Battery protection method, protection device of battery management system, chip and equipment

Abstract

The application discloses a battery protection method, a protection device of a battery management system, a chip and a battery-powered equipment. The method comprises the following steps: sampling an electric signal of a battery; judging whether a secondary protection mechanism is triggered according to the electric signal, if yes, judging whether a state of the battery is first power-on or an electric signal is abnormal; if the state of the battery is first power-on or the electric signal is abnormal, delaying for a preset time period; after the delay of the preset time period is terminated, sampling the battery again, if a condition of triggering the secondary protection mechanism is met, starting a secondary protection function. The technical scheme of the application can avoid the false triggering of the secondary protection mechanism of the battery management system, improve the working efficiency of the electronic product and save the cost.

Images