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Author Topic: PWM accuracy issues  (Read 3507 times)

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hobby horse

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PWM accuracy issues
« on: January 02, 2012, 17:45:59 PM »
Hi
I am looking for a little guidance with the following problem, its a question that i have been asked, on my college course.
I am not looking for all the answers, merely some advise from those in the know.


a DC stepper motor is connected to a PWM supply, the speed control is not as accurate as expected?

My question, what possible problems are there and any idea on solutions?

regards

_pike

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Re: PWM accuracy issues
« Reply #1 on: January 02, 2012, 23:57:13 PM »
Hello and welcome to the forum.Could you please be more spesific because i didn't really understand your question... :-[

kam

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Re: PWM accuracy issues
« Reply #2 on: January 03, 2012, 10:49:41 AM »
A stepper motor cannot be controlled with PWM pulses. A stepper motor requires some kind of stepper motor driver. If you connect a stepper to a simple PWM you will actually get no move.

How Stepper Motors Work