Patents by Inventor Dennis W. Gyma

Dennis W. Gyma 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).

  • Flyback power supply regulator
    Patent number: 4302802
    Abstract: A constant frequency switching-type power supply with pulse width modulation control in which the error signal is compared with an auxiliary ramp that starts with the clock pulses as well as with a current ramp signal and in which the clock pulses controlling the closing of the switches are delayed so as to avoid transfer of energy at no load that results from the inherent delay between the time when the current ramp crosses above the error signal and the time when the switches are opened.
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: November 24, 1981
    Assignee: Hewlett-Packard Company
    Inventors: John W. Hyde, Dennis W. Gyma