Electric stepper motors

Details Electric stepper motors Electric stepper motors

1976-09-30

1978-07-11

Duggan, Donovan F.

Electricity: motive power systems

Open-loop stepping motor control systems

310 49, H02K 3700

Patent

active

041004736

ABSTRACT:
An electric stepper motor has in addition to the usual driving coils at least one additional coil wound on its stator and connected in a closed circuit. This additional coil damps any oscillations of the rotor. The closed circuit has a resistive value optimized to achieve maximum damping effect. Two or more such additional coils may be connected in a single closed circuit and a number of such closed circuits may be provided.

REFERENCES:
patent: 3385984 (1968-05-01), O'Regan
IBM Tech. Disclosure Bulletin; vol. 18, No. 12, 5/76.
IBM Tech. Disclosure Bulletin; vol. 10, No. 8, 1/68.
Radio and Electronic Engineer, vol. 41, No. 7, 7/71, pp. 302-308.

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