Patents by Inventor Barry Culpepper

Barry Culpepper 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).

  • Apparatus and method for start-up for a synchronous switching regulator
    Patent number: 7045992
    Abstract: A synchronous switching voltage regulator circuit is provided. After the first PWM pulse or at the end of a soft-start, a gradual transition is made from asynchronous rectification to fully synchronous rectification. The gradual transition to synchronous rectification is made by gradually increasing the time that the synchronous switch is enabled to be on.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: May 16, 2006
    Assignee: National Semiconductor Corporation
    Inventors: Faruk Jose Nome Silva, Kwok-Fu Chiu, Barry Culpepper, Michael J. Wurtz