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bharath boss
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Join Date: Feb 2012
Location: Tiruchirappalli
Posts: 39

Stepper Motor Question

04/23/2012 7:47 AM

Is ULN2803 driver IC is enough to drive 24 volt stepper motor(2-2 phase)?

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JohnDG
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#1

Re: stepper motor

04/23/2012 7:59 AM

Yes (maybe). What is the winding resistance?

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bharath boss
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#2
In reply to #1

Re: stepper motor

04/23/2012 5:18 PM

Am using bipolar stepper motor...... coil res 6.6 ohm

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JohnDG
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#3
In reply to #2

Re: stepper motor

04/23/2012 7:04 PM

Do you have anything to limit the current to the motor? If not, you have ~23V across 6.6Ω (when stationary), giving ~3.5A (which would fry the Darlington driver IC nicely).

Please give full details of your circuit if you want more help.

[And don't worry - Andy G will be along in a minute - he's the self-appointed Lord of Stepper Motors, and will no doubt be delighted to assist you].

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strongcrusher
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#4

Re: Stepper Motor Question

04/25/2012 6:30 AM

At the very strong
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