Patents by Inventor Zufeng Guo

Zufeng Guo 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).

  • Publication number: 20100123433
    Abstract: The present invention provides a voltage equalization apparatus and method for a battery system. The apparatus includes: a mutual inductor or a transformer, which includes a primary winding, a magnetic core and multiple secondary windings; a first switch, connected in series with the primary winding, wherein the first switch and the primary winding are connected in parallel with the battery system; a plurality of second switches, respectively connected in series with the secondary windings, wherein the second switches and the secondary windings are connected in parallel with the cells; and a voltage equalization control circuit, configured to: test voltage of each cell in the battery system and control turning off and turning on of the first switch and second switches.
    Type: Application
    Filed: August 24, 2009
    Publication date: May 20, 2010
    Applicant: SHENZHEN HUAWEI COMMUNICATON TECHNOLOGIES CO., LTD.
    Inventor: Zufeng Guo