Patents by Inventor Jerry C. Sze

Jerry C. Sze 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).

  • Surge eliminator for switching converters
    Patent number: 5162963
    Abstract: A power supply including a source of AC power, a filter including inductive elements, and rectifying circuitry. Where the AC source comprises a sinewave source, the filter includes inductive and capacitive elements; and where the AC source comprises a square wave source, the filter includes only inductive elements.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: November 10, 1992
    Assignee: Hughes Aircraft Company
    Inventors: Robert D. Washburn, Jerry C. Sze, David M. Lusher, Carlos H. Gonzalez, Robert F. McClanahan
  • N-phase sinewave converter
    Patent number: 4972309
    Abstract: A DC to AC sinewave converter having an FET with its gate terminal coupled to a switching signal which turns the FET on and off. A pair of parallel, oppositely conductive diodes couples the drain terminal of the FET to a resonant circuit that is responsive to a source of DC voltage. A clamping diode is connected between the parallel diodes and the source terminal of the FET for preventing the drain and source terminals from being reverse biased.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: November 20, 1990
    Assignee: Hughes Aircraft Company
    Inventors: Robert D. Washgurn, Jerry C. Sze, Carlos H. Gonzalez, Robert F. McClanahan, David M. Lusher
  • Capacitive coupled power supplies
    Patent number: 4841429
    Abstract: A rectifying power supply having circuitry for providing AC power, a plurality of capacitors responsive to the AC power for providing DC isolation and for providing capacitively coupled AC power, and a plurality of rectifying circuits responsive to the capacitively coupled AC power for providing respective DC outputs. The outputs of the rectifying circuits are coupled in series or in parallel.
    Type: Grant
    Filed: March 24, 1988
    Date of Patent: June 20, 1989
    Assignee: Hughes Aircraft Company
    Inventors: Robert F. McClanahan, Robert D. Washburn, Carlos H. Gonzalez, Jerry C. Sze, David M. Lusher