Posted 16 December 2007 - 01:51 PM
Posted 16 December 2007 - 05:48 PM
No, changing the switching speed should not significantly affect the current drawn by the motor. It will however, increase the switching losses in the drive.
There will be an increase in the capacitive current into the motor as at each switching transition, current flows to chare up the capacitance of the motor, but this is small compared to the steady state current into the motor.
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