公开(公告)号：US20230155585A1

公开(公告)日：2023-05-18

申请号：US18155439

申请日：2023-01-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jehyung CHO ,  Teaho LEE ,  Daesung KANG ,  Dongjo SHIN ,  Cheolhun CHO

IPC: H03K17/18 ,  H02M1/00 ,  G01R19/155

CPC classification number: H03K17/18 ,  H02M1/0003 ,  G01R19/155 ,  H02J9/005

Abstract: A power supply device is provided. The power supply device includes a first switch element for selectively providing an alternating current (AC) power source to an actuation device, a second switch element for selectively providing the AC power source to the first switch element, a detection circuit for confirming whether or not the first switch element is in a full turn-on state, by comparing an input power source and an output power source of the first switch element, a sensor for sensing the size of the AC power source, and a controller for selectively controlling the operation of the second switch element on the basis of the sensed size of the AC power source and the confirmed full turn-on state.