Two-pulse brushless d.c. motor with auxiliary rotor poles

Details Two-pulse brushless d.c. motor with auxiliary rotor poles Two-pulse brushless d.c. motor with auxiliary rotor poles

1985-05-10

1988-01-05

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 67R, H02K 2122

Patent

active

047178507

ABSTRACT:
In the case of a two-pulse brushless d.c. motor narrow auxiliary poles (81-84; 115-122) are provided in the region of the boundaries (44, 45) between neighboring main poles of the rotor, the auxiliary poles being at least in part of polarity opposite to that of the surrounding main poles of the rotor. As a result of this, one obtains an especially favorable functional dependence of the induced voltage upon rotor angular position.

REFERENCES:
patent: 4217508 (1980-08-01), Uzuka
patent: 4481440 (1984-11-01), Muller
patent: 4494028 (1985-01-01), Brown
patent: 4574211 (1986-03-01), Muller et al.

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