Stepping motor's negative-phase braking control device

Details Stepping motor's negative-phase braking control device Stepping motor's negative-phase braking control device

1988-02-22

1989-08-29

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, H02P 800

Patent

active

048620513

ABSTRACT:
A negative-phase braking control device for accurately stopping a plural-phase stepping motor in a very short time. The negative-phase braking control is performed by comparing the present position signal value representing the position of a rotor of the motor with the signal values which the present position signal value should take at a target position and at a predetermined position before the target position and controlling the rotation of the motor in the forward and reverse directions in accordance with the result of the comparison.

REFERENCES:
patent: 3328658 (1967-06-01), Thompson
patent: 3345547 (1967-10-01), Dunne
patent: 4683408 (1987-07-01), Inoue et al.
patent: 4763054 (1988-08-01), Bundy

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