Patents by Inventor Craig Steven Varga

Craig Steven Varga 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).

  • Dual loop constant on time regulator
    Patent number: 7643322
    Abstract: A circuit for improving the regulation of a current or voltage output using a constant-on-time regulator. The circuit uses a dual sense loop design. One sense loop is used to adjust a reference signal or a sense signal. A second sense loop compares the adjusted reference signal to a sense signal or compares the adjusted sense signal to a reference signal. Accordingly, the use of dual sense loops may maintain more accurate output regulation while enabling an increased dynamic response to changes in output voltage or current.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: January 5, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Craig Steven Varga, Ronald Milton Crews
  • Polyphase synchronous switching voltage regulators
    Patent number: 6144194
    Abstract: The invention provides polyphase synchronous switching regulator circuits that include N power stages connected in parallel, with each stage synchronized to a timing control signal that is 360.degree./N out of phase from one another. Each power stage supplies current I.sub.OUT /N to the load. Current-mode and voltage-mode control implementations are described that provide efficient, low voltage, high current synchronous switching regulator circuits that have low input ripple current, low EMI, high slew-rate capability and low output ripple.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: November 7, 2000
    Assignee: Linear Technology Corp.
    Inventor: Craig Steven Varga