Patents by Inventor Marc Willomitzer

Marc Willomitzer 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).

  • Method for operating a converter circuit
    Patent number: 9385619
    Abstract: A method is disclosed for operating a converter circuit, in which controllable power semiconductor switches of the rectifier unit of a converter circuit are controlled by a rectifier switch signal and the controllable power semiconductor switches of the inverter unit of the converter circuit are controlled by an inverter switch signal. In order to reduce losses in the no-load state of the converter circuit, the rectifier switch signal is blocked in order to disconnect the controllable power semiconductor switches of the rectifier unit if defined conditions of the converter circuit are fulfilled.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: July 5, 2016
    Assignee: ABB TECHNOLOGY AG
    Inventors: Philippe Maibach, Thomas Schaad, Marc Willomitzer
  • METHOD FOR OPERATING A CONVERTER CIRCUIT
    Publication number: 20150124497
    Abstract: A method is disclosed for operating a converter circuit, in which controllable power semiconductor switches of the rectifier unit of a converter circuit are controlled by a rectifier switch signal and the controllable power semiconductor switches of the inverter unit of the converter circuit are controlled by an inverter switch signal. In order to reduce losses in the no-load state of the converter circuit, the rectifier switch signal is blocked in order to disconnect the controllable power semiconductor switches of the rectifier unit if defined conditions of the converter circuit are fulfilled.
    Type: Application
    Filed: June 6, 2012
    Publication date: May 7, 2015
    Applicant: ABB Technology AG
    Inventors: Philippe Maibach, Thomas Schaad, Marc Willomitzer