Switched reluctance motor regulation
CA 2489653 C · Owner: Rbc Manufacturing Corporation · Inventors: Branecky, Brian Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A motor control system and method switch between voltage control and angle control. The motor control system includes a comparator an angle controller, and a voltage , controller. The comparator is configured to compare a feedback speed and a commanded , speed and to generate a speed difference between the feedback speed and a command speed. , The angle controller is coupled to the comparator and is configured to receive the speed , difference, and to adjust a turn-on angle in response to the speed difference. The voltage , controller is configured to be activated when the turn-on angle reaches a retardation limit, and , to generate a limited voltage command.
Read the whole patent
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 December 7, 2004 and granted April 22, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.