Patents by Inventor Adrian Zuckerberger

Adrian Zuckerberger 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).

  • Patent number: 7499297
    Abstract: A polyphase converter circuit having p?3 phases (R, Y, B) and a converter circuit element provided for each phase (R, Y, B) is specified, each converter circuit element having a rectifier unit, a DC voltage circuit which is connected to the rectifier unit and an inverter unit which is connected to the DC voltage circuit. In addition, a first AC voltage output of each inverter unit forms a phase connection, and second AC voltage outputs of the inverter units are star-connected. In order to produce harmonics which are as low as possible with respect to the fundamental of the voltage and the current of an electrical AC voltage system which is connected on the input side to the converter circuit, n transformers are provided, each having a primary winding and m three-phase secondary windings, where n?2 and m?3.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: March 3, 2009
    Assignee: ABB Schweiz AG
    Inventors: Christian Stulz, Christoph Eichler, Erich Suter, Adrian Zuckerberger, Pieder Jörg, Thomas Berner
  • Publication number: 20070153555
    Abstract: A polyphase converter circuit having p?3 phases (R, Y, B) and a converter circuit element provided for each phase (R, Y, B) is specified, each converter circuit element having a rectifier unit, a DC voltage circuit which is connected to the rectifier unit and an inverter unit which is connected to the DC voltage circuit. In addition, a first AC voltage output of each inverter unit forms a phase connection, and second AC voltage outputs of the inverter units are star-connected. In order to produce harmonics which are as low as possible with respect to the fundamental of the voltage and the current of an electrical AC voltage system which is connected on the input side to the converter circuit, n transformers are provided, each having a primary winding and m three-phase secondary windings, where n?2 and m?3.
    Type: Application
    Filed: December 15, 2006
    Publication date: July 5, 2007
    Applicant: ABB Schweiz AG
    Inventors: Christian Stulz, Christoph Eichler, Erich Suter, Adrian Zuckerberger, Pieder Jorg, Thomas Berner