Patents by Inventor Ferdinand Steinruck

Ferdinand Steinruck 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: 5705853
    Abstract: A power semiconductor module is specified in which at least one semiconductor chip, which is fitted on a baseplate, is made contact with by a respective contact plunger. The position of the contact plungers can be set individually in a manner corresponding to a distance between the semiconductor chips and a main connection which accommodates the contact plungers. The contact plungers are either subjected to pressure by means of a spring or fixed by means of a solder layer.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: January 6, 1998
    Assignee: Asea Brown Boveri AG
    Inventors: Kurt Faller, Toni Frey, Helmut Keser, Ferdinand Steinruck, Raymond Zehringer
  • Patent number: 5210451
    Abstract: A power semiconductor circuit comprises a gate-turn-off semiconductor component (FCTh1, FCTh2) having an anode, a cathode and a gate, a diode (D1, D2) and a drive circuit which is connected to the gate by a large-area, low-inductance stripline (11) and which generates a current pulse for turning off the semiconductor component. The diode (D1, D2) is arranged in series with the semiconductor component (FCTh1, FCTh2), specifically in such a way that the diode (D1, D2) and semiconductor component (FCTh1, FCTh2) form a quarter-bridge arm. Provided in parallel with the series circuit of the semiconductor component (FCTh1, FCTh2) and diode (D1, D2) is a low-inductance blocking capacitor (C1, C2) for absorbing the reverse recovery voltage peaks of the diode (D1, D2). The diode (D1, D2) and blocking capacitor (C1, C2) are arranged with low inductance and spatially immediately adjacent to the semiconductor component.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: May 11, 1993
    Assignee: Asea Brown Boveri Ltd.
    Inventors: Horst Gruning, Herve de Lambilly, Ferdinand Steinruck