Hall element circuit for electronically commutating motor
CA 1163314 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Janssen, Johannes H.H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PHN.9644 14 5.9.80, "ABSTRACT":, "Electronically commutating motor". An electric machine with electronic commutation in which two Hall elements can be arranged at a tangential angle which is smaller than the phase difference ? which. is necessary between the energizing signals in order to obtain a correct energization of the motor in that, the energizing circuit is provided with a combining circuit for linearly combining the signals obtained from the Hall elements in order to obtain signals with a phase difference equal to ?.
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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 March 6, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 2001.
- 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
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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.