Patents by Inventor Alex Lostetter

Alex Lostetter 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: 10405450
    Abstract: The disclosure is directed to a power module that includes at least one power substrate, a housing arranged on the at least one power substrate, and a first terminal electrically connected to the at least one power substrate. The first terminal includes a contact surface located above the housing at a first elevation. The power module includes a second terminal including a contact surface located above the housing at a second elevation different from the first elevation, a third terminal electrically connected to the at least one power substrate, and a plurality of power devices electrically connected to the at least one power substrate.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: September 3, 2019
    Assignee: Cree Fayetteville, Inc.
    Inventors: Brice McPherson, Alex Lostetter
  • Patent number: 10136529
    Abstract: A method of making a power module includes providing a base plate defining a topology pattern, providing a power substrate above the base plate, providing at least two power contacts and arranging solder catches in the at least two power contacts, soldering the at least two power contacts to the power substrate utilizing the solder catches, and securing a housing to the power substrate.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: November 20, 2018
    Assignee: Cree Fayetteville, Inc.
    Inventors: Brice McPherson, Peter Killeen, Alex Lostetter, Robert Shaw, Brandon Passmore, Jared Hornberger, Tony M. Berry
  • Publication number: 20160353590
    Abstract: A method of making a power module includes providing a base plate defining a topology pattern, providing a power substrate above the base plate, providing at least two power contacts and arranging solder catches in the at least two power contacts, soldering the at least two power contacts to the power substrate utilizing the solder catches, and securing a housing to the power substrate.
    Type: Application
    Filed: August 15, 2016
    Publication date: December 1, 2016
    Inventors: Brice McPherson, Peter Killeen, Alex Lostetter, Robert Shaw, Brandon Passmore, Jared Hornberger, Tony M. Berry
  • Patent number: 9426883
    Abstract: A power module with multiple equalized parallel power paths supporting multiple parallel bare die power devices constructed with low inductance equalized current paths for even current sharing and clean switching events. Wide low profile power contacts provide low inductance, short current paths, and large conductor cross section area provides for massive current carrying. An internal gate & source kelvin interconnection substrate is provided with individual ballast resistors and simple bolted construction. Gate drive connectors are provided on either left or right size of the module. The module is configurable as half bridge, full bridge, common source, and common drain topologies.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: August 23, 2016
    Assignee: Cree Fayetteville, Inc.
    Inventors: Brice McPherson, Peter D. Killeen, Alex Lostetter, Robert Shaw, Brandon Passmore, Jared Hornberger, Tony M. Berry
  • Publication number: 20150216067
    Abstract: A power module with multiple equalized parallel power paths supporting multiple parallel bare die power devices constructed with low inductance equalized current paths for even current sharing and clean switching events. Wide low profile power contacts provide low inductance, short current paths, and large conductor cross section area provides for massive current carrying. An internal gate & source kelvin interconnection substrate is provided with individual ballast resistors and simple bolted construction. Gate drive connectors are provided on either left or right size of the module. The module is configurable as half bridge, full bridge, common source, and common drain topologies.
    Type: Application
    Filed: January 30, 2015
    Publication date: July 30, 2015
    Applicant: Arkansas Power Electronics International, Inc.
    Inventors: Brice McPherson, Peter D. Killeen, Alex Lostetter, Robert Shaw, Brandon Passmore, Jared Hornberger, Tony M. Berry
  • Patent number: 9095054
    Abstract: A four quadrant power module with lower substrate parallel power paths and upper substrate equidistant clock tree timing utilizing parallel leg construction in a captive fastener power module housing.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: July 28, 2015
    Assignee: Arkansas Power Electronics International, Inc.
    Inventors: Jack Bourne, Jared Hornberger, Alex Lostetter, Brice McPherson, Ty McNutt, Brad Reese, Marcelo Schupbach, Robert Shaw, Eric Cole, Leonard Schaper
  • Patent number: 7965522
    Abstract: High temperature gate driving circuits with improved noise resistance and minimized loss are implemented with high temperature components with a reduced size magnetic isolation transformer. Input broad-pulse width modulated signals are converted to offsetting narrow pulses to cross the reduced size magnetic transformer minimizing isolation losses. One embodiment teaches time and voltage offset narrow single pulses that control a set and reset regeneration of the pulse width output on the secondary side of the transformer. Another embodiment teaches multiple concurrent voltage offset pulses to cross the transformer and charge a threshold capacitor for both filtering noise and controlling the pulse width regeneration on the secondary side of the transformer.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: June 21, 2011
    Assignee: Arkansas Power Electronics International, Inc.
    Inventors: Jared Hornberger, Brad Reese, Edgar Cilio, Roberto Marcelo Schupbach, Alex Lostetter, Sharmila Mounce