Patents by Inventor Karim Wassef

Karim Wassef 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: 20120297104
    Abstract: An intermediate bus architecture power system includes a bus converter that converts an input voltage into a bus voltage on an intermediate bus and a point-of-load converter that supplies an output voltage from the bus voltage on the intermediate bus. Additionally, the intermediate bus architecture power system includes a decision engine optimizing controller that controls a system variable to improve an overall system performance based on a monitored system variable or a system constraint. In another aspect, a method of operating an intermediate bus architecture power system includes converting an input voltage into a bus voltage on an intermediate bus and converting the bus voltage on the intermediate bus into an output voltage. The method also includes controlling a system variable to improve overall system performance based on a monitored system variable or a system constraint.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 22, 2012
    Applicant: General Electric
    Inventors: Vijayan J. Thottuvelil, Michael J. Model, Allen F. Rozman, Karim Wassef, Richard Hock
  • Patent number: 7372711
    Abstract: For use in a power converter having parallel power trains, a circuit for, and method of, reducing voltage spikes due to magnetizing current imbalances in the power trains and a power converter incorporating the circuit or the method. In one embodiment, the circuit includes: (1) a conductive bypass path coupling nodes between transformer secondary windings and inductors in each of the power trains and configured to provide an alternative path to redirect magnetizing current imbalances from the inductors and (2) a capacitor located in the conductive bypass path.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: May 13, 2008
    Assignee: Lineage Power Corporation
    Inventors: Raghothama Reddy, Karim Wassef
  • Publication number: 20070132538
    Abstract: An apparatus for establishing at least one turn for a magnetic circuit includes: (a) at least one first magnetic element oriented substantially about an axis generally between a first axial position and a second axial position; and (b) at least one second magnetic element coupled with at least one selected first magnetic element of the at least one first magnetic element generally at the second axial position. The at least one second magnetic element establishes at least one return magnetic path from the second axial position generally toward the first axial position. The at least one return magnetic path is generally about the axis.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 14, 2007
    Inventors: Robert Catalano, Robert Roessler, Karim Wassef
  • Publication number: 20060152950
    Abstract: For use in a power converter having parallel power trains, a circuit for, and method of, reducing voltage spikes due to magnetizing current imbalances in the power trains and a power converter incorporating the circuit or the method. In one embodiment, the circuit includes: (1) a conductive bypass path coupling nodes between transformer secondary windings and inductors in each of the power trains and configured to provide an alternative path to redirect magnetizing current imbalances from the inductors and (2) a capacitor located in the conductive bypass path.
    Type: Application
    Filed: January 11, 2005
    Publication date: July 13, 2006
    Applicant: Tyco Electronics Power Systems, Inc., A Nevada Corporation
    Inventors: Raghothama Reddy, Karim Wassef
  • Publication number: 20050088854
    Abstract: A multiple output converter, and related method of operation thereof, that includes a primary output and at least one auxiliary output. In one embodiment, the multiple output converter includes a transformer having a primary winding and at least one secondary winding. The multiple output converter also includes a switch, coupled to the primary winding, that impresses an input voltage across the transformer. A first output voltage of the multiple output converter is produced at the primary output via a magnetizing inductance associated with the transformer. The multiple output converter still further includes an output inductor coupled to the at least one secondary winding. A second output voltage of the multiple output converter is produced at the auxiliary output via the output inductor.
    Type: Application
    Filed: October 28, 2003
    Publication date: April 28, 2005
    Applicant: Tyco Electronics Power Systems, Inc. A Nevada Corporation
    Inventors: Ramanujam Ramabhadran, Karim Wassef