Patents by Inventor Andrabadu Viraj

Andrabadu Viraj 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).

  • Grid synchronisation
    Patent number: 11303134
    Abstract: The invention relates to a grid synchroniser for connecting an AC output of a power converter to the AC grid mains. In one aspect the invention provides a grid synchroniser comprising an inverter controller to control an AC output of the inverter, the controller including a receiver to receive grid data from a grid sensor location remote from said inverter. In another aspect we describe techniques for rapid removal of charge from a control terminal of a power switching device such as a MOSFET, IGBT or Thyristor using a particular driver circuit.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: April 12, 2022
    Assignee: Tesla, Inc.
    Inventors: Gehan Anil Joseph Amaratunga, Lesley Chisenga, Andrabadu Viraj
  • GRID SYNCHRONISATION
    Publication number: 20210226453
    Abstract: The invention relates to a grid synchroniser for connecting an AC output of a power converter to the AC grid mains. In one aspect the invention provides a grid synchroniser comprising an inverter controller to control an AC output of the inverter, the controller including a receiver to receive grid data from a grid sensor location remote from said inverter. In another aspect we describe techniques for rapid removal of charge from a control terminal of a power switching device such as a MOSFET, IGBT or Thyristor using a particular driver circuit.
    Type: Application
    Filed: January 25, 2021
    Publication date: July 22, 2021
    Inventors: Gehan Anil Joseph Amaratunga, Lesley Chisenga, Andrabadu Viraj
  • Grid synchronisation
    Patent number: 10903658
    Abstract: The invention relates to a grid synchroniser for connecting an AC output of a power converter to the AC grid mains. In one aspect the invention provides a grid synchroniser comprising an inverter controller to control an AC output of the inverter, the controller including a receiver to receive grid data from a grid sensor location remote from said inverter. In another aspect we describe techniques for rapid removal of charge from a control terminal of a power switching device such as a MOSFET, IGBT or Thyristor using a particular driver circuit.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: January 26, 2021
    Assignee: SolarCity Corporation
    Inventors: Gehan Anil Joseph Amaratunga, Lesley Chisenga, Andrabadu Viraj
  • GRID SYNCHRONISATION
    Publication number: 20180241217
    Abstract: The invention relates to a grid synchroniser for connecting an AC output of a power converter to the AC grid mains. In one aspect the invention provides a grid synchroniser comprising an inverter controller to control an AC output of the inverter, the controller including a receiver to receive grid data from a grid sensor location remote from said inverter. In another aspect we describe techniques for rapid removal of charge from a control terminal of a power switching device such as a MOSFET, IGBT or Thyristor using a particular driver circuit.
    Type: Application
    Filed: April 24, 2018
    Publication date: August 23, 2018
    Inventors: Gehan Anil Joseph Amaratunga, Lesley Chisenga, Andrabadu Viraj
  • Grid synchronisation
    Patent number: 9997923
    Abstract: The invention relates to a grid synchronizer for connecting an AC output of a power converter to the AC grid mains. In one aspect the invention provides a grid synchronizer comprising an inverter controller to control an AC output of the inverter, the controller including a receiver to receive grid data from a grid sensor location remote from said inverter. In another aspect we describe techniques for rapid removal of charge from a control terminal of a power switching device such as a MOSFET, IGBT or Thyristor using a particular driver circuit.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: June 12, 2018
    Assignee: SolarCity Corporation
    Inventors: Gehan Anil Joseph Amaratunga, Lesley Chisenga, Andrabadu Viraj
  • Grid synchronisation
    Patent number: 8310101
    Abstract: The invention relates to a grid synchronizer for connecting an AC output of a power converter to the AC grid mains. In one aspect the invention provides a grid synchronizer comprising an inverter controller to control an AC output of the inverter, the controller including a receiver to receive grid data from a grid sensor location remote from said inverter. In another aspect we describe techniques for rapid removal of charge from a control terminal of a power switching device such as a MOSFET, IGBT or Thyristor using a particular driver circuit.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: November 13, 2012
    Assignee: Enecsys Limited
    Inventors: Gehan Anil Joseph Amaratunga, Lesley Chisenga, Andrabadu Viraj
  • GRID SYNCHRONISATION
    Publication number: 20110049990
    Abstract: The invention relates to a grid synchroniser for connecting an AC output of a power converter to the AC grid mains. In one aspect the invention provides a grid synchroniser comprising an inverter controller to control an AC output of the inverter, the controller including a receiver to receive grid data from a grid sensor location remote from said inverter. In another aspect we describe techniques for rapid removal of charge from a control terminal of a power switching device such as a MOSFET, IGBT or Thyristor using a particular driver circuit.
    Type: Application
    Filed: December 19, 2008
    Publication date: March 3, 2011
    Applicant: ENECSYS LIMITED
    Inventors: Gehan Anil Joseph Amaratunga, Lesley Chisenga, Andrabadu Viraj