Method of controlling a stepping motor

Details Method of controlling a stepping motor Method of controlling a stepping motor

1983-09-26

1985-08-20

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, H02K 2904

Patent

active

045366918

ABSTRACT:
A stepping motor having a plurality of phase windings and a rotor which is driven toward a desired position with selective variations of the lead interval between the energized phase windings and the current rotational position of the rotor. Two of the phase windings are alternately selected in a predetermined sequence for strongly accelerating or decelerating the rotor, and only one of the phase windings is energized while the rotor is rotated at a constant speed or is held at any rest position. Thus, the rotor is driven to the desired position in a short time and a substantial amount of power which is supplied to the phase windings for driving the rotor is saved.

REFERENCES:
patent: 4426608 (1984-01-01), Larson et al.
patent: 4469995 (1984-09-01), Chiang et al.

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