Patents by Inventor Wolfgang R. Oestreicher

Wolfgang R. Oestreicher 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: 7652901
    Abstract: A power module is adapted to be connected to a voltage source and to supply power to a load. The power module includes a power transistor; and a gate controller for driving the power transistor. The gate controller includes a gate transformer, and an impulse generator that extends a negative drive phase of a gate voltage to the power transistor relative to a positive drive phase of the gate voltage to the power transistor.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: January 26, 2010
    Assignee: Huettinger Elektronik GmbH + Co. KG
    Inventors: Thomas Kirchmeier, Wolfgang R. Oestreicher
  • Patent number: 7440301
    Abstract: A power module is adapted to be connected to a voltage source and to supply power to a load. The power module includes a switching bridge that includes a first power transistor and a second power transistor, a first gate controller for driving the first power transistor and a second gate controller for driving the second power transistor. The first gage controller includes a first gate transformer, and a leakage inductance of the first gate transformer forms a resonant circuit with an input capacitance of the first power transistor. The second gate controller includes a second gate transformer, and a leakage inductance of the second gate transformer forms a resonant circuit with an input capacitance of the second power transistor.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: October 21, 2008
    Assignee: HUETTINGER Elektronik GmbH & Co. KG
    Inventors: Thomas Kirchmeier, Wolfgang R. Oestreicher