Stepper motor feedback in position servo loop
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United States of America Patent
Stats
-
Feb 5, 1980
Grant Date -
N/A
app pub date -
Aug 4, 1975
filing date -
Aug 4, 1975
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The actual drive signals to a stepper motor which rotates a mechanical device provide low order bits used in place of the low order bits of a digital word derived from an analog position sensor, to provide an accurate feedback word for subtraction from a digital position command word so as to generate a position error signal to drive the stepper motor in a servo loop.
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Cited Art Landscape
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