Motor drive

Details Motor drive Motor drive

1981-08-13

1983-12-27

Truhe, J. V.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, H02K 2904

Patent

active

044233663

ABSTRACT:
A stepper motor controller circuit is described. The circuit comprises four power transistors configured to drive current in either direction through a stepper motor winding. A series resistor senses instantaneous current and a chopper is used to limit this current to some predetermined maximum value. Eight diodes protect the circuit against reverse, current surges, and a flip-flop guarantees a minimum duty cycle.

REFERENCES:
patent: 3728598 (1973-04-01), May
patent: 4107593 (1978-08-01), Anderson
patent: 4208623 (1980-06-01), Leehhouts
patent: 4300223 (1981-11-01), Maire
patent: 4375049 (1983-02-01), Grandchavin
patent: 4601678 (1971-08-01), Abraham

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