Patents by Inventor Edwin Hielscher

Edwin Hielscher 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).

  • Power pack comprising resonant converter
    Patent number: 4896255
    Abstract: A resonant circuit successively assumes charging and discharging conditions which form the primary circuit of a transformer in a power pack constructed according to the principle of a resonant converter, and a switch-over pulse is generated after each initiation of the charging condition and depending on the existancee of current and/or voltage values for resonance in the resonant circuit, and the switch-over pulse ends the charging condition by using a switching means and initiates the discharging condition so as to produce an improved resonant converter.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: January 23, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventors: Manfred Schlenk, Edwin Hielscher, Werner Loges