The invention provides a low-voltage turn-off zero-power-consumption auxiliary power supply circuit, which comprises a first protection circuit and a second protection circuit which are arranged between a battery pack and a single chip microcomputer, wherein the input end of the first protection circuit is connected with the positive electrode of the battery pack, the output end of the first protection circuit is connected with the VCC pin of the single chip microcomputer, the input end of the second protection circuit is connected with the negative electrode of the battery pack, the output end of the second protection circuit is connected with the negative electrode pin of the single chip microcomputer, the low-voltage turn-off zero-power-consumption auxiliary power supply circuit furthercomprises a third protection circuit, one end of the third protection circuit is connected with the first protection circuit, the other end of the third protection circuit is connected with the second protection circuit, and the third protection circuit comprises a resistor R1, a voltage stabilizing diode Z1 and a voltage stabilizing diode Z2. According to the low-voltage turn-off zero-power-consumption auxiliary power supply circuit, low-voltage turn-off zero power consumption is achieved, battery charging self-recovery is achieved, the number of devices is small, cost is low, and reliability is high.
本发明提供了一种低压关断零功耗的辅助电源电路,包括设置在电池组以及单片机之间的第一保护电路以及第二保护电路;第一保护电路的输入端与电池组的正极连接,输出端与单片机的VCC管脚连接;第二保护电路的输入端与电池组的负极连接,输出端与单片机的负极管脚连接;还包括第三保护电路,第三保护电路一端与第一保护电路连接,另一端与第二保护电路连接,第三保护电路包括电阻R1,稳压二极管Z1以及Z2。本发明所述的一种低压关断零功耗的辅助电源电路低压关断零功耗、电池充电自恢复、器件少成本低且可靠性高。
Low-voltage turn-off zero-power-consumption auxiliary power supply circuit
一种低压关断零功耗的辅助电源电路
2020-10-02
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen |
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