Patents by Inventor Qiao Liong Chen

Qiao Liong Chen 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).

  • Resonant converter for synchronous rectification control
    Patent number: 8014173
    Abstract: A resonant converter for improving synchronous rectification control is provided. The resonant converter obtains an input power, and through a switch unit, the period of the input power to be transmitted to a resonant circuit can be modified. The resonant converter further includes two transformers electrically connected to the resonant circuit, two synchronous controllers electrically connected to the primary sides of two transformers respectively, and two synchronous rectifiers electrically connected to the secondary sides of two transformers. The input power modified by the resonant circuit is obtained by the primary sides of two transformers, and two induced power are respectively produced at the secondary sides. Then, through sensing the polarity variation of the voltage, the two synchronous controllers individually provide a synchronous driving signal.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: September 6, 2011
    Assignee: FSP Technology Inc.
    Inventors: Ming Xu, Bo Yuan, Qiao Liong Chen
  • RESONANT CONVERTER FOR SYNCHRONOUS RECTIFICATION CONTROL
    Publication number: 20100097826
    Abstract: A resonant converter for improving synchronous rectification control is provided. The resonant converter obtains an input power, and through a switch unit, the period of the input power to be transmitted to a resonant circuit can be modified. The resonant converter further includes two transformers electrically connected to the resonant circuit, two synchronous controllers electrically connected to the primary sides of two transformers respectively, and two synchronous rectifiers electrically connected to the secondary sides of two transformers. The input power modified by the resonant circuit is obtained by the primary sides of two transformers, and two induced power are respectively produced at the secondary sides. Then, through sensing the polarity variation of the voltage, the two synchronous controllers individually provide a synchronous driving signal.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 22, 2010
    Inventors: Ming Xu, Bo Yuan, Qiao Liong Chen