Patent ID: 9653931
Date: 2017-05-16
CPC Classifications: G01R,H02H,H02J

Claim:
1. A battery protection device, adapted to be electrically connected to a battery set and a load, the battery protection device comprising: a signal terminal, configured to be electrically connected to the load; a discharge circuit, electrically connected to the signal terminal; and a control circuit, electrically connected to the signal terminal and the discharge circuit to detect a sensing voltage from the signal terminal and count a number of times that the battery protection device switches from a normal mode to a protection mode, so as to obtain a counting value, wherein the control circuit determines whether to enter the normal mode or the protection mode according to a reference voltage, and in the protection mode, the control circuit adjusts the reference voltage according to the counting value or controls the discharge circuit according to the counting value to form a discharge path passing through the signal terminal, the discharge path, and a ground.