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Stepper motor increase rpm but keep torque

  1. Jul 10, 2014 #1
  2. jcsd
  3. Jul 10, 2014 #2

    Simon Bridge

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    Science Advisor
    Homework Helper

    increasing the voltage usually increases the rpm and the torque.
    Mind you, if the step timing is a constant then, although the motor spends less time doing each step, the average speed should stay the same.

    Changing the average speed of the motor, then, involves making more steps per second.
    So what controls that?
  4. Jul 10, 2014 #3


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    Gold Member

    Generally, increasing the voltage to the stepper motor is done to provide more torque. If undertorqued, the stepper motor will not advance to the next step, ie it will not turn.
  5. Jul 12, 2014 #4
    Your motor should have a torque-voltage-RPM curve given by the manufacturer. Your answer is there.
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