Patents by Inventor Patrick Lyle Chapman

Patrick Lyle Chapman 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: 20240039296
    Abstract: A portable energy system is provided herein and comprises a plurality of microinverters and an AC input and an AC output configured to connect to at least one of an AC input of another portable energy system or to a component of an energy management system.
    Type: Application
    Filed: July 27, 2023
    Publication date: February 1, 2024
    Inventors: Sandeep NARLA, Patrick Lyle CHAPMAN, Sambit SATPATHY
  • Patent number: 11838017
    Abstract: Apparatus for performing substrate voltage management is provided herein and comprises an active substrate voltage management circuit configured to be coupled to a substrate of a bidirectional gallium nitride high electron mobility transistor comprising a first source and a second source. The active substrate voltage management circuit comprises a first circuit that is connected to the first source and a second circuit that is connected to a second source such that when the bidirectional gallium nitride high electron mobility transistor is operational one of the first circuit or the second circuit connects one of the first source to the substrate or the second source to the substrate, respectively, to control a bias voltage applied to the substrate.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: December 5, 2023
    Assignee: Enphase Energy, Inc.
    Inventors: Michael J. Harrison, Christiaan Johannes van Antwerpen, Patrick Lyle Chapman
  • Publication number: 20230006537
    Abstract: A system for driving four-quadrant (4Q) switches of a power converter is provided herein and comprises a transformer driver module, a first gate driver module and a second gate driver module coupled to the transformer driver module via a first isolation transformer and a second isolation transformer, respectively, for receiving both switch signal information and power, and a first bidirectional switch and a second bidirectional switch coupled to the first gate driver module and the second gate driver module and to one another for driving the first bidirectional switch and the second bidirectional switch based on the switch signal information.
    Type: Application
    Filed: June 22, 2022
    Publication date: January 5, 2023
    Inventors: Tomasz Janusz Kotula, Patrick Lyle Chapman, Martin Fornage
  • Publication number: 20220416784
    Abstract: Apparatus for performing substrate voltage management is provided herein and comprises an active substrate voltage management circuit configured to be coupled to a substrate of a bidirectional gallium nitride high electron mobility transistor comprising a first source and a second source. The active substrate voltage management circuit comprises a first circuit that is connected to the first source and a second circuit that is connected to a second source such that when the bidirectional gallium nitride high electron mobility transistor is operational one of the first circuit or the second circuit connects one of the first source to the substrate or the second source to the substrate, respectively, to control a bias voltage applied to the substrate.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 29, 2022
    Inventors: MICHAEL J. HARRISON, Christiaan Johannes van Antwerpen, Patrick Lyle Chapman
  • Publication number: 20220294228
    Abstract: A partial-resonant converter is provided herein and comprises a partial resonant link formed by a magnetizing link inductor connected in parallel with a first capacitor on a primary winding side of a transformer and a second capacitor on a secondary winding side of the transformer, a pair of series connected switches coupled across the magnetizing link inductor and the first capacitor, and a plurality of forward conducting bidirectional blocking switches that connect an input source and an output load to the magnetizing link inductor during operation.
    Type: Application
    Filed: March 9, 2022
    Publication date: September 15, 2022
    Inventors: Khalegh Mozaffari, Fernando Rodriguez, Patrick Lyle Chapman