Patents by Inventor Sakkarapani BALAGOPAL

Sakkarapani BALAGOPAL 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).

  • Short detection for inductive switching converters
    Patent number: 11837956
    Abstract: A method for determining if an inductor coupled to a switching network has been electrically shorted may include applying a voltage across the inductor for a predetermined period of time, controlling an impedance in an electrical path of a voltage source generating the voltage and the inductor, sensing an inductor current through the inductor, comparing the inductor current with a predetermined current threshold, and determining whether the inductor has been electrically shorted based on the inductor current, the predetermined current threshold, and the predetermined period of time.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: December 5, 2023
    Assignee: Cirrus Logic Inc.
    Inventors: Hasnain Akram, Graeme G. Mackay, Lingli Zhang, Ruoxin Jiang, Sakkarapani Balagopal, Theodore M. Burk
  • Optimizing the Control of a Hysteretic Power Converter at Low Duty Cycles
    Publication number: 20230042883
    Abstract: A method for controlling a current associated with a power converter may comprise controlling the current based on at least a peak current threshold level for the current and a valley current threshold level for the current, and further controlling the current based on a duration of time that the power converter spends in a switching state of the power converter.
    Type: Application
    Filed: October 10, 2022
    Publication date: February 9, 2023
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Jason W. LAWRENCE, Graeme G. MACKAY, Sakkarapani BALAGOPAL
  • Optimizing the control of a hysteretic power converter at low duty cycles
    Patent number: 11522460
    Abstract: A method for controlling a current associated with a power converter may comprise controlling the current based on at least a peak current threshold level for the current and a valley current threshold level for the current, and further controlling the current based on a duration of time that the power converter spends in a switching state of the power converter.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: December 6, 2022
    Assignee: Cirrus Logic, Inc.
    Inventors: Jason W. Lawrence, Graeme G. Mackay, Sakkarapani Balagopal
  • SHORT DETECTION FOR INDUCTIVE SWITCHING CONVERTERS
    Publication number: 20220231603
    Abstract: A method for determining if an inductor coupled to a switching network has been electrically shorted may include applying a voltage across the inductor for a predetermined period of time, controlling an impedance in an electrical path of a voltage source generating the voltage and the inductor, sensing an inductor current through the inductor, comparing the inductor current with a predetermined current threshold, and determining whether the inductor has been electrically shorted based on the inductor current, the predetermined current threshold, and the predetermined period of time.
    Type: Application
    Filed: September 17, 2021
    Publication date: July 21, 2022
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Hasnain AKRAM, Graeme G. MACKAY, Lingli ZHANG, Ruoxin JIANG, Sakkarapani BALAGOPAL, Theodore M. BURK
  • OPTIMIZING TRANSITIONS BETWEEN OPERATIONAL MODES IN A BYPASSABLE POWER CONVERTER
    Publication number: 20220029537
    Abstract: In accordance with embodiments of the present disclosure, a power conversion system may include a power converter configured to receive an input voltage and generate an output voltage, a bypass switch arranged in parallel with the power converter and arranged to couple the input voltage to the output voltage when the bypass switch is activated, and a control circuit configured to control the power converter and the bypass switch based on the output voltage.
    Type: Application
    Filed: January 14, 2021
    Publication date: January 27, 2022
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Jason W. LAWRENCE, Graeme G. MACKAY, Theodore M. BURK, Sakkarapani BALAGOPAL
  • Optimizing the Control of a Hysteretic Power Converter at Low Duty Cycles
    Publication number: 20220029538
    Abstract: A method for controlling a current associated with a power converter may comprise controlling the current based on at least a peak current threshold level for the current and a valley current threshold level for the current, and further controlling the current based on a duration of time that the power converter spends in a switching state of the power converter.
    Type: Application
    Filed: January 19, 2021
    Publication date: January 27, 2022
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Jason W. LAWRENCE, Graeme G. MACKAY, Sakkarapani BALAGOPAL