RE: [CAD_CAM_EDM_DRO] Stepper motor 101 was Re: Are steppers considered low frequency motors?

Hi,

So what about Linistepper?

http://techref.massmind.org/techref/io/stepper/linistep/index.htm

Appears to be an attempt to do a linear ramp (triangle?) to drive a stepper?

Alright, it's got a PIC on it (I like that), but I see two BIG resistors,
for a unipolar driver.

If we really want a sine wave, why don't we just use a linear amp and drive
it with a sine wave? Class A (B? even C?...) Wastes too much power I'll
bet.

Alan KM6VV

> ballendo:
> In half-stepping we do a little better job of approximating the sine
> wave, because we turn one OR two coils on at a time. This puts
> a "step" in the simulated sine wave, so it looks a little more like a
> complete sine wave. (Very little actually in appearance; but quite a
> bit better in performance)
>
> Microstepping is simply adding more and more "levels" of definition
> to the simulated sine waves that all stepper drivers use to create
> discrete steps of movement from these motors. And as the simulated
> sine wave gets better; so does motor performance at slow speeds.
>