Electromagnetic stepper motor

Details Electromagnetic stepper motor Electromagnetic stepper motor

1995-04-12

1996-12-17

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310181, 310154, H02K 2126, H02K 100, H02K 3700

Patent

active

055856802

ABSTRACT:
An electromagnetic stepper motor has a drum-type rotor rotatable about an axis and provided with a plurality of permanent magnets distributed over its circumference, a stator surrounding the rotor and comprising a plurality of permanent magnets and an electromagnet provided on each of the permanent magnets of the stator and connectable with a commutator, wherein each of the electromagnets including a plurality of electromagnet members located one after the other in a circumferential direction so that during an interaction of the permanent magnets of the rotor and the electromagnets of the stator the electromagnet members are switched on one after the other.

REFERENCES:
patent: 3610974 (1970-01-01), Kenyon
patent: 4217513 (1977-10-01), Kohzai et al.
patent: 4571528 (1986-02-01), McGee et al.
patent: 4999559 (1991-03-01), Katz
patent: 5015903 (1991-05-01), Hancock et al.
patent: 5345131 (1994-09-01), Torok
patent: 5448117 (1995-09-01), Elliott

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