Step-by-step motor unit

Details Step-by-step motor unit Step-by-step motor unit

1983-09-07

1985-10-29

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 368157, H02K 2904

Patent

active

045502790

ABSTRACT:
To increase the speed of rotation of a step-by-step motor in the forward or reverse direction, the motor is driven at its "synchronism" speed.
For the motor to perform N steps at high speed involves applying a starting drive pulse that induces forward or reverse motion, then applying N-2 alternating maintenance pulses and finally applying a stopping pulse. Preferably, a circuit using the coupling coefficient of the motor as a servo-control parameter defines the instants at which the maintainance or stopping pulses are applied.

REFERENCES:
patent: 4030283 (1977-06-01), Sauthier et al.
patent: 4066947 (1978-01-01), Nakajima et al.
patent: 4382693 (1983-05-01), Tu Xuan
patent: 4398831 (1983-08-01), Fatton et al.

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