Patents by Inventor Stephen Kosic

Stephen Kosic 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: 9252660
    Abstract: A system, method, and computer program product for generating a regulated boosted load voltage. A comparator may use reduced versions of a reference voltage, a supply voltage, and a fed-back output load voltage to determine whether the output load voltage requires adjustment. If so, a controller may responsively vary the number of voltage boosting charge pumps connected in parallel to the load to best match a target voltage. The target voltage may be the reference voltage plus the supply voltage. A counter may track the number of active charge pumps, and may increment or decrement the number more slowly than the charge pumps operate. Loop gain may be limited by an integrating filter to prevent oscillation. The embodiments are of particular utility for signal conversion circuitry as they eliminate difficulties arising from gate-source voltage inadequacies and differences in switch transistors. A wider range of reference voltages may be accommodated.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: February 2, 2016
    Assignee: ANALOG DEVICES, INC.
    Inventors: Efram Burlingame, Stephen Kosic
  • Publication number: 20140091773
    Abstract: A system, method, and computer program product for generating a regulated boosted load voltage. A comparator may use reduced versions of a reference voltage, a supply voltage, and a fed-back output load voltage to determine whether the output load voltage requires adjustment. If so, a controller may responsively vary the number of voltage boosting charge pumps connected in parallel to the load to best match a target voltage. The target voltage may be the reference voltage plus the supply voltage. A counter may track the number of active charge pumps, and may increment or decrement the number more slowly than the charge pumps operate. Loop gain may be limited by an integrating filter to prevent oscillation. The embodiments are of particular utility for signal conversion circuitry as they eliminate difficulties arising from gate-source voltage inadequacies and differences in switch transistors. A wider range of reference voltages may be accommodated.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: ANALOG DEVICES, INC.
    Inventors: Efram BURLINGAME, Stephen KOSIC
  • Publication number: 20060214731
    Abstract: A differential two-stage Miller compensated amplifier system with capacitive level shifting includes a first stage differential transconductance amplifier including first and second output nodes and an output common mode voltage, a second stage differential transconductance amplifier including non-inverting and inverting inputs and outputs and an input common mode voltage, and a level shifting capacitor circuit coupled between the first and second output nodes and the non-inverting and inverting inputs for level shifting between the output common mode voltage of the first stage and the input common mode voltage of the second stage.
    Type: Application
    Filed: December 16, 2005
    Publication date: September 28, 2006
    Inventors: Daniel Kelly, Steven Decker, Stephen Kosic