Patents by Inventor Shijia (Billy) Yang

Shijia (Billy) Yang 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).

  • Clamp circuits for power converters
    Patent number: 8966294
    Abstract: A power converter comprises an input port configured to receive a source of power, an output port configured to provide output power, and a bridge circuit coupled to the input port. The bridge circuit comprises a first switch coupled in series with a second switch, and a third switch coupled in series with a fourth switch. A first clamp rectifier is coupled in series with a second clamp rectifier, and the first and second clamp rectifiers are coupled in parallel with the first and second switches. A first clamp capacitor is coupled between the first and second clamp rectifiers, with the first clamp capacitor operative to reduce power loss in the first and second clamp rectifiers. A first resonant inductor is coupled between the first and second switches. The power converter also includes a transformer operatively coupled to the bridge circuit, with the transformer comprising a primary winding and at least one secondary winding.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 24, 2015
    Assignee: Intersil Americas LLC
    Inventors: Xiaodong (David) Zhan, Long (Robin) Yu, Shijia (Billy) Yang
  • CLAMP CIRCUITS FOR POWER CONVERTERS
    Publication number: 20140157015
    Abstract: A power converter comprises an input port configured to receive a source of power, an output port configured to provide output power, and a bridge circuit coupled to the input port. The bridge circuit comprises a first switch coupled in series with a second switch, and a third switch coupled in series with a fourth switch. A first clamp rectifier is coupled in series with a second clamp rectifier, and the first and second clamp rectifiers are coupled in parallel with the first and second switches. A first clamp capacitor is coupled between the first and second clamp rectifiers, with the first clamp capacitor operative to reduce power loss in the first and second clamp rectifiers. A first resonant inductor is coupled between the first and second switches. The power converter also includes a transformer operatively coupled to the bridge circuit, with the transformer comprising a primary winding and at least one secondary winding.
    Type: Application
    Filed: August 12, 2011
    Publication date: June 5, 2014
    Applicant: INTERSIL AMERICAS INC.
    Inventors: Xiaodong (David) Zhan, Long (Robin) Yu, Shijia (Billy) Yang