Patents by Inventor by Marvin R. Thomas, executor

by Marvin R. Thomas, executor 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).

  • Low loss synchronous rectifier for application to clamped-mode power converters
    Patent number: 5872705
    Abstract: A synchronous rectifier for use with a clamped-mode power converter uses in one embodiment a hybrid rectifier with a MOSFET rectifying device active in one first cyclic interval of the conduction/nonconduction sequence of the power switch and a second rectifying device embodied in one illustrative embodiment as a low voltage diode rectifying device active during an alternative interval to the first conduction/nonconduction interval. The gate drive to the MOSFET device is continuous at a constant level for substantially all of the second interval which enhances efficiency of the rectifier. The diode rectifier device may also be embodied as a MOSFET device. The subject rectifier may be used in both forward and flyback power converters.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: February 16, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Thomas Patrick Loftus, Jr., deceased, by Marvin R. Thomas, executor, Allen Frank Rozman