Stepper motor drive circuit

Details Stepper motor drive circuit Stepper motor drive circuit

1989-07-19

1991-02-12

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 235462, 235467, 235472, H02P 800

Patent

active

049927175

ABSTRACT:
A drive circuit excites a stepper motor. A current steering network alternately conducts current through first one and then the other of a set of AC windings. A regulated current source excites the DC windings of the stepper motor such that magnitude of the resultant vector due to the current in the motor is substantially constant in time.

REFERENCES:
patent: 3631274 (1971-12-01), Stauder
patent: 3636317 (1972-01-01), Torrey
patent: 3774014 (1973-11-01), Berler
patent: 3818467 (1974-06-01), Willis
patent: 4025761 (1977-05-01), Hayosh et al.
patent: 4041322 (1977-08-01), Hayosh et al.
patent: 4387297 (1983-06-01), Swartz et al.
patent: 4496831 (1985-01-01), Swartz et al.
patent: 4593186 (1986-06-01), Swartz et al.
patent: 4612588 (1986-09-01), Tsukahara

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