Method and circuit assembly for driving a stepper motor
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United States of America Patent
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Apr 11, 2017
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N/A
app pub date -
Jun 20, 2013
filing date -
Jun 20, 2012
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Abstract
A method and a circuit assembly for driving a 2-, 3- or more phase stepper motor by predetermined courses of current curves, especially for a microstep operation, is disclosed. For minimizing the memory capacity needed for storing supporting points of the course of the current curve by which the microsteps are realized, the course of the current curve is divided into a number of segments to which each a basic or main gradient between adjacent supporting points is assigned, so that for each of the supporting points only a deviation of the gradient at this supporting point from the related basic or main gradient has to be stored.
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