公开(公告)号：US20240333133A1

公开(公告)日：2024-10-03

申请号：US18621465

申请日：2024-03-29

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Bin QIAN ,  Yunyu TANG ,  Yaojia ZHANG ,  Chao LIU

IPC: H02M1/08 ,  H02M3/156

CPC classification number: H02M1/08 ,  H02M3/156

Abstract: A power converter including a drive circuit connected to a power conversion circuit. The drive circuit is configured to: amplify a control signal from the controller, drive a switching tube in the power conversion circuit to be turned on or off, to implement power conversion of the power conversion circuit. The controller is configured to: in response to a voltage of the power conversion circuit being greater than or equal to a first threshold, control the drive circuit to be in a first amplification mode; or the controller is configured to: in response to a voltage of the power conversion circuit being less than a first threshold, control the drive circuit to be in a second amplification mode. An equivalent drive resistance of the drive circuit corresponding to the first amplification mode is greater than an equivalent drive resistance of the drive circuit corresponding to the second amplification mode.