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Stepper Bipolar Motor Position detect
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dimas_lilik



Joined: 13 Aug 2007
Posts: 53
Location: Indonesia
Post31 Aug 2009 16:52   

Stepper Bipolar Motor Position detect
Can some body help me, please

I need idea for scanning position pulsa of stepper motor.
Motor bipolar 1.8 deg. Controller 89s51
please help me
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Prototyp_V1.0



Joined: 03 Apr 2007
Posts: 156
Helped: 23
Location: Norway
Post31 Aug 2009 19:38   

Re: Stepper Bipolar Motor Position detect
I heve an idea. By using just four npn transistors you should be able to detect even slow movements. But this works best if the stepper has a rated voltage being as high as possible - 24V is good.

But then again - problem is that it will probably be too sensible or that it can miss a movement.
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haker_fox



Joined: 24 Jun 2009
Posts: 51
Helped: 4
Location: Russia, Irkutsk
Post01 Sep 2009 11:11   

Re: Stepper Bipolar Motor Position detect
Prototyp_V1.0 wrote:
I heve an idea. By using just four npn transistors you should be able to detect even slow movements. But this works best if the stepper has a rated voltage being as high as possible - 24V is good.

But then again - problem is that it will probably be too sensible or that it can miss a movement.

Therefore, dear dimas_lilik should use an encoder to measure the position. Or else any noise, slow movement can disturb an useful signal.
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