Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1983-05-25
1984-07-10
Dobeck, B.
Electricity: motive power systems
Switched reluctance motor commutation control
318138, 318439, H02K 2904
Patent
active
044595204
ABSTRACT:
A driving circuit for a D.C. commutatorless motor comprises a rotor having a permanent magnet, a pair of Hall elements stator coils positive and negative power sources, power switching elements, where each of the stator coils has one terminal thereof grounded and the other terminal thereof coupled to the positive power source through one of the power switching elements and to the negative power source through another power switching element, a differential switching circuit for switching each of output terminals of the Hall elements with a difference of approximately .pi./2 radians in phase by an output signal thereof, and a difference signal producing circuit coupled between the power switching elements and the differential switching circuit, for producing a signal in accordance with a difference between two output signals having a difference of approximately .pi. radians in phase obtained from the differential switching circuit. A current in accordance with the signal from the difference signal producing circuit is applied to the respective stator coils.
REFERENCES:
patent: 4135120 (1979-01-01), Hoshimi et al.
patent: 4376261 (1983-03-01), Heide et al.
Dobeck B.
Ro Bentsu
Victor Company of Japan Ltd.
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