Self-activation circuit and battery protection system with same

The invention discloses a self-activation circuit, which comprises an N-type MOS tube Q4, a PNP-type triode Q2, resistors R20, R21, R24 and R25 and a capacitor C2, wherein one end of the resistor R25 is used for being connected with a detection pin (CS) of a battery protection chip; the second end o...

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Bibliographische Detailangaben
Hauptverfasser:	XIANG BAICHUAN, YIN ZHENKUN, WANG XINGQING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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Beschreibung
Zusammenfassung:	The invention discloses a self-activation circuit, which comprises an N-type MOS tube Q4, a PNP-type triode Q2, resistors R20, R21, R24 and R25 and a capacitor C2, wherein one end of the resistor R25 is used for being connected with a detection pin (CS) of a battery protection chip; the second end of the resistor R25 is connected with a drain of the N-type MOS tube Q4; a source of the N-type MOS tube Q4 is connected with a ground terminal of a storage battery; a gate of the N-type MOS tube Q4 is connected with the ground terminal of the storage battery through the resistor R20; a collector of the PNP-type triode Q2 is connected with the gate of the N-type MOS tube Q4; an emitter of the PNP-type triode Q2 is used for being connected with a positive port (PB+) of the storage battery; a base of the PNP-type triode Q2 is connected with the positive port (PB+) of the storage battery through the resistor R21; the base of the PNP-type triode Q2 is connected with the ground terminal of the storage battery through the