Method and compensating device for compensating current oscillations
CA 1292511 C · Owner: Sadek, Kadry · Inventors: Dahler, Peter; Sadek, Kadry; Neidhart, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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of the invention, Method and compensating device for compensating current oscillations, To reduce unwanted current oscillations such as for example, of the second harmonic of the system frequency (fo), the firing angles (.alpha. 1 .alpha. 2) of a link-, circuit rectifier (1) and of a link-circuit inverter (2) are compensatingly acted on in push-pull mode. For this purpose, a direct-current link-circuit current signal (S5 S5'), which contains the instability or the current oscillation to be compensated, is fed by means of a current detector (5, 5') to a bandpass filter (16, 16', 16") which is tuned to the frequency (fo. fx) of the respective current oscillation. The phase of a bandpass …
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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
- Granted November 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 26, 2008.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.