Single step stepping motor controller

Details Single step stepping motor controller Single step stepping motor controller

1987-04-22

1988-07-12

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 318138, H01P 800

Patent

active

047572477

ABSTRACT:
A nonoscillatory single step operation of a stepping motor is obtained by using normal driving circuitry and voltage to start the stepping operation in the desired stepping direction and by simultaneously starting a timer which is adjusted in duration to correspond to the time it takes for the rotor to almost reach the null position. At that time an increased voltage, of the same polarity as the normal stepping voltage, is applied, so as to strongly lock the rotor to the null position with minimum oscillation.

REFERENCES:
patent: 3560821 (1971-02-01), Beling

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