Stepping motor driver with mid-frequency stability control
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United States of America Patent
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-
Jun 23, 1987
Grant Date -
N/A
app pub date -
May 23, 1985
filing date -
May 23, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the disclosed stepping motor system a band pass filter extracts error signals from currents in a stepping motor driver, and a feedback system delays command pulses to the driver on the basis of the error signals. This suppresses mid-frequency instabilities in the operation of the stepping motor.
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