Patents by Inventor STEVEN R. EVERSON

STEVEN R. EVERSON 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).

  • Patent number: 9601985
    Abstract: A segmented driver including at least one drive pin and a sense pin, a driver circuit, a comparator, and a controller. The driver circuit activates a selected drive level between the drive pins and a reference node. The comparator compares a voltage of the sense pin with a threshold voltage and provides a threshold indication when the voltage of the sense pin reaches the threshold voltage. The controller commands the driver circuit to activate a first drive level in response to an off indication, and commands the driver circuit to switch to a second, lower drive level in response to the threshold indication. The driver circuit may be implemented using low resistive current devices. Multiple drive pins may be included, each for selectively activating a corresponding drive path to adjust drive level. The threshold voltage may be set using a current source and resistor, and may be adjusted for temperature.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: March 21, 2017
    Assignee: NXP USA, Inc.
    Inventors: Ibrahim S. Kandah, Fred T. Brauchler, Steven R. Everson, Kim R. Gauen
  • Publication number: 20150318848
    Abstract: A segmented driver including at least one drive pin and a sense pin, a driver circuit, a comparator, and a controller. The driver circuit activates a selected drive level between the drive pins and a reference node. The comparator compares a voltage of the sense pin with a threshold voltage and provides a threshold indication when the voltage of the sense pin reaches the threshold voltage. The controller commands the driver circuit to activate a first drive level in response to an off indication, and commands the driver circuit to switch to a second, lower drive level in response to the threshold indication. The driver circuit may be implemented using low resistive current devices. Multiple drive pins may be included, each for selectively activating a corresponding drive path to adjust drive level. The threshold voltage may be set using a current source and resistor, and may be adjusted for temperature.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 5, 2015
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Ibrahim S. Kandah, Fred T. Brauchler, Steven R. Everson, Kim R. Gauen
  • Patent number: 9172365
    Abstract: A circuit performs a method for controlling turn-off of a semiconductor switching element. The method includes determining at least one operating parameter for the semiconductor switching element during an operating cycle and determining a gate discharge current based on the at least one operating parameter. The method further includes supplying the gate discharge current to a gate of the semiconductor switching element during a subsequent operating cycle to turn off the semiconductor switching element.
    Type: Grant
    Filed: August 31, 2013
    Date of Patent: October 27, 2015
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Ibrahim S. Kandah, Fred T. Brauchler, Steven R. Everson
  • Publication number: 20150061750
    Abstract: A circuit performs a method for controlling turn-off of a semiconductor switching element. The method includes determining at least one operating parameter for the semiconductor switching element during an operating cycle and determining a gate discharge current based on the at least one operating parameter. The method further includes supplying the gate discharge current to a gate of the semiconductor switching element during a subsequent operating cycle to turn off the semiconductor switching element.
    Type: Application
    Filed: August 31, 2013
    Publication date: March 5, 2015
    Inventors: IBRAHIM S. KANDAH, FRED T. BRAUCHLER, STEVEN R. EVERSON