Patent ID: 9321359
Filing Date: 2016-04-26
CPC Classification: B60L,H02J,Y02T

Claim Text:
1. A power supply system for charging a battery of a vehicle, comprising: a charger configured to charge the battery; a charging controller configured to receive a voltage to charge the battery and to operate the charger; an auxiliary battery configured to supply a first direct current (DC) voltage to operate the charging controller; and a power supplier configured to generate a second DC voltage greater than the first DC voltage using external AC power, and to supply the second DC voltage to the charging controller as a driving power source to charge the battery, wherein first and second diodes are respectively installed at output ends of the power supplier and the auxiliary battery, a cathode voltage of the second diode is increased when the power supplier supplies the second DC voltage, and the first DC voltage of the auxiliary battery is blocked due to diode characteristics.