Patents by Inventor Kevin C. Bass

Kevin C. Bass 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).

  • Ripple gate drive circuit for fast operation of series connected IGBTs
    Patent number: 6946885
    Abstract: A ripple gate drive circuit includes a plurality of transistors having their power terminals connected in series across an electrical potential. A plurality of control circuits, each associated with one of the transistors, is provided. Each control circuit is responsive to a control signal and an optical signal received from at least one other control circuit for controlling the conduction of electrical current through the power terminals of the associated transistor. The control circuits are responsive to a first state of the control circuit for causing each transistor in series to turn on sequentially and responsive to a second state of the control signal for causing each transistor in series to turn off sequentially.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: September 20, 2005
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Joseph H. Rockot, Thomas W. Murray, Kevin C. Bass