Control circuit for an electric motor without a collector

Details Control circuit for an electric motor without a collector Control circuit for an electric motor without a collector

1990-11-13

1993-03-16

Witkowski, Stanley J.

Electricity: motive power systems

Switched reluctance motor commutation control

318439, H02P 800

Patent

active

051947870

ABSTRACT:
The present invention is concerned with a control circuit for an electric motor without a collector, of the type comprising a rotor magnetized in such a manner as to display at least one pair of magnetic poles, and a stator provided with a two- or a polyphase winding comprising several elementary coils of the same impedance, this circuit comprising electronic commutation means arranged for connecting selectively the elementary coils according to a cycle of successive supply states, to the terminals of a current source, under the effect of a commutation control signal, means for detecting the voltages appearing at the terminals of elementary coils or of groups of elementary coils and means for generating from the detected voltages, the commutation control signal.

REFERENCES:
patent: 3831072 (1974-08-01), Tanikoshi
patent: 4608958 (1986-09-01), Sakakibara et al.
patent: 4799002 (1987-05-01), Matsumoto
patent: 4888533 (1989-12-01), Gotoh et al.
patent: 4900993 (1990-02-01), Yasohara et al.
patent: 5032781 (1991-07-01), Kronenberg

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