Stepping motor

Details Stepping motor Stepping motor

1989-03-31

1990-10-16

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310181, 310254, H02K 3700

Patent

active

049637754

ABSTRACT:
A stepping motor includes stator coils on a stator sandwiched between a pair of covers, and a rotor shaft mounted for rotation on these covers and carrying a rotor composed of rotor yokes and rotor magnets. The rotor is rotated stepwise through a predetermined angle by drive signals supplied to the stator coils. The stator has stator magnets provided at an axially central position for cooperation with the rotor magnets, and the magnetic flux density in the gap between the stator and the rotor is increased by the stator magnets.

REFERENCES:
patent: 3757150 (1973-09-01), Benezech
patent: 4712028 (1987-12-01), Horber
A. P. Russell and I. E. D. Pickup, "Calculation of the Pull-Out Torque of Hybrid Stepping Motors in the Half-Step Mode", Electric Machines and Electromechanics, 7:103-114, (1982)--pp. 103-106.

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