Small stepping motor

Details Small stepping motor Small stepping motor

1989-11-17

1991-11-26

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, 310 49R, H02K 112, H02K 3700

Patent

active

050685627

ABSTRACT:
A small stepping motor has a rotor comprised of a rotatably mounted and radially magnetized permanent magnet having a plurality of magnetic poles, a stator having a plurality of magnetic pole portions positioned to face the rotor, a coil wound around the stator, and a driving circuit for controlling the exciting current supplied to the coil. A leakage flux converging member is positioned in the vicinity of the stator so that leakage magnetic flux from the stator or the coil is converged by the leakage flux converging member so as to pass through the stator.

REFERENCES:
patent: 4009406 (1977-02-01), Inariba
patent: 4990806 (1991-02-01), Kikuchi et al.

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