Permanent magnet type stepping motor

Details Permanent magnet type stepping motor Permanent magnet type stepping motor

1985-12-05

1987-06-23

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310156, 310168, H02K 3700

Patent

active

046755640

ABSTRACT:
A permanent magnet type stepping motor wherein number of magnetic poles provided radially on the inside periphery of a stator is 16, number of pole teeth provided on a rotor poles is (z) (wherein z=16 m.+-.4; (m) denotes a positive integer), 14 poles among 16 have pitch of (22.5.-+.45/z).degree. between their own pole teeth and corresponding pole teeth of adjacent poles and other two poles have pitch of (22.5.+-.315/z).degree. between their own pole teeth and corresponding pole teeth of adjacent poles.

REFERENCES:
patent: 4255696 (1981-03-01), Field
patent: 4339679 (1982-07-01), Urschel
patent: 4423343 (1983-12-01), Field

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