Battery protection circuit and method of controlling the same

摘要

A battery protection circuit and a method of controlling the same is disclosed. The battery protection circuit includes: a battery management system for controlling charging and discharging of a battery; and a reset control circuit for controlling a reset operation of the battery management system. The battery management system includes: a reset terminal to which a first voltage for determining reset is applied; and a reset prevention terminal to which a second voltage for determining reset prevention of the battery management system is applied. The reset control circuit is connected between the reset terminal and the reset prevention terminal to control the applying of the first voltage to the reset prevention terminal. Accordingly, an unintended reset operation of the battery management system may be prevented.

主权项

1. A battery protection circuit comprising:
a battery management system configured to control charging and discharging of a battery; and a reset control circuit configured to control resetting the battery management system, wherein the battery management system comprises:
a reset terminal to which a first voltage for determining reset is applied; anda reset prevention terminal to which a second voltage for determining reset prevention of the battery management system is applied,wherein the reset control circuit is connected between the reset terminal and the reset prevention terminal to control applying the first voltage to the reset prevention terminal and;wherein the reset control circuit comprises:
a first transistor comprising a first electrode connected to the reset prevention terminal, a second electrode connected to the reset terminal, and a control electrode; anda second transistor comprising a first electrode connected to the control electrode of the first transistor, a second electrode connected to ground, and a control electrode to which a reset control signal is applied.