Patent ID: 11936219
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 1:
2. The battery protection circuit of claim 1, wherein the control unit comprises:
an overcurrent sensing unit connected to both ends of the sensing resistor of the power management unit of the external system to sense a voltage generated at both ends thereof;
an overcurrent detection unit configured to compare a voltage at both ends of the sensing resistor sensed by the overcurrent sensing unit with a predetermined reference overcurrent blocking voltage value and detect an overcurrent due to an overcharge or an overdischarge of a battery according to a result of the comparison; and
a FET control unit configured to off-control the charge control FET or the discharge control FET as the overcurrent by overcharge or overdischarge is detected from the overcurrent detection unit.