公开(公告)号：US20140327420A1

公开(公告)日：2014-11-06

申请号：US14258573

申请日：2014-04-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joon Hwan LEE ,  Min Kwang LEE ,  Soon Bae YANG ,  Jae Jin KIM ,  Dong Gyu LEE ,  Jung Suk CHU

IPC: H02M3/156

CPC classification number: H02M3/158 ,  H02M3/07 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: A power supply includes a rectifier circuit to rectify power, a smoothing circuit unit to smoothen a voltage of the rectified power, and a voltage drop circuit unit to drop the smoothened voltage. The voltage drop circuit unit includes an electric charge storage circuit to output the voltage-dropped voltage, a resonance circuit to receive first current from the smoothing circuit unit and to supply second current to the electric charge storage circuit, and a current interruption circuit to control the first current and the second current using zero current switching for performing switching when current does not flow using a resonance circuit.

Abstract translation: 电源包括整流电路，整流电路，平滑电路单元，用于平滑整流电源的电压;以及降压电路单元，用于降低平滑电压。 电压降电路单元包括用于输出电压下降电压的电荷存储电路，用于从平滑电路单元接收第一电流并向电荷存储电路提供第二电流的谐振电路，以及用于控制电流中断电路 第一电流和第二电流使用零电流开关，当电流不使用谐振电路时进行开关。