公开(公告)号：US20240014731A1

公开(公告)日：2024-01-11

申请号：US18346679

申请日：2023-07-03

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Ken Chin ,  Shanglin Mo ,  Shuaibing Wang ,  Liangyun Kang

IPC: H02M1/42 ,  H02M1/00

CPC classification number: H02M1/4233 ,  H02M1/0038

Abstract: A noise suppression method and apparatus for a totem pole power factor correction (PFC) circuit and an electronic device are provided. In response to a determination that an alternating current of the totem pole PFC circuit is switched at a zero crossing, a control signal is sent to a switch that enables a PFC inductor in the totem pole PFC circuit to charge or discharge. After the switch is turned off for a first period of time, the switch is turned on again for a second period of time.