Patents by Inventor Randy Stephenson

Randy Stephenson 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).

  • AC/DC power conversion system and method of manufacture of same
    Patent number: 9419538
    Abstract: A power converter has a transformer having three primary windings configured to receive respective phases of a three-phase alternating current (AC) input signal in a delta configuration and three secondary windings, each split into two portions, wherein the portions are coupled together in a regular hexagon. The power converter includes a rectifier having a first rectifier path coupled between taps of the secondary windings and a positive output of the power converter and a second rectifier path coupled between taps of the secondary windings and a negative output. One of the secondary windings may be reversed with respect to the other secondary windings. The primary windings may be split with a corresponding secondary winding sandwiched between portions of the primary. One of the paths may have a different inductance than the other path.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: August 16, 2016
    Assignee: Crane Electronics, Inc.
    Inventors: Kaz Furmanczyk, Randy Stephenson
  • AC/DC POWER CONVERSION SYSTEM AND METHOD OF MANUFACTURE OF SAME
    Publication number: 20140016356
    Abstract: A power converter has a transformer having three primary windings configured to receive respective phases of a three-phase alternating current (AC) input signal in a delta configuration and three secondary windings, each split into two portions, wherein the portions are coupled together in a regular hexagon. The power converter includes a rectifier having a first rectifier path coupled between taps of the secondary windings and a positive output of the power converter and a second rectifier path coupled between taps of the secondary windings and a negative output. One of the secondary windings may be reversed with respect to the other secondary windings. The primary windings may be split with a corresponding secondary winding sandwiched between portions of the primary. One of the paths may have a different inductance than the other path.
    Type: Application
    Filed: February 24, 2012
    Publication date: January 16, 2014
    Applicant: CRANE ELECTRONICS, INC.
    Inventors: Kaz Furmanczyk, Randy Stephenson