Patents by Inventor Claude Egger

Claude Egger 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: 4785208
    Abstract: A low-inductance anode-cathode R-C circuit for a gate-turn-off power thyristor, including circuit diodes, capacitors and line connections for connecting the R-C circuit to a power thyristor. By reducing the spray inductances of circuit diodes, capacitors and line connections of the turn-off unloading circuit of a table-shaped power thyristor (Th), which can be designed for loads of 2500 V and 1000 A, its additional breaking current can be increased and the pulse-peak voltage of the first steep rise of the anode-cathode voltage across the power thyristor, occurring when it is switched off, can be reduced. R-C circuit diodes, capacitors and, preferably, also the power thyristor, have the same axial component direction, that is to say they are arranged axially parallel or coaxially with respect to each other in a low-induction R-C circuit arrangement.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: November 15, 1988
    Assignee: BBC Brown, Boveri & Company, Limited
    Inventors: Claude Egger, Stefan Umbricht