Patents by Inventor PHILIPE J. PERRUCHOUD

PHILIPE J. PERRUCHOUD 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 MONITORING OPERATION OF AN INSULATED GATE BIPOLAR TRANSISTOR
    Publication number: 20150316602
    Abstract: Operation of an insulated gate bipolar transistor (IGBT) is monitored by an apparatus that has a capacitor connected between a collector of the IGBT and an input node. A processing circuit, coupled to the input node, responds to current flowing through the capacitor by providing an indication whether a voltage level at the collector is changing and the rate of that change. The processing circuit also employs the capacitor current to provide an output voltage that indicates the voltage at the IGBT collector.
    Type: Application
    Filed: January 9, 2013
    Publication date: November 5, 2015
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: RANDALL C. GRAY, IBRAHIM S. KANDAH, PHILIPE J. PERRUCHOUD, JOHN M. PIGOTT, THIERRY SICARD