Patents by Inventor Junqiang Zhang

Junqiang Zhang 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).

  • AC/DC CONVERTING CIRCUIT AND MOTOR CONTROLLER USING THE SAME
    Publication number: 20100207556
    Abstract: An AC/DC converting circuit, has a full-bridge rectifier having two input terminals and two output terminals, a first capacitor, a second capacitor, an electronic switch having a control terminal, a trigger circuit having an input terminal and an output terminal, and a detecting circuit having an input terminal and an output terminal.
    Type: Application
    Filed: August 18, 2009
    Publication date: August 19, 2010
    Applicant: Zhongshan Broad-Ocean Motor Co., Ltd.
    Inventors: Yong ZHAO, Junqiang ZHANG, Dawei LIU, Songfa TANG