Patents by Inventor Michael McJimsey

Michael McJimsey 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: 9203301
    Abstract: Disclosed are devices, apparatus, circuitry, components, mechanisms, modules, units, systems, and processes for controlling the switching frequency of a voltage regulator. Frequency monitoring and adjustment circuitry is coupled to sense a switching frequency of a power switch coupled to an output filter of the voltage regulator. The frequency monitoring and adjustment circuitry is configured to provide a frequency adjustment signal based on the sensed switching frequency. Power switch control circuitry is coupled to receive the frequency adjustment signal and is configured to control switching of the power switch based on the frequency adjustment signal.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: December 1, 2015
    Assignee: Volterra Semiconductor Corporation
    Inventors: Joel Tang, Charles Yeoh, Seth Kahn, David Lidsky, Michael McJimsey
  • Publication number: 20110316502
    Abstract: Disclosed are devices, apparatus, circuitry, components, mechanisms, modules, units, systems, and processes for controlling the switching frequency of a voltage regulator. Frequency monitoring and adjustment circuitry is coupled to sense a switching frequency of a power switch coupled to an output filter of the voltage regulator. The frequency monitoring and adjustment circuitry is configured to provide a frequency adjustment signal based on the sensed switching frequency. Power switch control circuitry is coupled to receive the frequency adjustment signal and is configured to control switching of the power switch based on the frequency adjustment signal.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 29, 2011
    Applicant: VOLTERRA SEMICONDUCTOR CORPORATION
    Inventors: Joel Tang, Charles Yeoh, Seth Kahn, David Lidsky, Michael McJimsey
  • Patent number: 7859238
    Abstract: A multi-phase, coupled-inductor, DC-DC voltage converter operates in discontinuous conduction mode (DCM) when the system is operated at low output power demand. An embodiment of the converter switches to operating in continuous conduction mode (CCM) when the system is operated at high output power demand. Operation in single-drive and rotating phase DCM operation at low power are described. An alternative embodiment operates in a multiple-drive, rotating-phase, discontinuous conduction mode during at least one condition of output power demand.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: December 28, 2010
    Assignee: Volterra Semiconductor Corporation
    Inventors: Anthony Stratakos, Jieli Li, Biljana Beronja, David Lidsky, Michael McJimsey, Aaron Schultz, Charles R. Sullivan, Charles Nickel
  • Patent number: 7548046
    Abstract: A multi-phase, coupled-inductor, DC-DC voltage converter operates in discontinuous conduction mode (DCM) when the system is operated at low output power demand. An embodiment of the converter switches to operating in continuous conduction mode (CCM) when the system is operated at high output power demand. Operation in single-drive and rotating phase DCM operation at low power are described. An alternative embodiment operates in a multiple-drive, rotating-phase, discontinuous conduction mode during at least one condition of output power demand.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: June 16, 2009
    Assignee: Volterra Semiconductor Corporation
    Inventors: Anthony Stratakos, Jieli Li, Biljana Beronja, David Lidsky, Michael McJimsey, Aaron Schultz, Charles R. Sullivan, Charles Nickel
  • Patent number: 7317305
    Abstract: A multi-phase, coupled-inductor, DC-DC voltage converter operates in discontinuous conduction mode (DCM) when the system is operated at low output power demand. An embodiment of the converter switches to operating in continuous conduction mode (CCM) when the system is operated at high output power demand. Operation in single-drive and rotating phase DCM operation at low power are described. An alternative embodiment operates in a multiple-drive, rotating-phase, discontinuous conduction mode during at least one condition of output power demand.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: January 8, 2008
    Assignee: Volterra Semiconductor Corporation
    Inventors: Anthony Stratakos, Jieli Li, Biljana Beronja, David Lidsky, Michael McJimsey, Aaron Schultz, Charles R. Sullivan, Charles Nickel
  • Publication number: 20050231406
    Abstract: A method and apparatus for determining a setting specified from a plurality of the settings for a function provided in an integrated circuit, wherein the setting is specified by connecting an external measurement resistor to a measurement terminal of the integrated circuit, comprises applying a direct current to the measurement terminal of the integrated circuit, thereby producing a measurement voltage at the measurement terminal; applying the direct current to a reference terminal of the integrated circuit, wherein the reference terminal has an external reference resistor connected thereto, thereby producing a reference voltage at the reference terminal; quantizing a voltage level of a difference voltage representing a voltage difference between the reference voltage and the measurement voltage, thereby producing a quantized voltage; and providing control signals to a functional module within the integrated circuit, the control signals representing the one of the settings corresponding to the quantized volta
    Type: Application
    Filed: May 16, 2005
    Publication date: October 20, 2005
    Inventors: Jeremy Flasck, Andrew Burstein, David Lidsky, Michael McJimsey