Method for fault handling in a converter circuit for switching three voltage levels
CA 2567817 C · Owner: Knapp, Gerold · Inventors: Wieser, Rudolf; Hochstuhl, Gerhard; Meysenc, Luc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The document specifies a method for fault handling in a converter circuit for switching three voltage levels in which the converter circuit has a converter subsystem (1) provided for each phase (R,S,T) in which , a top fault current path (A) or a bottom fault current path (B) in the converter subsystem (1) is detected the top fault current path (A) running through the first, second, third and sixth power semiconductor switches (S1, S2, S3, S6) in the converter subsystem (1) or through the first and fifth power semiconductor switches (S1, S5) in the converter subsystem (1) and , the bottom fault current path (B) running through the second, third, fourth and fifth power semiconductor …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 11, 2005 and granted July 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 11, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.