Electric stepper motor

Details Electric stepper motor Electric stepper motor

1984-04-03

1985-05-14

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310268, H02K 3700

Patent

active

045174784

ABSTRACT:
An electric stepper motor of the type comprising an axially magnetized rotor disc and a plurality of elemental magnetic stator circuits is disclosed. Each elemental circuit is formed of two U-shaped portions arranged opposite each other, one of each U being in contact with the opposite U-end and the second U-end being spaced from the opposite one to form an air gap for the rotor disc, the centers of the ends forming the airgap being angularly shifted with respect to each of the U-ends in contact with each other so as to compensate the third and/or fifth harmonics in the torque due to the driving current.

REFERENCES:
patent: 3784850 (1974-01-01), Inaba et al.
patent: 3803431 (1974-04-01), Inaba et al.
patent: 3860842 (1975-01-01), Schwab
patent: 4387312 (1983-06-01), Oudet

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