The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 07, 2025

Filed:

Jun. 16, 2020
Applicant:

Redisem Ltd., Hong Kong, CN;

Inventors:

Russell Jacques, Shatin, HK;

David Coulson, Shatin, HK;

Assignee:

Redisem LTD., Shatin, HK;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/157 (2006.01); H02M 1/00 (2006.01); H02M 1/42 (2007.01);
U.S. Cl.
CPC ...
H02M 1/4258 (2013.01); H02M 1/0019 (2021.05); H02M 3/157 (2013.01);
Abstract

A power converter comprising an active power factor correction (APFC) circuit. A first compensation circuit provides a first compensation signal to the APFC circuit. A second compensation circuit provides a second compensation signal to the APFC circuit. A load demand sensing circuit receives a load demand signal to switch on the second compensation circuit to provide the second compensation signal. There is also provided a controller for a power converter, with the controller comprising a first compensation circuit for providing a first compensation signal to an active power factor correction (APFC) circuit, and a second compensation circuit for providing a second compensation signal to the APFC circuit. The controller also comprises a load demand sensing circuit for receiving a load demand signal to switch on the second compensation circuit to provide the second compensation signal.


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