positive terminal of the first electric current monitor U2 and the earth terminal of charge and discharge protecting module 3 connect, the negative pole end ground connection of the first electric current monitor U2, the negative pole of the first electric current monitor U2 is used for being connected with the negative pole end of wireless charging receiver, the other end of the first inductance L 1 is connected with the stationary contact end of discharge and recharge selector switch J7, the discharge end ground connection of discharge and recharge selector switch J7.

Wherein, the principle of work of boost module is as follows: the 6th resistance R6 and the 7th resistance R7 is used for carrying out dividing potential drop to the voltage that the other end from the 7th resistance R7 exports, when the value of the voltage exported from the other end of the 7th resistance R7 is because when more small change occurs some reason, these small changing values can amplify by the second comparer A2, value after amplifying fluctuates as a comparison threshold of the first comparer A1, and the electrode input end of the first comparer A1 is for inputting the sawtooth signal produced by oscillating circuit G1; The change of the value of the voltage exported along with the other end from the 7th resistance R7, the output terminal of the first comparer A1 exports the adjustable square-wave signal of a dutycycle, when the value of the voltage exported from the other end of the 7th resistance R7 becomes big space rate reduction, when the value of the voltage exported from the other end of the 7th resistance R7 dutycycle that diminishes increases, so just achieve the automatic regulation function to voltage in circuit.

The principle of work of charging module is as follows: when the voltage U at test battery BAT two ends _bATduring lower than 2.9V, circuit does to test battery BAT the capacity that C/5(C represents test battery BAT) trickle charge, as 2.9V < U _bATduring < 4.2V, circuit starts to do constant-current charge to test battery BAT, works as U _bAT>=4.2V, charging current reduces gradually, until charging current is little stop charging to a certain extent afterwards.Wherein, the 4th comparer A4 is used for the voltage U at test battery BAT two ends _bATduring lower than 2.9V, turn off booster circuit; The circuit of the 5th comparer A5, the 6th comparer A6 and the two or two input nand gate L02 composition be used for voltage at test battery BAT two ends lower than 2.9V or when being greater than certain value from the current value that the negative pole of test battery BAT flows out control charge mode be trickle charge; When the voltage at test battery BAT two ends is more than or equal to 2.9V, constant current mode is adopted to charge to test battery BAT; Temperature signal comparer T1 is used for carrying out overheating protection, stops charging when the temperature when detecting that test battery BAT charges is excessive; 9th comparer A9 is used for stopping when the voltage at test battery BAT two ends is greater than 4.2V continuing charging to test battery BAT.

As Fig. 2, shown in Fig. 5, charge and discharge protecting module 3 comprises the tenth comparer A10, 11 comparer A11, 12 comparer A12, 13 comparer A13, 14 comparer A14, first rheostat VR1, second rheostat VR2, 14 electric capacity C14, 16 resistance R16, 17 resistance R17, 19 resistance R19, 20 resistance R20, first voltage source B1, second voltage source B2, tertiary voltage source B3, 4th voltage source B4, first NMOS tube N1, second NMOS tube N2, three or two input and door L06 and three value and gate L07, one end of first rheostat VR1 respectively with one end of the 17 resistance R17, one end of 14 electric capacity C14 and one end of the second rheostat VR2 connect, the other end of the first rheostat VR1 is connected with one end of the 19 resistance R19 and the electrode input end of the tenth comparer A10 respectively, the other end ground connection of the 19 resistance R19, the other end of the 19 resistance R19 is connected with one end of the 20 resistance R20 and the negative pole of the first voltage source B1 respectively, the other end of the second rheostat VR2 is connected with the other end of the 20 resistance R20 and the electrode input end of the 11 comparer A11 respectively, the positive pole of the first voltage source B1 is connected with the negative input of the 11 comparer A11 and the negative input of the tenth comparer A10 respectively, the output terminal and the three or two of the tenth comparer A10 inputs and is connected with the first input end of door L06, the output terminal and the three or two of the 11 comparer A11 inputs and is connected with second input end of door L06, three or two input is connected with the grid of the first NMOS tube N1 with the output terminal of door L06, the negative input of the 12 comparer A12 respectively with the negative input of the 13 comparer A13, the negative input of the 14 comparer A14 and one end of the 16 resistance R16 connect, the other end of the 16 resistance R16 is connected with the other end of the 13 resistance R13 and the source electrode of the first NMOS tube N1 respectively, the other end of the 17 resistance R17 is connected with the positive pole of test battery BAT and one end of the 11 electric capacity C11 respectively, the negative pole of test battery BAT is connected with the other end of the 14 electric capacity C14 and the source electrode of the second NMOS tube N2 respectively, the drain electrode of the first NMOS tube N1 is connected with the drain electrode of the second NMOS tube N2, the positive pole of the second voltage source B2 is connected with the electrode input end of the 12 comparer A12, the minus earth of the second voltage source B2, the positive pole of tertiary voltage source B3 is connected with the electrode input end of the 13 comparer A13, the minus earth of tertiary voltage source B3, the positive pole of the 4th voltage source B4 is connected with the positive pole of the 14 comparer A14, the minus earth of the 4th voltage source B4, the output terminal of the 12 comparer A12 is connected with the first input end of three value and gate L07, the output terminal of the 13 comparer A13 is connected with second input end of three value and gate L07, the output terminal of the 14 comparer A14 is connected with the 3rd input end of three value and gate L07, the output terminal of three value and gate L07 is connected with the grid of the second NMOS tube N2.

As shown in Figure 6, timing module 5 comprises the timer U5 that model is YM5135-CT-H, two or two input and door L05, reset button switch S1, 15 electric capacity C15 and the 18 resistance R18, two or two input is connected with one end of the 14 resistance R14 with the first input end of door L05, two or two input is connected with the output terminal of the three or two input nand gate L04 with second input end of door L05, two or two input is connected with the timing end of timer U5 with the output terminal of door L05, the reset terminal of timer U5 respectively with one end of reset button switch S1, one end of 15 electric capacity C15 and one end of the 18 resistance R18 connect, the other end of the 15 electric capacity C15 is connected with the other end of reset button switch S1 and the positive terminal of wireless charging receiver respectively, the other end ground connection of the 18 resistance R18.

As shown in Figure 7, monitoring data transmission module is provided with between electric current and voltage monitoring module U3 and wireless charging receiver, monitoring data transmission module comprises the first analog-digital converter AD1, second analog-digital converter AD2, quantity of electric charge testing circuit U6, one-out-three gating switch MUX and serial ports control linkage module U7, electric current and voltage monitoring module U3 is provided with monitor current signal output part and monitoring voltage signal output part, monitor current signal output part is connected with the input end of the first analog-digital converter AD1, monitoring voltage signal output part is connected with the input end of the second analog-digital converter AD2, the output terminal of the first analog-digital converter AD1 is connected with first moving contact of one-out-three gating switch MUX, the output terminal of the second analog-digital converter AD2 is connected with second moving contact of one-out-three gating switch MUX, the electrode input end of quantity of electric charge testing circuit U6 is connected with the positive pole of test battery BAT, the negative input of quantity of electric charge testing circuit U6 is connected with the negative pole of test battery BAT, the output terminal of quantity of electric charge testing circuit U6 is connected with the 3rd moving contact of one-out-three gating switch MUX, the stationary contact of one-out-three gating switch MUX is connected with the data communication interface of wireless charging receiver by serial ports control linkage module U7.

As shown in Figure 8, quantity of electric charge testing circuit U6 comprises the 16 electric capacity C16, 17 electric capacity C17, 18 electric capacity C18, 21 resistance R21, 22 resistance R22, 23 resistance R23, 24 resistance R24, 25 resistance R25, 15 comparer A15, PNP transistor VT1, 3rd analog-digital converter AD3 and totalizer SA1, the positive pole of test battery BAT respectively with one end of the 16 electric capacity C16, one end of 17 electric capacity C17 and one end of the 22 resistance R22 connect, the negative pole of test battery BAT respectively with the other end of the 16 electric capacity C16, one end of 18 electric capacity C18 and one end of the 23 resistance R23 connect, the other end of the 17 electric capacity C17 and the equal ground connection of the other end of the 18 electric capacity C18, the other end of the 22 resistance R22 is connected with one end of the 24 resistance R24 and one end of the 21 resistance R21 respectively, the other end ground connection of the 23 resistance R23, the other end of the 23 resistance R23 is connected with the other end of the 21 resistance R21 and the electrode input end of the 15 comparer A15 respectively, the other end of the 24 resistance R24 is connected with the negative input of the 15 comparer A15 and the emitter of PNP transistor VT1 respectively, the output terminal of the 15 comparer A15 is connected with the base stage of PNP transistor VT1, the collector of PNP transistor VT1 is connected with one end of the 25 resistance R25 and the input end of the 3rd analog-digital converter AD3 respectively, the other end ground connection of the 25 resistance R25, the output terminal of the 3rd analog-digital converter AD3 is connected with the input end of totalizer SA1, the output terminal of totalizer SA1 is connected with the 3rd moving contact of one-out-three gating switch MUX.By the voltage at lasting detection test battery BAT two ends, the digital quantity of N position is converted into afterwards by the 3rd analog-digital converter AD3, Computing Principle due to the test battery BAT quantity of electric charge is exactly the time integral of the convection current electric current of battery BAT after tested, changing discrete case into is exactly accumulated time to this electric current, so its voltage adds up through totalizer SA1 by the digital quantity after the 3rd analog-digital converter AD3 changes, obtain quantity of electric charge consumption figures; When test battery BAT discharges, deduct by the total volume of test battery BAT the residual capacity that quantity of electric charge consumption figures just obtains test battery BAT; When test battery BAT charges, charge volume is exactly that residual capacity adds and detects by the quantity of electric charge testing circuit U6 quantity of electric charge charge value obtained.

The principle of work of above embodiment is: when the stationary contact end of discharge and recharge selector switch J7 is communicated with charging end, enter charge mode, timing module 5 starts timing, circuit starts to charge to test battery BAT simultaneously, during charging, the value of the electric current flowed out from the negative pole of test battery BAT is determined by the resistance size of the 13 resistance R13, by the time during charging complete, the grid level generation saltus step of the 6th NMOS tube N6, produce skip signal simultaneously and be sent to timing module 5, timing module 5 stops timing after obtaining this skip signal and obtains total charging time, the result of timing module 5 may be displayed in the LED display or LCD display that are connected with timing module 5, when overcharging, the first NMOS tube N1 disconnects, thus stops test battery BAT continuation charging, when the stationary contact end of discharge and recharge selector switch J7 is by discharge end ground connection, enter discharge mode, now circuit starts to discharge to test battery BAT, crosses when putting, and the second NMOS tube N2 disconnects, thus stops test battery BAT to continue electric discharge.The voltage at test battery BAT two ends when charge or discharge and the value of electric current flowed out from the negative pole of test battery BAT are detected by electric current and voltage monitoring module U3 and obtain, and show by LED display or LCD display; During charging, the second LED 2 is luminous, and after charging complete, the first LED 1 is luminous, and the second LED 2 extinguishes.

Claims

1. the pick-up unit for wireless charging receiver, it is characterized in that comprising charge management module, discharge and recharge selector switch, test battery, charge and discharge protecting module, pull-up resistor, detection display module and timing module, described charge management module is connected with wireless charging receiver by charge switch, described charge management module is connected with the stationary contact end of described discharge and recharge selector switch and one end of described pull-up resistor respectively, the charging end of described discharge and recharge selector switch, described charge and discharge protecting module, described detection display module and described timing module are connected with described test battery respectively, the discharge end of described discharge and recharge selector switch is connected with the earth terminal of described pull-up resistor, described charge management module is used for controlling charge mode according to the kind of described test battery, described charge and discharge protecting module be used for described test battery overcharge or mistake put overcurrent or short-circuit condition time protect, described detection display module for detect and display circuit in voltage and current, described timing module is used for the different charged states of described test battery are carried out to timing and shown.

2. a kind of pick-up unit for wireless charging receiver according to claim 1, it is characterized in that described test battery is lithium battery, described charge management module comprises boost module, charging module and Charge Management peripheral circuit module, described detection display module comprises the first voltage monitor, first electric current monitor and electric current and voltage monitoring module, described electric current and voltage monitoring module is for monitoring and magnitude of voltage when charge or discharge of test battery described in showing and current value, described charging module comprises temperature signal comparer, 3rd comparer, 4th comparer, 5th comparer, 6th comparer, 7th comparer, 8th comparer, 9th comparer, 4th diode, 5th diode, 6th diode, 7th diode, 5th NMOS tube, 6th NMOS tube, first PMOS, second PMOS, 3rd PMOS, two or two input nand gate, first constant current source, second constant current source, alternative gate, 5th resistance, 8th resistance, 9th resistance, tenth resistance and the 11 resistance, described boost module comprises voltage limiter, one or two input nand gate, one or two input and door, for generation of the oscillating circuit of square-wave signal and sawtooth signal, synchronous rs flip-flop, first phase inverter, 7th NMOS tube, crystal oscillator, first comparer, second comparer, first resistance, 6th resistance, 7th resistance, first electric capacity and the second electric capacity, described Charge Management peripheral circuit module comprises the 12 resistance, 13 resistance, 14 resistance, 15 resistance, first inductance, 8th electric capacity, 9th electric capacity, tenth electric capacity, 11 electric capacity, 12 electric capacity, 13 electric capacity, first light emitting diode, second light emitting diode, second voltage stabilizing diode and the three or two input nand gate, the voltage signal that the electrode input end of described temperature signal comparer exports for accessing the first temperature sensor of responding to the fixed temperature of 120 DEG C, the negative input of described temperature signal comparer is for accessing the voltage signal to the second temperature sensor output that the temperature of wireless receiver is responded to, the output terminal of described temperature signal comparer is connected with the positive pole of the 4th described diode, the negative pole of the 4th described diode respectively with the negative pole of the 5th described diode, the negative pole of the 6th described diode, the negative pole of the 7th described diode, the grid of the second described PMOS, the grid of the 3rd described PMOS and the input end of the first described constant current source are connected, the output head grounding of the first described constant current source, the positive pole of the 5th described diode is connected with the output terminal of the 3rd described comparer, the negative input of the 3rd described comparer is connected with the stationary contact of described alternative gate, the gating control end of described alternative gate is connected with the first input end of the two or two described input nand gate and the output terminal of the 6th described comparer respectively, the electrode input end of the 3rd described comparer respectively with the drain electrode of the first described PMOS, the negative input of the 5th described comparer, the output terminal of the second described constant current source and one end of the 13 described resistance connect, first moving contact of described alternative gate respectively with one end of the tenth described resistance, one end of the 11 described resistance and outside 1V voltage input end connect, second moving contact of described alternative gate respectively with the electrode input end of the 5th described comparer, the other end of the 11 described resistance, one end of the 5th described resistance and outside 0.1V voltage input end connect, the other end ground connection of the 5th described resistance, second input end of the two or two described input nand gate is connected with the output terminal of the 5th described comparer, the output terminal of the two or two described input nand gate respectively with the grid of the 5th described NMOS tube, the grid of the 6th described NMOS tube, the negative pole of the first described light emitting diode, one end of the 14 described resistance and the first input end of described timing module connect, the source ground of the 6th described NMOS tube, the drain electrode of the 6th described NMOS tube respectively with the negative pole of the second described light emitting diode, one end of the 15 described resistance, the first input end of the three or two described input nand gate and the second input end of the three or two described input nand gate connect, the described output terminal of the three or two input nand gate is connected with the second input end of described timing module, the positive pole of the 7th described diode is connected with the output terminal of the 9th described comparer, the positive pole of the 6th described diode is connected with the output terminal of the 8th described comparer, the source electrode of the 3rd described PMOS is used for being connected with the positive terminal of wireless charging receiver, the source electrode of the 3rd described PMOS respectively with the source electrode of the second described PMOS, one end of the 8th described electric capacity, one end of the 12 described resistance, the other end of the 14 described resistance, the other end of the 15 described resistance, the positive terminal of the first described voltage monitor and the input end of the second described constant current source connect, the other end of the 8th described electric capacity and the equal ground connection of negative pole end of the first described voltage monitor, the other end of the 12 described resistance is connected with the positive pole of the first described light emitting diode and the positive pole of the second described light emitting diode respectively, the drain electrode of the 3rd described PMOS is connected with the negative input of the 7th described comparer and the source electrode of the first described PMOS respectively, the grid of the first described PMOS is connected with the output terminal of the 7th described comparer, the electrode input end of the 7th described comparer respectively with the drain electrode of the second described PMOS, one end of the 8th described resistance, the electrode input end of the 4th described comparer, the negative input of the 6th described comparer, the electrode input end of the 9th described comparer, the charging end of described discharge and recharge selector switch, one end of the 11 described electric capacity, one end of the 12 described electric capacity, one end of the 13 described electric capacity, described charge and discharge protecting module, one end of described voltage limiter and the positive pole of described test battery connect, the electrode input end of the 8th described comparer is connected with the other end of the 8th described resistance and one end of the 9th described resistance respectively, the negative input of the 8th described comparer is connected with the other end of outside first reference voltage input terminal and the tenth described resistance respectively, the negative input of the 4th described comparer is connected with the electrode input end of the 6th described comparer and outside 2.9V voltage input end respectively, the negative input ground connection of the 9th described comparer, the other end of the 9th described resistance is connected with the drain electrode of the 5th described NMOS tube, the source ground of the 5th described NMOS tube, the other end of described voltage limiter respectively with the drain electrode of the 7th described NMOS tube, one end of the first described inductance and the positive pole of the second described voltage stabilizing diode connect, the source ground of the 7th described NMOS tube, the grid of the 7th described NMOS tube is connected with the output terminal of the one or two described input nand gate, the first input end of the one or two described input nand gate inputs with the described the 1 respectively and is connected with the square-wave signal output terminal of the first input end of door and described oscillating circuit, described the second input end of the one or two input nand gate is connected with the positive signal output part of described synchronous rs flip-flop, the end and the described the 1 that sets to 0 of described synchronous rs flip-flop inputs and is connected with the output terminal of door, 1 end of putting of described synchronous rs flip-flop is connected with the input end of the first described phase inverter and the output terminal of the first described comparer respectively, the output terminal and the described the 1 of the first described phase inverter inputs and is connected with the second input end of door, the clock pulse input terminal of described synchronous rs flip-flop is connected with one end of described crystal oscillator, the other end of described crystal oscillator is connected with the output terminal of the 4th described comparer, the sawtooth signal output terminal of described oscillating circuit is connected with the electrode input end of the first described comparer, the negative input of the first described comparer respectively with the output terminal of the second described comparer, one end of the first described electric capacity and one end of the first described resistance connect, the electrode input end of the second described comparer is connected with outside second reference voltage input terminal, the negative input of the second described comparer respectively with the other end of the first described electric capacity, one end of the second described electric capacity, one end of the 7th described resistance and one end of the 6th described resistance connect, the other end of the first described resistance is connected with the other end of the second described electric capacity, the other end ground connection of the 6th described resistance, the other end of the 7th described resistance respectively with one end of the 9th described electric capacity, one end of the tenth described electric capacity, the negative pole of the second described voltage stabilizing diode and one end of described pull-up resistor connect, the other end of the 9th described electric capacity and the equal ground connection of the other end of the tenth described electric capacity, the other end of described pull-up resistor respectively with the other end of the 11 described electric capacity, the other end of the 12 described electric capacity, the other end of the 13 described electric capacity, the other end of the 13 described resistance, the positive terminal of the first described electric current monitor and the earth terminal of described charge and discharge protecting module connect, the negative pole end ground connection of the first described electric current monitor, the negative pole of the first described electric current monitor is used for being connected with the negative pole end of wireless charging receiver, the other end of the first described inductance is connected with the stationary contact end of described discharge and recharge selector switch, the discharge end ground connection of described discharge and recharge selector switch.

3. a kind of pick-up unit for wireless charging receiver according to claim 2, it is characterized in that described charge and discharge protecting module comprises the tenth comparer, 11 comparer, 12 comparer, 13 comparer, 14 comparer, first rheostat, second rheostat, 14 electric capacity, 16 resistance, 17 resistance, 19 resistance, 20 resistance, first voltage source, second voltage source, tertiary voltage source, 4th voltage source, first NMOS tube, second NMOS tube, three or two input and door and three value and gate, described first rheostatic one end respectively with one end of the 17 described resistance, one end of the 14 described electric capacity and described second rheostatic one end connect, the described first rheostatic other end is connected with one end of the 19 described resistance and the electrode input end of the tenth described comparer respectively, the other end ground connection of the 19 described resistance, the other end of the 19 described resistance is connected with one end of the 20 described resistance and the negative pole of the first described voltage source respectively, the described second rheostatic other end is connected with the other end of the 20 described resistance and the electrode input end of the 11 described comparer respectively, the positive pole of the first described voltage source is connected with the negative input of the 11 described comparer and the negative input of the tenth described comparer respectively, the output terminal and the described the 32 of the tenth described comparer inputs and is connected with the first input end of door, the output terminal and the described the 32 of the 11 described comparer inputs and is connected with the second input end of door, the three or two described input is connected with the grid of the first described NMOS tube with the output terminal of door, the negative input of the 12 described comparer respectively with the negative input of the 13 described comparer, the negative input of the 14 described comparer and one end of the 16 described resistance connect, the other end of the 16 described resistance is connected with the other end of the 13 described resistance and the source electrode of the first described NMOS tube respectively, the other end of the 17 described resistance is connected with the positive pole of described test battery and one end of the 11 described electric capacity respectively, the negative pole of described test battery is connected with the other end of the 14 described electric capacity and the source electrode of the second described NMOS tube respectively, the drain electrode of the first described NMOS tube is connected with the drain electrode of the second described NMOS tube, the positive pole of the second described voltage source is connected with the electrode input end of the 12 described comparer, the minus earth of the second described voltage source, the positive pole in described tertiary voltage source is connected with the electrode input end of the 13 described comparer, the minus earth in described tertiary voltage source, the positive pole of the 4th described voltage source is connected with the positive pole of the 14 described comparer, the minus earth of the 4th described voltage source, the output terminal of the 12 described comparer is connected with the first input end of described three value and gate, the described output terminal of the 13 comparer is connected with the second input end of described three value and gate, the output terminal of the 14 described comparer is connected with the 3rd input end of described three value and gate, the output terminal of described three value and gate is connected with the grid of the second described NMOS tube.

4. a kind of pick-up unit for wireless charging receiver according to claim 3, it is characterized in that described timing module comprises the timer that model is YM5135-CT-H, two or two input and door, reset button switch, 15 electric capacity and the 18 resistance, the two or two described input is connected with one end of the 14 described resistance with the first input end of door, the two or two described input is connected with the output terminal of the three or two described input nand gate with the second input end of door, the two or two described input is connected with the timing end of described timer with the output terminal of door, the reset terminal of described timer respectively with one end of described reset button switch, one end of the 15 described electric capacity and one end of the 18 described resistance connect, the other end of the 15 described electric capacity is connected with the other end of described reset button switch and the positive terminal of wireless charging receiver respectively, the other end ground connection of the 18 described resistance.

5. a kind of pick-up unit for wireless charging receiver according to claim 1, it is characterized in that being provided with monitoring data transmission module between described electric current and voltage monitoring module and wireless charging receiver, described monitoring data transmission module comprises the first analog-digital converter, second analog-digital converter, quantity of electric charge testing circuit, one-out-three gating switch and serial ports control linkage module, described electric current and voltage monitoring module is provided with monitor current signal output part and monitoring voltage signal output part, described monitor current signal output part is connected with the input end of the first described analog-digital converter, described monitoring voltage signal output part is connected with the input end of the second described analog-digital converter, the output terminal of the first described analog-digital converter is connected with the first moving contact of described one-out-three gating switch, the output terminal of the second described analog-digital converter is connected with the second moving contact of described one-out-three gating switch, the electrode input end of described quantity of electric charge testing circuit is connected with the positive pole of described test battery, the negative input of described quantity of electric charge testing circuit is connected with the negative pole of described test battery, the output terminal of described quantity of electric charge testing circuit is connected with the 3rd moving contact of described one-out-three gating switch, the stationary contact of described one-out-three gating switch is connected with the data communication interface of wireless charging receiver by described serial ports control linkage module.

6. a kind of pick-up unit for wireless charging receiver according to claim 5, it is characterized in that described quantity of electric charge testing circuit comprises the 16 electric capacity, 17 electric capacity, 18 electric capacity, 21 resistance, 22 resistance, 23 resistance, 24 resistance, 25 resistance, 15 comparer, PNP transistor, 3rd analog-digital converter and totalizer, the positive pole of described test battery respectively with one end of the 16 described electric capacity, one end of the 17 described electric capacity and one end of the 22 described resistance connect, the negative pole of described test battery respectively with the other end of the 16 described electric capacity, one end of the 18 described electric capacity and one end of the 23 described resistance connect, the other end of the 17 described electric capacity and the equal ground connection of the other end of the 18 described electric capacity, the other end of the 22 described resistance is connected with one end of the 24 described resistance and one end of the 21 described resistance respectively, the other end ground connection of the 23 described resistance, the other end of the 23 described resistance is connected with the other end of the 21 described resistance and the electrode input end of the 15 described comparer respectively, the other end of the 24 described resistance is connected with the described negative input of the 15 comparer and the emitter of described PNP transistor respectively, the output terminal of the 15 described comparer is connected with the base stage of described PNP transistor, the collector of described PNP transistor is connected with one end of the 25 described resistance and the input end of the 3rd described analog-digital converter respectively, the other end ground connection of the 25 described resistance, the output terminal of the 3rd described analog-digital converter is connected with the input end of described totalizer, the output terminal of described totalizer is connected with the 3rd moving contact of described one-out-three gating switch.