Patent Number: 8,824,181

Title: Apparatus and method for a switch mode power supply configured to reduce standby power consumption

Abstract: A switch mode power supply (SMPS) is capable of reducing standby power consumption, and includes a power factor capacitor (PFC) bulk capacitor which supplies power in a standby mode to constant loads by repeatedly charging and discharging a voltage, a PFC controller which controls the voltage to be charged in the PFC bulk capacitor, a first resistor and a second resistor which divide the voltage of the PFC bulk capacitor and output a reference voltage, and a control unit which controls the charging and discharging of the voltage of the PFC bulk capacitor in accordance with the reference voltage.

Inventors: Choi; Hyo-soon (Suwon-si, KR), Chang; Gil-yong (Suwon-si, KR)

Assignee: Samsung Electronics Co., Ltd.

International Classification: H02M 7/217 (20060101)

Expiration Date: 9/02/12018