Patents by Inventor Christopher Nelson St. John

Christopher Nelson St. John 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).

  • Switching mode power supply with spread spectrum oscillator
    Patent number: 9520780
    Abstract: Apparatus for use in a system, including a microcontroller for controlling the system, where the microcontroller includes at least one internal module capable of generating a periodic pulse signal. The microcontroller is programmed and operated so that the internal module generates a periodic pulse signal that is a pseudo-random spread spectrum oscillator signal. A switching mode power supply is responsive to the pseudo-random spread spectrum oscillator signal. The switching mode power supply comprises a solid state switch and a modulator for driving the solid state switch with a drive signal related to the periodic pulse signal generated by the internal module of the microcontroller.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: December 13, 2016
    Assignee: TRW Automotive U.S. LLC
    Inventors: Mark Emerson Grandy, Jonathan Joseph Kuhn, Christopher Nelson St. John
  • SWITCHING MODE POWER SUPPLY WITH SPREAD SPECTRUM OSCILLATOR
    Publication number: 20150232029
    Abstract: Apparatus for use in a system, including a microcontroller for controlling the system, where the microcontroller includes at least one internal module capable of generating a periodic pulse signal. The microcontroller is programmed and operated so that the internal module generates a periodic pulse signal that is a pseudo-random spread spectrum oscillator signal. A switching mode power supply is responsive to the pseudo-random spread spectrum oscillator signal. The switching mode power supply comprises a solid state switch and a modulator for driving the solid state switch with a drive signal related to the periodic pulse signal generated by the internal module of the microcontroller.
    Type: Application
    Filed: February 17, 2014
    Publication date: August 20, 2015
    Inventors: Mark Emerson Grandy, Jonathan Joseph Kuhn, Christopher Nelson St. John