Multiphase brushless DC motor using two Hall-effect generators

Details Multiphase brushless DC motor using two Hall-effect generators Multiphase brushless DC motor using two Hall-effect generators

1978-03-01

1979-08-14

Rubinson, Gene Z.

Electricity: motive power systems

Switched reluctance motor commutation control

H02K 2900

Patent

active

041646916

ABSTRACT:
In a multiphase brushless DC motor having a permanent magnet rotor, a plurality of stator windings and a pair of Hall-effect generators acting as electromagnetic sensors, the stator windings are successively energized by currents supplied from a respective one of a plurality of power transistors which are responsive to the conduction of a respective one of a plurality of switching transistors. The switching transistors are connected in pairs to form first and second differential amplifiers. The latter responds to the potential at the Hall voltage electrode of the respective Hall-effect generator relative to a potential at the junction point of the differential amplifier configuration.

REFERENCES:
patent: 3652909 (1972-03-01), Rainer et al.
patent: 3887844 (1975-06-01), Yoshida
patent: 3938014 (1976-02-01), Nakajima
patent: 4028598 (1977-06-01), Bergmans

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