Patents by Inventor Chung-Pin Kan

Chung-Pin Kan 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).

  • Reverse energy recovery circuit
    Patent number: 8139379
    Abstract: A reverse energy recovery circuit is located on a power conversion circuit equipped with a transformer which has a primary winding side connected to a power switch driven by a control unit. The primary winding side has a first end and a second end bridged by the reverse energy recovery circuit which comprises a first capacitor, a second capacitor, an ancillary winding and a diode. The first and second capacitors are coupled in series. The second capacitor has one end connected to the first end of the primary winding side. The ancillary winding has a first end connected to the first end of the primary winding side. The diode has a cathode connected to a second end of the ancillary winding and an anode bridged the first and second capacitors so that the diode and ancillary winding form a one way path between the first and second capacitors.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: March 20, 2012
    Assignee: FSP Technology Inc.
    Inventors: Yung-Hsiang Shih, Chung-Pin Kan
  • REVERSE ENERGY RECOVERY CIRCUIT
    Publication number: 20110199791
    Abstract: A reverse energy recovery circuit is located on a power conversion circuit equipped with a transformer which has a primary winding side connected to a power switch driven by a control unit. The primary winding side has a first end and a second end bridged by the reverse energy recovery circuit which comprises a first capacitor, a second capacitor, an ancillary winding and a diode. The first and second capacitors are coupled in series. The second capacitor has one end connected to the first end of the primary winding side. The ancillary winding has a first end connected to the first end of the primary winding side. The diode has a cathode connected to a second end of the ancillary winding and an anode bridged the first and second capacitors so that the diode and ancillary winding form a one way path between the first and second capacitors.
    Type: Application
    Filed: February 17, 2010
    Publication date: August 18, 2011
    Inventors: Yung-Hsiang SHIH, Chung-Pin Kan