Patents by Inventor Khanderao Madhav Gaikwad

Khanderao Madhav Gaikwad 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).

  • Publication number: 20210210949
    Abstract: A power supply includes a power converter, a protection circuit, and a control circuit. The protection circuit includes an input for receiving an input voltage, an output for providing an output voltage to the power converter, a first switching device coupled in a current path between the input and the output, and a second switching device coupled across the first switching device. The control circuit is configured to sense the input voltage and the output voltage, in response to the output voltage exceeding a first defined threshold, turn off the first switching device and turn on the second switching device to supply power to the power converter, and in response to the input voltage exceeding a second defined threshold, turn off the second switching device to disconnect the power source from the power converter. Other example power supplies and protection circuits are also disclosed.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 8, 2021
    Inventors: Ruel Joyosa TOLENTINO, Jahres Rederi Masangkay SATUR, Khanderao Madhav GAIKWAD
  • Publication number: 20210111583
    Abstract: An electric power supply comprises first and second input circuits for receiving first and second input DC voltages and a control circuit coupled to the first and second input circuits. The control circuit is configured to sense the first input DC voltage and the second input DC voltage and to enable the first input circuit and disable the second input circuit in response to the first input circuit having the highest input DC voltage to substantially prevent current from back feeding to the first input circuit from the second input circuit. The control circuit is also configured to enable the second input circuit and disable the first input circuit in response to the second input circuit having the highest input DC voltage to substantially prevent current from back feeding to the second input circuit from the first input circuit.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 15, 2021
    Applicant: Astec International Limited
    Inventors: Rochie Ligaya Sedillo Libby, Neil Maderas Reyes, Khanderao Madhav Gaikwad
  • Patent number: 10886777
    Abstract: A back-feed protection circuit includes input circuits and a control circuit. Each input circuit includes an input for receiving an input DC voltage. The control circuit is configured to enable one of the first input circuit and the second input circuit having the highest input DC voltage, and disable the other input circuit to substantially prevent current from back feeding to the first input circuit and/or the second input circuit. Each input circuit additionally and/or alternatively includes a positive rail, a reference rail and a plurality of switching devices. A set of the switching devices are coupled in series in the positive rail of each input circuit, and another set of the switching devices are coupled in series in the reference rail of each input circuit. Other example back-feed protection circuits, and electric power supplies including back-feed protection circuits are also disclosed.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: January 5, 2021
    Assignee: Astec International Limited
    Inventors: Rochie Ligaya Sedillo Libby, Neil Maderas Reyes, Khanderao Madhav Gaikwad