| 摘要 |
A battery protection device is disclosed in the present invention. The battery protection device includes a voltage detecting circuit and a controller coupled to the voltage detecting circuit. The voltage detecting circuit includes a testing unit, a switch coupled to the testing unit, a comparator coupled to an input voltage source and the switch for comparing a value of the input voltage source with a value of the switch, and a determining unit coupled to the comparator for outputting a determining signal when receiving a prompting signal from the comparator. The controller is for receiving an external testing command to switch the switch from a reference voltage source from a testing voltage source via the testing unit, so as to inspect whether the voltage detecting circuit is normal by the determining signal of the determining unit. |
