Re: servo driver on a chip ?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Dennis Schmitz"
<denschmitz@...> wrote:

>
> I don't know of any single chip solutions to drive steppers that aren't
> married to a specific motor.

There is a family of chips at Allegro and also at Sanken, although
somehow they are the thru the same distributors. from microstepping
to full steps, and up to 3 amps and about 35 volts.

Not all are one chip solutions, some use one chip per phase.

> If you can find low-voltage, low-inductance
> steppers, you can use some single-chip DC/DC converters (integrated

FETs) as

> your drive and hook them up to the Robostix I mentioned before to

drive the

> windings. There's even enough CPU time to do resonance compensation. Not
> enough for four channels of PID, but enough to build in microstepping.
>
> BTW, software is the way to go.

Only if you know how to program. : (

>