Stepper motor drive circuit

Details Stepper motor drive circuit Stepper motor drive circuit

1982-03-05

1984-05-22

Rubinson, G. Z.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, H02K 2904

Patent

active

044503946

ABSTRACT:
A simplified drive circuit for applying bipolar drive current to a stepper motor includes a switch for alternately connecting a first end of the stator winding between supply potential and ground. The second end of the winding is coupled to supply potential by a resistor and coupled to ground by the parallel combination of a second resistor and a capacitor. The capacitor alternately operates as a short circuit when supply potential is applied to the first end of the winding and as a battery when the first end of the winding is grounded.

REFERENCES:
patent: 3699413 (1972-10-01), Silva et al.
patent: 3903467 (1975-09-01), Eckardt
patent: 4025859 (1977-05-01), Smith
patent: 4253052 (1981-02-01), Meier
patent: 4306181 (1981-12-01), Welburn
"Electronic Devices & Circuit Theory", The Southeast Book Company, 3rd Edition, p. 205.
"Network Analysis & Synthesis", F. F. Kuo, John Wiley & Sons, Inc., 2nd Edition, pp. 106-107 & 128-129.
"Basic Circuit Theory", C. A. Desoer et al., McGraw-Hill Book Company, pp. 166-167.

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