公开(公告)号：US10020731B2

公开(公告)日：2018-07-10

申请号：US14959071

申请日：2015-12-04

Applicant: DELTA ELECTRONICS, INC.

Inventor： Zeng Li ,  Chaofeng Cai

IPC: H01H19/64 ,  H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M2001/0054 ,  Y02B70/1491

Abstract: A power switch circuit includes at least one switch unit including at least one first switch and one second switch which are connected in parallel. A turning-on loss of the first switch is smaller than a turning-on loss of the second switch, a turning-off loss of the first switch is larger than a turning-off loss of the second switch; during one controlling period of the switch unit, when the switch unit is controlled to be turned on, a moment when the first switch is turned on is controlled to be earlier than a moment when the second switch is turned on; and when the switch unit is controlled to be turned off, a moment when the first switch is turned off is controlled to be earlier than a moment when the second switch is turned off.