CPC H02J 7/00308 (2020.01) [H02J 7/0036 (2013.01); H02J 7/0047 (2013.01); H02J 7/0029 (2013.01)] | 9 Claims |
1. A battery protection circuit, comprising:
a detection circuit portion that outputs a wake-up signal when a voltage is input to an outer terminal, the detection circuit portion including:
a first resistor, a second resistor, and a second diode connected in series between the outer terminal and a ground;
a first diode connected between a node between the first resistor and the second resistor and the outer terminal; and
a transistor connected between the outer terminal and the controller and controlled by a voltage of the node between the first resistor and the second resistor;
a controller that outputs a switching control signal when the wake-up signal is received from the detection circuit portion; and
a switching portion that controls a connection of a battery module and the outer terminal according to the switching control signal.
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