Patents by Inventor Kiran Karnik

Kiran Karnik 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).

  • Low-voltage crystal oscillator circuit compatible with GPIO
    Patent number: 10523155
    Abstract: Low voltage crystal oscillator having native NMOS transistors used for coupling/decoupling to/from GPIO. The native NMOS transistors function properly at a low supply voltage when on (low resistance) and a high supply voltage when off (high resistance). Oscillator Gm driver bias resistors are repurposed to degenerate the native NMOS transistors when they are off, thereby reducing the leakage current thereof (oscillator circuit decoupled from GPIO nodes). This ensures compliance with the CMOS IIH leakage current specification during an external clock (EC) mode at a high supply voltage.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: December 31, 2019
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Rajan Vijayaraghavan, Ajay Kumar, Kiran Karnik
  • Low-Voltage Crystal Oscillator Circuit Compatible With GPIO
    Publication number: 20190044479
    Abstract: Low voltage crystal oscillator having native NMOS transistors used for coupling/decoupling to/from GPIO. The native NMOS transistors function properly at a low supply voltage when on (low resistance) and a high supply voltage when off (high resistance). Oscillator Gm driver bias resistors are repurposed to degenerate the native NMOS transistors when they are off, thereby reducing the leakage current thereof (oscillator circuit decoupled from GPIO nodes). This ensures compliance with the CMOS IIH leakage current specification during an external clock (EC) mode at a high supply voltage.
    Type: Application
    Filed: May 23, 2018
    Publication date: February 7, 2019
    Applicant: Microchip Technology Incorporated
    Inventors: Rajan Vijayaraghavan, Ajay Kumar, Kiran Karnik
  • Voltage regulator with a bandwidth variation reduction network
    Patent number: 8351886
    Abstract: Embodiments of circuits, apparatuses, and systems for a voltage regulator with a bandwidth variation reduction network are disclosed. Other embodiments may be described and claimed.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: January 8, 2013
    Assignee: TriQuint Semiconductor, Inc.
    Inventor: Kiran Karnik
  • Automatic calibration circuit
    Patent number: 8310224
    Abstract: Embodiments of circuits, devices, and methods related to calibration circuits are disclosed. In various embodiments, a calibration circuit may be used for calibrating a power detector circuit. In various other embodiments, a calibration circuit may be used for calibrating a resistor module. Other embodiments may also be described and claimed.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: November 13, 2012
    Assignee: TriQuint Semiconductor, Inc.
    Inventor: Kiran Karnik
  • Voltage regulator with control loop for avoiding hard saturation
    Patent number: 8265574
    Abstract: Embodiments of circuits, apparatuses, and systems for a voltage regulator with a control loop for avoiding hard saturation are disclosed. Other embodiments may be described and claimed.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: September 11, 2012
    Assignee: TriQuint Semiconductor, Inc.
    Inventors: Kiran Karnik, Andrew Labaziewicz
  • VOLTAGE REGULATOR WITH CONTROL LOOP FOR AVOIDING HARD SATURATION
    Publication number: 20110248693
    Abstract: Embodiments of circuits, apparatuses, and systems for a voltage regulator with a control loop for avoiding hard saturation are disclosed. Other embodiments may be described and claimed.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 13, 2011
    Applicant: TRIQUINT SEMICONDUCTOR, INC.
    Inventors: Kiran Karnik, Andrew Labaziewicz
  • AUTOMATIC CALIBRATION CIRCUIT
    Publication number: 20110187345
    Abstract: Embodiments of circuits, devices, and methods related to calibration circuits are disclosed. In various embodiments, a calibration circuit may be used for calibrating a power detector circuit. In various other embodiments, a calibration circuit may be used for calibrating a resistor module. Other embodiments may also be described and claimed.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 4, 2011
    Applicant: TRIQUINT SEMICONDUCTOR, INC.
    Inventor: Kiran Karnik