Patents by Inventor Denis René Pierre Mathieu

Denis René Pierre Mathieu 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 control of semiconductor switching devices
    Patent number: 9509299
    Abstract: Disclosed is a control circuit for control of a semiconductor switching device, such as an IGBT. The control circuit comprising a first feedback path between a first electrode and a control electrode of said semiconductor switching device which has a capacitance. The circuit is operable such that the capacitance in the first feedback path is dependent on the voltage level at said first electrode. In another embodiment the control circuit is operable such that a feedback signal begins to flow in the first feedback path immediately as the semiconductor switching device begins switching off, thereby causing a control action on the semiconductor switching device.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: November 29, 2016
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventor: Denis René Pierre Mathieu
  • APPARATUS AND METHOD FOR CONTROL OF SEMICONDUCTOR SWITCHING DEVICES
    Publication number: 20150042397
    Abstract: Disclosed is a control circuit for control of a semiconductor switching device, such as an IGBT. The control circuit comprising a first feedback path between a first electrode and a control electrode of said semiconductor switching device which has a capacitance. The circuit is operable such that the capacitance in the first feedback path is dependent on the voltage level at said first electrode. In another embodiment the control circuit is operable such that a feedback signal begins to flow in the first feedback path immediately as the semiconductor switching device begins switching off, thereby causing a control action on the semiconductor switching device.
    Type: Application
    Filed: January 5, 2012
    Publication date: February 12, 2015
    Applicant: AMERICAN POWER CONVERSION CORPORATION
    Inventor: Denis René Pierre Mathieu