Re: Stepper motor interfaces
- From: Bryan Hackney <no@xxxxxxxxx>
- Date: Wed, 08 Feb 2006 18:07:15 GMT
Mr_D wrote:
Greetings,
I'm looking at an under-hood stepper motor interface application,
however I don't know the full specs of the system yet. In particular,
I'm assuming there are 2 basic approaches one invlovling the micro
provide the actual stepper pulses, and another where a dedicated chip
recieves commands from the micro, and off-loads the micro of the step
pulses.
Can someone point me to a good stable source for such stepper interface
chips, and perhaps tell me a little about their experience with them?
TIA,
-D
There are several considerations.
If you have a unipolar motor, and want to do full stepping, using
a very simple micro and n-channel MOSFETS provides a workable system.
If you have a bipolar motor, you need a bridge to drive it, and
such a config argues more for a dedicated driver chip.
If you want to do microstepping, that argues even more for a dedicated
driver chip.
http://www.trinamic.com/ - Have not used these, but they look very
good.
.
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- Stepper motor interfaces
- From: Mr_D
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