Patents by Inventor Bradley J. Schumacher

Bradley J. Schumacher 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).

  • Multiphase power converters having shared magnetic core sections
    Patent number: 9165707
    Abstract: A multiphase power converter includes a plurality of subconverters and a control circuit. Each subconverter has an input circuit, an output circuit, and a magnetic core coupling the input circuit to the output circuit. The magnetic core of at least one of the plurality of subconverters has a core section that is shared by the magnetic core of another one of the plurality of subconverters. The control circuit is configured to operate the input circuits of the plurality of subconverters with different phases. The magnetic cores may be cores of a transformer, a coupled inductor, etc.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 20, 2015
    Assignee: Astec International Limited
    Inventors: Robert H. Kippley, Bradley J. Schumacher, Andreas Stiedl, Kwong Kei Chin
  • Compact isolated switching power converters
    Patent number: 8897029
    Abstract: An isolated switching power converter includes a power isolation transformer having at least one primary winding, at least one secondary winding and a plurality of sides, a first power board mechanically coupled to a first side of the transformer, and a second power board mechanically coupled to a second side of the transformer. The first power board includes a primary side circuit electrically coupled to the at least one primary winding, and the second power board includes a secondary side circuit electrically coupled to the at least one secondary winding.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 25, 2014
    Assignee: Astec International Limited
    Inventors: Robert H. Kippley, Bradley J. Schumacher, Gary P. Magnuson, Kwong K. Chin
  • MULTIPHASE POWER CONVERTERS HAVING SHARED MAGNETIC CORE SECTIONS
    Publication number: 20130083575
    Abstract: A multiphase power converter includes a plurality of subconverters and a control circuit. Each subconverter has an input circuit, an output circuit, and a magnetic core coupling the input circuit to the output circuit. The magnetic core of at least one of the plurality of subconverters has a core section that is shared by the magnetic core of another one of the plurality of subconverters. The control circuit is configured to operate the input circuits of the plurality of subconverters with different phases. The magnetic cores may be cores of a transformer, a coupled inductor, etc.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Inventors: Robert H. Kippley, Bradley J. Schumacher, Andreas Stiedl, Kwong Kei Chin
  • COMPACT ISOLATED SWITCHING POWER CONVERTERS
    Publication number: 20130077276
    Abstract: An isolated switching power converter includes a power isolation transformer having at least one primary winding, at least one secondary winding and a plurality of sides, a first power board mechanically coupled to a first side of the transformer, and a second power board mechanically coupled to a second side of the transformer. The first power board includes a primary side circuit electrically coupled to the at least one primary winding, and the second power board includes a secondary side circuit electrically coupled to the at least one secondary winding.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: Astec International Limited
    Inventors: Robert H. Kippley, Bradley J. Schumacher, Gary P. Magnuson, Kwong Kei Chin