Patents by Inventor Henry F. Pruett

Henry F. Pruett 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).

  • Patent number: 10681829
    Abstract: An electrical assembly may include an enclosure having a base portion to attach the enclosure to a panel and a heat dissipating portion opposite the base portion, a circuit board having a first thermal interface on a first side of the board, a second thermal interface on a second side of the board, and a thermally conductive portion to provide enhanced thermal conduction between the first thermal interface and the second thermal interface, a power electronic device having a thermal interface coupled to the first thermal interface of the circuit board, a heat spreader arranged to transfer heat to the heat dissipating portion of the enclosure, and a thermally conductive pad coupled between the second thermal interface of the circuit board and the heat spreader.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: June 9, 2020
    Assignee: SunPower Corporation
    Inventors: James Dorenkamp, Henry F. Pruett, Ravindranath Naiknaware
  • Publication number: 20170354057
    Abstract: An electrical assembly may include an enclosure having a base portion to attach the enclosure to a panel and a heat dissipating portion opposite the base portion, a circuit board having a first thermal interface on a first side of the board, a second thermal interface on a second side of the board, and a thermally conductive portion to provide enhanced thermal conduction between the first thermal interface and the second thermal interface, a power electronic device having a thermal interface coupled to the first thermal interface of the circuit board, a heat spreader arranged to transfer heat to the heat dissipating portion of the enclosure, and a thermally conductive pad coupled between the second thermal interface of the circuit board and the heat spreader.
    Type: Application
    Filed: August 22, 2017
    Publication date: December 7, 2017
    Applicant: SunPower Corporation
    Inventors: James Dorenkamp, Henry F. Pruett, Ravindranath Naiknaware
  • Patent number: 9763360
    Abstract: An electrical assembly may include an enclosure having a base portion to attach the enclosure to a panel and a heat dissipating portion opposite the base portion, a circuit board having a first thermal interface on a first side of the board, a second thermal interface on a second side of the board, and a thermally conductive portion to provide enhanced thermal conduction between the first thermal interface and the second thermal interface, a power electronic device having a thermal interface coupled to the first thermal interface of the circuit board, a heat spreader arranged to transfer heat to the heat dissipating portion of the enclosure, and a thermally conductive pad coupled between the second thermal interface of the circuit board and the heat spreader.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: September 12, 2017
    Assignee: SunPower Corporation
    Inventors: James Dorenkamp, Henry F. Pruett, Ravindranath Naiknaware
  • Publication number: 20160254673
    Abstract: A local power converter may include a controller to manipulate the operating point of a local power converter to cause the power point tracking feature of a central power converter to operate at a point determined by the controller. In some embodiments, the controller can manipulate the operating point of the local power converter by alternating between at least two modes. In some other embodiments, the controller can manipulate the operating point of the local power converter to provide a substantially constant slope. In some other embodiments, the controller can maintain a substantially constant impedance ratio. In some other embodiments, the controller enables perturbations from the power point tracking feature of the central power converter to reach the power source.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 1, 2016
    Applicant: SunPower Corporation
    Inventors: Robert Batten, Vincenzo DiTommaso, Gary B. Baker, Henry F. Pruett, Adam Heiberg, Triet Tu Le, Edward Gee
  • Patent number: 9419438
    Abstract: In some embodiments, a system includes a power system coupled to a power bus, and a power line communication (PLC) gateway coupled in series with the power bus. In other embodiments, a system includes first and second power circuits coupled in series with a power bus, and first and second power-line communication circuits coupled in series with the power bus. In additional embodiments, a system includes a power converter coupled to a power bus and having one or more switching frequencies, and a power-line communication circuit coupled to the power bus and having one or more communication frequencies, where at least one of the switching frequencies is substantially greater than at least one of the communication frequencies.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: August 16, 2016
    Assignee: SunPower Corporation
    Inventors: Henry F. Pruett, Vincenzo DiTommaso, Ravindranath Naiknaware, Jorell A. Olson
  • Patent number: 9342088
    Abstract: A local power converter may include a controller to manipulate the operating point of a local power converter to cause the power point tracking feature of a central power converter to operate at a point determined by the controller. In some embodiments, the controller can manipulate the operating point of the local power converter by alternating between at least two modes. In some other embodiments, the controller can manipulate the operating point of the local power converter to provide a substantially constant slope. In some other embodiments, the controller can maintain a substantially constant impedance ratio. In some other embodiments, the controller enables perturbations from the power point tracking feature of the central power converter to reach the power source.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: May 17, 2016
    Assignee: SunPower Corporation
    Inventors: Robert Batten, Vincenzo DiTommaso, Gary B. Baker, Henry F. Pruett, Adam Heiberg, Triet Tu Le, Edward Gee
  • Publication number: 20150342084
    Abstract: An electrical assembly may include an enclosure having a base portion to attach the enclosure to a panel and a heat dissipating portion opposite the base portion, a circuit board having a first thermal interface on a first side of the board, a second thermal interface on a second side of the board, and a thermally conductive portion to provide enhanced thermal conduction between the first thermal interface and the second thermal interface, a power electronic device having a thermal interface coupled to the first thermal interface of the circuit board, a heat spreader arranged to transfer heat to the heat dissipating portion of the enclosure, and a thermally conductive pad coupled between the second thermal interface of the circuit board and the heat spreader.
    Type: Application
    Filed: July 31, 2015
    Publication date: November 26, 2015
    Applicant: SUNPOWER CORPORATION
    Inventors: James Dorenkamp, Henry F. Pruett, Ravindranath Naiknaware
  • Patent number: 9101082
    Abstract: An electrical assembly may include an enclosure having a base portion to attach the enclosure to a panel and a heat dissipating portion opposite the base portion, a circuit board having a first thermal interface on a first side of the board, a second thermal interface on a second side of the board, and a thermally conductive portion to provide enhanced thermal conduction between the first thermal interface and the second thermal interface, a power electronic device having a thermal interface coupled to the first thermal interface of the circuit board, a heat spreader arranged to transfer heat to the heat dissipating portion of the enclosure, and a thermally conductive pad coupled between the second thermal interface of the circuit board and the heat spreader.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: August 4, 2015
    Assignee: SunPower Corporation
    Inventors: James Dorenkamp, Henry F. Pruett, Ravindranath Naiknaware
  • Publication number: 20150163074
    Abstract: In some embodiments, a system includes a power system coupled to a power bus, and a power line communication (PLC) gateway coupled in series with the power bus. In other embodiments, a system includes first and second power circuits coupled in series with a power bus, and first and second power-line communication circuits coupled in series with the power bus. In additional embodiments, a system includes a power converter coupled to a power bus and having one or more switching frequencies, and a power-line communication circuit coupled to the power bus and having one or more communication frequencies, where at least one of the switching frequencies is substantially greater than at least one of the communication frequencies.
    Type: Application
    Filed: October 14, 2014
    Publication date: June 11, 2015
    Inventors: Henry F. Pruett, Vincenzo DiTommaso, Ravindranath Naiknaware, Jorell A. Olson
  • Patent number: 8860242
    Abstract: In some embodiments, a system includes a power system coupled to a power bus, and a power line communication (PLC) gateway coupled in series with the power bus. In other embodiments, a system includes first and second power circuits coupled in series with a power bus, and first and second power-line communication circuits coupled in series with the power bus. In additional embodiments, a system includes a power converter coupled to a power bus and having one or more switching frequencies, and a power-line communication circuit coupled to the power bus and having one or more communication frequencies, where at least one of the switching frequencies is substantially greater than at least one of the communication frequencies.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: October 14, 2014
    Assignee: SolarBridge Technologies, Inc.
    Inventors: Henry F. Pruett, Vincenzo DiTommaso, Ravindranath Naiknaware, Jorell A. Olson
  • Publication number: 20110160930
    Abstract: A local power converter may include a controller to manipulate the operating point of a local power converter to cause the power point tracking feature of a central power converter to operate at a point determined by the controller. In some embodiments, the controller can manipulate the operating point of the local power converter by alternating between at least two modes. In some other embodiments, the controller can manipulate the operating point of the local power converter to provide a substantially constant slope. In some other embodiments, the controller can maintain a substantially constant impedance ratio. In some other embodiments, the controller enables perturbations from the power point tracking feature of the central power converter to reach the power source.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 30, 2011
    Applicant: AZURAY TECHNOLOGIES, INC.
    Inventors: Robert Batten, Vincenzo DiTommaso, Gary B. Baker, Henry F. Pruett, Adam Heiberg, Triet Tu Le, Edward Gee
  • Patent number: 7880396
    Abstract: A projector device employing ballast with a flyback converter is disclosed. For example, one embodiment comprises a lamp driver circuit including a power stage circuit including a flyback converter to output a direct current signal to a bridge circuit, the bridge circuit to reconstruct the direct current signal to an alternating current signal, a control circuit coupled with the power stage circuit and the bridge circuit, the control circuit to receive the direct current signal from the power stage circuit and to provide a frequency control signal to the bridge circuit, and a lamp igniter circuit comprising at least one charge pump and being coupled with the bridge circuit, wherein in response to the frequency control signal being provided to the bridge circuit, the bridge circuit is configured to increase the voltage of the alternating current signal provided to the lamp igniter circuit to power the lamp igniter circuit.
    Type: Grant
    Filed: June 14, 2008
    Date of Patent: February 1, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Henry F. Pruett
  • Publication number: 20080309246
    Abstract: A projector device employing ballast with a flyback converter is disclosed. For example, one embodiment comprises a lamp driver circuit including a power stage circuit including a flyback converter to output a direct current signal to a bridge circuit, the bridge circuit to reconstruct the direct current signal to an alternating current signal, a control circuit coupled with the power stage circuit and the bridge circuit, the control circuit to receive the direct current signal from the power stage circuit and to provide a frequency control signal to the bridge circuit, and a lamp igniter circuit comprising at least one charge pump and being coupled with the bridge circuit, wherein in response to the frequency control signal being provided to the bridge circuit, the bridge circuit is configured to increase the voltage of the alternating current signal provided to the lamp igniter circuit to power the lamp igniter circuit.
    Type: Application
    Filed: June 14, 2008
    Publication date: December 18, 2008
    Applicant: INFOCUS CORPORATION
    Inventor: Henry F. Pruett