Patents by Inventor Shiraz J. Contractor

Shiraz J. Contractor 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).

  • Electronic device operable to protect a power transistor when used in conjunction with a transformer
    Patent number: 7929266
    Abstract: An electronic device can be used with a system, such as an ignition system, that operates a relatively high voltage. The device can include a signal clamping control module that can include a signal reference module and a feedback control module. The signal reference module is operable to provide a reference signal to the feedback control module. The feedback control can be configured to receive a scaled signal from a signal scaling module, wherein the scaled signal is representative of a signal at a current carrying electrode of a power transistor. Based on the comparison of the reference signal to the scaled signal, the measurement module provides one or more signals to a control signal drive module. The feedback control module provides a control electrode signal to a control electrode of the power transistor.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: April 19, 2011
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Ibrahim Kandah, Shiraz J. Contractor, William E. Edwards, Randall C. Gray
  • ELECTRONIC DEVICE OPERABLE TO PROTECT A POWER TRANSISTOR WHEN USED IN CONJUNCTION WITH A TRANSFORMER
    Publication number: 20090161287
    Abstract: An electronic device can be used with a system, such as an ignition system, that operates a relatively high voltage. The device can include a signal clamping control module that can include a signal reference module and a feedback control module. The signal reference module is operable to provide a reference signal to the feedback control module. The feedback control can be configured to receive a scaled signal from a signal scaling module, wherein the scaled signal is representative of a signal at a current carrying electrode of a power transistor. Based on the comparison of the reference signal to the scaled signal, the measurement module provides one or more signals to a control signal drive module. The feedback control module provides a control electrode signal to a control electrode of the power transistor.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 25, 2009
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Ibrahim Kandah, Shiraz J. Contractor, William E. Edwards, Randall C. Gray