Patents by Inventor Winson Cheung

Winson Cheung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • DC-DC converter with direct driven synchronous rectifier
    Publication number: 20070211500
    Abstract: A DC-DC converter with a direct driven synchronous rectifier is disclosed, comprising: a DC-AC converter receiving a DC voltage; a transformer having one primary winding coupled to the DC-AC converter and at least two secondary windings; a synchronous rectifier having two transistors; and an output filter coupled to the synchronous rectifier, wherein the two transistors of the synchronous rectifier are driven by the two secondary windings of the transformer, respectively.
    Type: Application
    Filed: March 2, 2006
    Publication date: September 13, 2007
    Applicant: HIPRO ELECTRONIC CO., LTD
    Inventors: YT Leung, Tim Leung, Winson Cheung