I have a two phase, 4 wire, bipolar stepper, rated at 1.6 volts and 3.5 amps. Do I need a driver that will deliver 7 amps (3.5 per phase) or just one that delivers 3.5A total? How many volts should I send to it?
Thanks.
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03-25-2006, 06:31 AM #1
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How many amps needed for my bipolar stepper?
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03-25-2006, 05:05 PM #2
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most drivers are rated per phase, i.e. a 2.5A driver handles 2.5A a bipolar motr that is 2.5A per phase. But I have seen some that are misleading. i.e. rate total peak current, which is a little deceptive. With a coil rating of 1.6V,you would get really nice performance out of a simple 32VDC power supply. i.e. a 24vac transformer, full wave rectifier, and a filter capacitor. Geckodrive recommends 3 to 25 times the coil rated voltage. so 1.6 x 25 is 40vdc for a top end. They have an excellent paper on their website: http://www.geckodrive.com/photos/Step_motor_basics.pdf
Phil, Still too many interests, too many projects, and not enough time!!!!!!!!
Vist my websites - http://pminmo.com & http://millpcbs.com
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03-25-2006, 06:23 PM #3
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Phil,
Thanks for the link. That really explains it all.
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