Title: Stepping motor signal circuit

Abstract: A plural phase stepping motor control circuit in which damping is accomplished by energizing a previously energized phase prior to the expiration of the power cycle on a pair of other phases. The duration of the damping pulse is inversely proportional to the speed of operation. The logic involved allows for forward or reverse running. A sprocket latch circuit locks out spurious overshoot responses, such as may be caused by vibration, damaged tape, or other irrationality.

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Inventors: Yablonski, Robert E. (Orange, CA, US)

Application Number: 540290
Filing Date: 1975-01-10
Publication_date: 1976-08-10
Assignee: Electronic Engineering Company of California (Santa Ana, CA)
Primary Class(es): 318/696 318/685
Other Classes:
US Patent Ref:

3345547	Oct, 1967	Dunne	318/138.
3636429	Jan, 1972	Jakubowski	318/685.

Other Refs:
Primary Examiner: Schaefer, Robert K.
Assistant Examiner: Redman, John W.
Attorney: Lubcke; Harry R.