Patents by Inventor Kapil R. SHARMA

Kapil R. SHARMA 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).

  • CURRENT SENSING CIRCUITRY
    Publication number: 20240044954
    Abstract: The present application relates to current sensing circuitry (100) that comprises a differential amplifier (110) comprising first and second inputs configured to sense a current across a sense resistance, and an output configured to output a current sense signal. The circuitry (100) further comprises a first current source, a second current source and a switch network operable in: a first phase in which the first current source is connected to the first input and disconnected from the output, and the second current source is connected to the output and disconnected from the first input; and a second phase in which the first current source is connected to the output and disconnected from the first input, and the second current source is connected to the first input and disconnected from the output.
    Type: Application
    Filed: October 11, 2023
    Publication date: February 8, 2024
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Dipankar NAG, Peter HSU, Kapil R. SHARMA, Gordon J. BATES, Simon R. FOSTER, Mark J. MCCLOY-STEVENS
  • CURRENT SENSING
    Publication number: 20240012035
    Abstract: This application relates to methods and apparatus for sensing current in a monitored current path, where the monitored current path is bidirectional such that current can flow in either direction along the monitored current path. A current sensor has first and second sense resistors (401a, 401b) configured to each pass a current corresponding to the current in the monitored current path. The first and second sense resistors are configured to have a matching arrangement, such that current flow through the first sense resistor when current is flowing in one direction in the monitored current path matches current flow through the second sense resistor when current is flowing in the opposite direction in the monitored current path.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 11, 2024
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Kapil R. SHARMA, Kathryn R. HOLLAND, Matthew PETHERBRIDGE, Peter HSU, John B. BOWLERWELL
  • Current sensing circuitry
    Patent number: 11835554
    Abstract: The present application relates to current sensing circuitry (100) that comprises a differential amplifier (110) comprising first and second inputs configured to sense a current across a sense resistance, and an output configured to output a current sense signal. The circuitry (100) further comprises a first current source, a second current source and a switch network operable in: a first phase in which the first current source is connected to the first input and disconnected from the output, and the second current source is connected to the output and disconnected from the first input; and a second phase in which the first current source is connected to the output and disconnected from the first input, and the second current source is connected to the first input and disconnected from the output.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: December 5, 2023
    Assignee: Cirrus Logic Inc.
    Inventors: Dipankar Nag, Peter Hsu, Kapil R. Sharma, Gordon J. Bates, Simon R. Foster, Mark J. McCloy-Stevens
  • CURRENT SENSING CIRCUIT
    Publication number: 20210333310
    Abstract: The present application relates to current sensing circuitry (100) that comprises a differential amplifier (110) comprising first and second inputs configured to sense a current across a sense resistance, and an output configured to output a current sense signal. The circuitry (100) further comprises a first current source, a second current source and a switch network operable in: a first phase in which the first current source is connected to the first input and disconnected from the output, and the second current source is connected to the output and disconnected from the first input; and a second phase in which the first current source is connected to the output and disconnected from the first input, and the second current source is connected to the first input and disconnected from the output.
    Type: Application
    Filed: December 21, 2020
    Publication date: October 28, 2021
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Dipankar NAG, Peter HSU, Kapil R. SHARMA, Gordon J. BATES, Simon R. FOSTER, Mark J. MCCLOY-STEVENS