Patents by Inventor Nathan Weise

Nathan Weise 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).

  • Soft switching power electronic transformer
    Patent number: 8446743
    Abstract: This patent document discloses power electronic transformers having a high-frequency link. An example apparatus include a transformer having a primary winding and a secondary winding, the transformer is configured to receive a primary power signal having a first frequency, a primary converter configured to selectively oscillate polarity of the primary windings with respect to the secondary windings at a second frequency, the second frequency substantially substantially higher than the first frequency, a secondary converter coupled to the secondary winding, the secondary converter configured to provide a load power signal using a high frequency power signal generated using the secondary winding. The secondary converter can be configured to reduce current flow in the primary winding when the polarity of the primary winding is switched, the reduced current follow is configured to reduce disturbances resulting from leakage inductance of the transformer.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: May 21, 2013
    Assignee: Regents of the University of Minnesota
    Inventors: Ranjan Kumar Gupta, Krushna Keshab Mohapatra, Ned Mohan, Gysler Castelino, Kaushik Basu, Nathan Weise
  • SOFT SWITCHING POWER ELECTRONIC TRANSFORMER
    Publication number: 20110007534
    Abstract: This patent document discloses power electronic transformers having a high-frequency link. An example apparatus include a transformer having a primary winding and a secondary winding, the transformer is configured to receive a primary power signal having a first frequency, a primary converter configured to selectively oscillate polarity of the primary windings with respect to the secondary windings at a second frequency, the second frequency substantially substantially higher than the first frequency, a secondary converter coupled to the secondary winding, the secondary converter configured to provide a load power signal using a high frequency power signal generated using the secondary winding. The secondary converter can be configured to reduce current flow in the primary winding when the polarity of the primary winding is switched, the reduced current follow is configured to reduce disturbances resulting from leakage inductance of the transformer.
    Type: Application
    Filed: July 12, 2010
    Publication date: January 13, 2011
    Applicant: Regents of the University of Minnesota
    Inventors: Ranjan Kumar Gupta, Krushna Keshab Mohapatra, Ned Mohan, Gysler Castelino, Kaushik Basu, Nathan Weise