Considerations Regarding PWM Characteristics for Accurate Motor Control

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Since technology moved beyond micro, the accurate motor control became a challenge. Improvements were made at the level of each component of the motor controlling loop, but limitations still exist. The presented paper is focused on pulse width modulation, the most used method of conversion the computed digital signal into the analog voltage needed to excite the coils, in order to emphasize where limitations have to be overcome. In the end, some recommendations are made for improving the performances of the control loop.

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305-313

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July 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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