Patents by Inventor Wennan Guo

Wennan 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).

  • Digital controller for a voltage regulator module
    Patent number: 7456618
    Abstract: A digital controller for a voltage regulator module (VRM) having single phase or multiphase power converters, and an optional dynamic conversion circuit, is disclosed. The digital controller improves the transient response of the VRM during harsh load current transients, and permits a substantial reduction in output capacitance of the VRM. When used with multiphase interleaved power converters, for a given load current requirement, the digital converter permits the number of interleaved phases of the VRM to be minimized. A VRM with the digital controller demonstrates low cost, high power density, high efficiency, and fast transient response.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: November 25, 2008
    Assignee: Chil Semiconductor, Inc.
    Inventors: Praveen Jain, Wennan Guo
  • Digital controller for a voltage regulator module
    Publication number: 20070096704
    Abstract: A digital controller for a voltage regulator module (VRM) having single phase or multiphase power converters, and an optional dynamic conversion circuit, is disclosed. The digital controller improves the transient response of the VRM during harsh load current transients, and permits a substantial reduction in output capacitance of the VRM. When used with multiphase interleaved power converters, for a given load current requirement, the digital converter permits the number of interleaved phases of the VRM to be minimized. A VRM with the digital controller demonstrates low cost, high power density, high efficiency, and fast transient response.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 3, 2007
    Inventors: Praveen Jain, Wennan Guo