Patents by Inventor Robert Callanan

Robert Callanan 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).

  • High speed rectifier circuit
    Patent number: 8681518
    Abstract: Provided is a rectifier circuit that includes a depletion mode semiconductor having an output connected to a rectified signal output node of the rectifier circuit and a hot carrier semiconductor diode having a cathode connected to a source node of the depletion mode semiconductor and an anode connected to a gate node of the depletion mode semiconductor. The rectifier may include an alternating current (AC) input node that is connected to the anode of the hot carrier semiconductor diode and the gate node of the depletion mode semiconductor and that is configured to receive an AC input signal.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: March 25, 2014
    Assignee: Cree, Inc.
    Inventors: Robert Callanan, Fatima Husna
  • High Speed Rectifier Circuit
    Publication number: 20110019450
    Abstract: Provided is a rectifier circuit that includes a depletion mode semiconductor having an output connected to a rectified signal output node of the rectifier circuit and a hot carrier semiconductor diode having a cathode connected to a source node of the depletion mode semiconductor and an anode connected to a gate node of the depletion mode semiconductor. The rectifier may include an alternating current (AC) input node that is connected to the anode of the hot carrier semiconductor diode and the gate node of the depletion mode semiconductor and that is configured to receive an AC input signal.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 27, 2011
    Inventors: Robert Callanan, Fatisma Husna