Stepper motor drive system

Details Stepper motor drive system Stepper motor drive system

1980-03-31

1982-03-09

Truhe, J. V.

Electricity: motive power systems

Open-loop stepping motor control systems

318432, G05B 1940

Patent

active

043191746

ABSTRACT:
A stepper motor damping control system. Damping is performed by switching the power supply connection(s) of energized motor phase windings alternatively ON and OFF at a predetermined relatively high fixed rate. Said switching is performed using a clock signal information for switching one way and an information denoting equality between a voltage substantially proportional to the current flowing through said motor phase windings with a predetermined sawtooth sloped reference signal synchronized with said clock signal for switching the other way.

REFERENCES:
patent: 3748554 (1973-07-01), McDonald
patent: 3750000 (1973-07-01), Bruckner et al.
patent: 3965406 (1976-06-01), Yablonski
patent: 4035708 (1977-07-01), Schaff
patent: 4091316 (1978-03-01), Friedman
patent: 4140955 (1979-02-01), Drabing
patent: 4255693 (1981-03-01), Keidl
Hughes et al., "Magnetic Damping in Stepping Motors," Proc. IEEE, vol. 122, No. 8, Aug. 1975, pp. 819-824.

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