Matrix converter control system and ac motor drive embodying the same
CA 1263698 C · Owner: Aeg Westinghouse Industrial Automation Corporation · Inventors: Schauder, Colin D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A three-pulse UFC system uses three groups of three bilateral switches controlled according to a switch polarity pattern to generate AC currents to a load and a, deadband hysteresis having upper and lower limits is used to maintain the load current so as to match a reference current.
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
- Granted December 5, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 5, 2006.
- 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.