Patents by Inventor Swarna NAVUBOTHU

Swarna NAVUBOTHU 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).

  • Differential current sensing with robust path, voltage offset removal and process, voltage, temperature (PVT) tolerance
    Patent number: 11047946
    Abstract: Aspects of the disclosure are directed to voltage-based current sensing. In accordance with one aspect, voltage-based current sensing may include performing a coarse calibration of a voltage based current sensor to determine a coarse offset; performing a fine calibration of the voltage based current sensor to determine a fine offset; performing a frequency calibration of the voltage based current sensor to determine a frequency offset; and performing a transfer function calibration of the voltage based current sensor to determine a sensor transfer function using one or more of the coarse offset, the fine offset and the frequency offset; and measuring a load current using the sensor transfer function.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: June 29, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Nam Dang, Rajeev Jain, Swarna Navubothu, Alan Lewis, Martin Saint-Laurent, Tung Nang Pham, Joseph Terregrossa, Paras Gupta, Somasekhar Maradani
  • DIFFERENTIAL CURRENT SENSING WITH ROBUST PATH, VOLTAGE OFFSET REMOVAL AND PROCESS, VOLTAGE, TEMPERATURE (PVT) TOLERANCE
    Publication number: 20190346528
    Abstract: Aspects of the disclosure are directed to voltage-based current sensing. In accordance with one aspect, voltage-based current sensing may include performing a coarse calibration of a voltage based current sensor to determine a coarse offset; performing a fine calibration of the voltage based current sensor to determine a fine offset; performing a frequency calibration of the voltage based current sensor to determine a frequency offset; and performing a transfer function calibration of the voltage based current sensor to determine a sensor transfer function using one or more of the coarse offset, the fine offset and the frequency offset; and measuring a load current using the sensor transfer function.
    Type: Application
    Filed: May 8, 2018
    Publication date: November 14, 2019
    Inventors: Nam DANG, Rajeev JAIN, Swarna NAVUBOTHU, Alan LEWIS, Martin SAINT-LAURENT, Tung Nang PHAM, Joseph TERREGROSSA, Paras GUPTA, Somasekhar MARADANI