Dynamic pulse-width modulation motor control and medical device incorporating same
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United States of America Patent
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Mar 12, 2019
Grant Date -
Sep 15, 2016
app pub date -
May 23, 2016
filing date -
Mar 20, 2012
priority date (Note) -
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Abstract
Apparatus are provided for motor control systems and related medical devices. In one embodiment, a control system includes a motor having a rotor, a sensor to obtain a measured displacement that is influenced by rotation of the rotor, and a control module coupled to the sensor. The control module adjusts a duty cycle for a modulated voltage applied to the motor in response to a difference between an expected displacement and the measured displacement. The expected displacement is influenced by or otherwise corresponds to a commanded rotation of the rotor.
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