Patent ID: 9006929
Filing Date: 2015-04-14
Classification: H02J,Y02B,Y04S

Abstract:
1. A power supply device comprising: an AC power output unit storing and outputting an AC power; a rectifier unit rectifying an output of the AC power output unit; a DC output unit outputting an output from the rectifier unit as a DC power; and a standby power reduction unit detecting a signal regarding whether the AC power is inputted or not and discharging a standby power stored in the AC power output unit in response to the detected signal, wherein the standby power reduction unit comprises: an AC power detection unit connected to at least one of both terminals of the AC power output unit to detect an AC power inputted to the AC power output unit; a bias voltage supply unit outputting a bias voltage in response to a signal detected by the AC power detection unit; and a discharge unit connected to an output terminal of the rectifier unit and discharging a standby power stored in the AC power output unit through voltage, and wherein the discharge unit discharges the standby power of the AC power output unit rectified by the rectifier unit.