公开(公告)号：US20240223075A1

公开(公告)日：2024-07-04

申请号：US18540189

申请日：2023-12-14

Applicant: Delta Electronics, Inc.

Inventor： Wei-Cheng Cheng ,  Yen-Ting Chen ,  Ching-Jung Lin

IPC: H02M1/42

CPC classification number: H02M1/4233

Abstract: A control method of a power factor correction circuit is provided. The first operating frequency of the power factor correction circuit is controlled to less than one-third of the minimum limitation frequency, the first operating frequency is controlled to less than 1−Nth of the first suppression frequency, and the second operating frequency of the power factor correction circuit is controlled to less than 1−Nth of the second suppression frequency. Consequently, at least portion of the operating frequency of the power factor correction circuit is not in the range measured by the machine so as to reduce the value of the noise of the electromagnetic interference.