I am looking for a stepper motor driver that can handle up to 5A.
But most of stepper drivers i have seen can only handle up to 2A.
is there anyone who knows 5A or higher A stepper motor driver?
Many industrial stepper drivers will handle that. But they cost. have a look on eBay perhaps?
You might be able to pair up two high current h-bridges to do the job.
You need to look at the CNC scene, somewhere like this:-
They do drivers and kits.
Two of the below tle5206-2 h-bridges ($7 each from Digikey) might work.
At a buck an amp this might be worth a try.
Gecko make a 7 amp one.
http://www.geckodrive.com/geckodrive-step-motor-drives.html
I have just purchased one of their 3.5 amp stepper controllers because the Polou ones did not have enough grunt. I have not wired it up yet, too much to do!
I have not looked at the 7 amp ones but the one in bought (G251x) has a couple of terminals that you can attach an ordinary 1/4 watt resistor to limit the current. So assuming yours uses the same system, to limit it to 5 amps, just insert a 5 k resistor, but check the manual.
zoomkat:
You might be able to pair up two high current h-bridges to do the job.
No, you'd need four H-bridges to double up, a bipolar stepper uses two, one for each phase
MarkT:
zoomkat:
You might be able to pair up two high current h-bridges to do the job.No, you'd need four H-bridges to double up, a bipolar stepper uses two, one for each phase
You sure about that? Seems most of the common bipolar stepper drivers are dual h-bridge units.
These are good;
http://www.aliexpress.com/item/Stepper-Motor-CNC-Driver-2M982-7-8A-Controller-Router-Mill/446865388.html
a bit pricey, but its one of the cheapest you will get.
zoomkat:
MarkT:
zoomkat:
You might be able to pair up two high current h-bridges to do the job.No, you'd need four H-bridges to double up, a bipolar stepper uses two, one for each phase
You sure about that? Seems most of the common bipolar stepper drivers are dual h-bridge units.
Of course, that's why you need four to double-up the current handling - we're talking about
increasing the current-handling if you notice...