Method of stopping a stepping motor
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United States of America Patent
Stats
-
Sep 4, 1984
Grant Date -
N/A
app pub date -
Jul 19, 1982
filing date -
Jul 19, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of stopping a feedback-controlled stepping motor having a stator and a rotor wherein the drive of the stator field is leading the rotor by more than one step and the rotor is rotating with an angular velocity within a first range of values is performed by decreasing the drive lead of the stator field from its slewing value to another value whereby the angular velocity of the rotor decreases below the first range and sensing for the decrease of the angular velocity of the rotor to within a second range of values so that when the angular velocity of the rotor is within the second range of values the rotation of the stator field is stopped to brake the rotor.
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