Brushless direct current motor

Details Brushless direct current motor Brushless direct current motor

1979-08-27

1982-01-19

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 46, 310 67R, 310 68R, 310224, 310DIG3, 318138, H02K 2112

Patent

active

043119336

ABSTRACT:
A brushless D.C. motor has electrical power switched between the phase windings by means of a circuit which includes a plurality of hall effect switches. The hall effect switches are operated by a plurality of arcuate commutating magnets which are radially polarized and are disposed axially adjacent to field magnets which are also radially polarized. Ordinarily, the direction of radial polarization of the commutating magnets and the field magnets will be opposite.

REFERENCES:
patent: 3631272 (1971-12-01), Kirii
patent: 4011475 (1977-03-01), Schmider
patent: 4115715 (1978-09-01), Muller
patent: 4167671 (1979-09-01), Sorensen
patent: 4169990 (1979-10-01), Lerdman
patent: 4197489 (1980-04-01), Dunn

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