Patents by Inventor Otto Vongehr

Otto Vongehr 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).

  • Current stabilizer with step-up transformer
    Patent number: 5751566
    Abstract: Constant-current regulators are required, for example, in systems for airfield lighting and have units for nominal-value presetting and actual-value detection as well as for actual value/nominal value comparison. According to the present invention, a constant-current regulator having a step-up transformer is designed in such a manner that the primary of the step-up transformer is assigned a unit for selection of a basic voltage, and in such a manner that a switch-mode regulator module supplies a power which is applied to the basic voltage.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: May 12, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventor: Otto Vongehr