Patents by Inventor Ernst Weidner

Ernst Weidner 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 of splitting a power supply
    Patent number: 5900724
    Abstract: Parallel circuit of power supplies, the output voltage of each power supply, in the event of the nominal current being exceeded during simultaneous operation of all the power supplies, becoming less by a predetermined amount which is greater than the tolerance of the output voltages at the nominal current.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: May 4, 1999
    Assignee: Siemens Nixdorf Informationssysteme Aktiengesellschaft
    Inventors: Werner Pollmeier, Ernst Weidner
  • Buffered DC power supply system
    Patent number: 5698908
    Abstract: Power supply system having a buffered intermediate voltage which is supplied by an auxiliary voltage source in the event of failure of a principal voltage source, there being generated from the intermediate voltage by comparison with a threshold value a digital failure signal which both controls the auxiliary voltage source and is used to form a final failure signal.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: December 16, 1997
    Assignee: Siemens Nixdorf Informationssysteme AG
    Inventors: Werner Pollmeier, Josef Schuck, Ernst Weidner