Battery protecting circuit, method of controlling the same, and battery pack

摘要

A battery pack is disclosed. The battery pack has an analog front end which senses if a failure occurs in a microcontroller, and interrupts charging and discharging of the battery in response to the failure.

主权项

1. A battery pack, comprising
a battery cell; a terminal unit; a switch selectively connecting the battery cell and the terminal unit; a control processor that generates commands; and an analog front end that receives the commands from the control processor and controls charging and discharging of the battery cell according to the commands, wherein the analog front end comprises:
a status input terminal connected to the control processor and that receives a status signal indicative of a status of the control processor,a failure determination, processor connected to the status input terminal to receive the status signal, the failure determination processor generating a failure signal based on the status signal, the failure signal being indicative of whether the control processor has experienced a failure, anda switch controller connected to the failure determination processor to receive the failure signal, wherein the switch controller further connects to the switch and outputs a control signal to control the switch according to the failure signal.