Patents by Inventor Darryl J. Tschirhart

Darryl J. Tschirhart 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).

  • Controller for a resonant power converter
    Patent number: 8638571
    Abstract: This invention relates to circuits and methods for controlling a resonant power converter. Control of the power converter may comprise comparing an output voltage or current of the converter to at least one reference voltage or current; enabling primary side switching signals based on a first selected result of the comparison; and disabling primary side switching signals based on a second selected result of the comparison; wherein a primary side switching signal for each primary side switch includes at least one off-on-off transition.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: January 28, 2014
    Assignee: SPARQ Systems Inc.
    Inventors: Darryl J. Tschirhart, Praveen K. Jain
  • Controller for a Resonant Power Converter
    Publication number: 20110205761
    Abstract: This invention relates to circuits and methods for controlling a resonant power converter. Control of the power converter may comprise comparing an output voltage or current of the converter to at least one reference voltage or current; enabling primary side switching signals based on a first selected result of the comparison; and disabling primary side switching signals based on a second selected result of the comparison; wherein a primary side switching signal for each primary side switch includes at least one off-on-off transition.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 25, 2011
    Inventors: Darryl J. Tschirhart, Praveen K. Jain