Miniature brushless motor

Details Miniature brushless motor Miniature brushless motor

1974-12-17

1976-10-26

Rubinson, Gene Z.

Electricity: motive power systems

Switched reluctance motor commutation control

H02K 2900

Patent

active

039886549

ABSTRACT:
A miniature brushless motor in which driving coils and magnetically responsive elements such as Hall elements are disposed around a permanent magnet rotor. An output appears from the successive Hall elements detecting the rotating position of the permanent magnet rotor so as to control the current supplied to the driving coils. In the brushless motor, the portion of the permanent magnet rotor opposed to the Hall elements is magnetized through an angle which is selected to be smaller than the angle through which the rotor portion opposed to the driving coils is magnetized.

REFERENCES:
patent: 3159777 (1964-12-01), Manteuffel
patent: 3549967 (1970-12-01), Uemura
patent: 3864610 (1975-02-01), Kawamoto et al.

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