Control apparatus for ac rotary machine
CA 2654432 C · Owner: Kinpara, Yoshihiko · Inventors: Hatanaka, Keita; Kashima, Mitsuo; Arisawa, Kouichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Problem A control apparatus for an AC rotary machine in which , even under the temperature change of the AC rotary machine a , large change in the amplitude of an AC phase current is suppressed, and the AC rotary machine can be stably started is proposed. Means for Resolution Control means is configured so as to perform controls including a start control for an AC rotary machine, the control means operates in the start control to calculate a resistance drop component corresponding to the resistance drop of the AC rotary machine on the basis of a detection current, and to adjust the angular frequency of the AC output voltage on the basis of a subtraction value obtained by subtracting …
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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 June 29, 2006 and granted June 5, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.