Patent ID: 11929740
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 6:
7. A relay control apparatus, comprising:
a relay disposed on a main path between a battery cell and a pack terminal and configured to electrically connect or disconnect the main path according to an operation state of the relay; and
a comparator configured to receive a comparison voltage from the main path and output a result signal to the relay based on a difference between a reference voltage and the comparison voltage;
a voltage source configured to apply the reference voltage to the comparator;
a variable resistor configured to be disposed between the voltage source and the comparator; and
a controller configured to adjust a magnitude of the reference voltage applied to the comparator to correspond to the withstanding voltage of the relay by adjusting a resistance of the variable resistor,
wherein the relay is further configured to receive the result signal and control the operation state of the relay to a turn-on state or a turn-off state according to a magnitude of the received result signal, and
wherein the controller is configured to determine a degree of degradation of the relay and adjust a magnitude of the variable resistor based on the determined degree of degradation.