Patent ID: 9148014
Filing Date: 2015-09-29
Classification: H02H,H02J

Abstract:
1. A battery protection circuit comprising: a first switch comprising a gate terminal, a source terminal, and a drain terminal; a control module comprising a delay chip and a second switch; the delay chip comprises a pin OUT; a base terminal of the second switch is connected to a positive terminal of a battery, and an emitter terminal of the second switch is grounded; and a loading module connected to the battery; wherein the gate terminal is connected to a collector terminal of the second switch and connected to the pin OUT of the delay chip, the source terminal is grounded, the drain terminal is connected to a first capacitor, and the first capacitor is grounded, and when the loading module is in an overcurrent state or in an overvoltage state, the gate terminal is configured to receive a controlling signal to switch off the first switch.