| 摘要 |
An electric step motor has a disc-shaped, axially magnetized rotor part exhibiting 2 N alternating magnetic poles on either side thereof, and a stator comprising two groups of elementary magnetic circuits each circuit forming an air gap for co-operation with said magnetized rotor part. Each elementary circuit is coupled with at least one electric coil of a plurality of electric coils, each coil being coupled with a plurality of elementary circuits of one of the groups of elementary circuits.
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