公开(公告)号：US20230299669A1

公开(公告)日：2023-09-21

申请号：US18324207

申请日：2023-05-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhengyan HE ,  Haitao CHEN ,  Xingzhong ZHANG

IPC: H02M3/07 ,  H02M3/00

CPC classification number: H02M3/07 ,  H02M3/01

Abstract: A resonant switched capacitor direct current/direct current converter includes N resonant switched capacitor groups, M capacitors, and at least one LC series circuit, where N is an integer greater than or equal to 2, and M is an integer less than or equal to N. Each resonant switched capacitor group includes switches and a resonant circuit. The resonant circuit includes a resonant inductor and a resonant capacitor. The LC series circuit, namely, a circuit including an inductor and a capacitor that are connected in series, is connected between any two resonant switched capacitor groups. At the moment when the switch is turned off, the resonant inductor is not sufficient to implement complete discharging of a junction capacitor of the switch. The inductor is added, to implement complete discharging of the junction capacitor of the switch, that is, to remove a current, so that the switch implements soft switching.