Control circuit for stepping motor
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United States of America Patent
Stats
-
Apr 17, 1984
Grant Date -
N/A
app pub date -
Sep 8, 1981
filing date -
Sep 6, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stepping motor-control circuit based on the micro-step control comprises an up-down-counter, a circuit for determining an excitation sequence for respective phases of the stepping motor in accordance with a count output of the counter, and a circuit for generating a stepped waveform excitation signal in accordance with the count output of the counter, so that the excitation state of each phase of the stepping motor is controlled in a stepped waveform consisting of a plurality of steps. The stepping motor is permitted to operate at high speed by raising the frequency of a reference clock signal applied thereto.
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