Re: Gecko connection to unipolar stepper??

The anti-parallel LED opto would work but for the fact all examples
I've seen are veryyyy slow.

Joking? Only half way. The drawback is 4 additional SOT-23 parts and
the fwd drop of 2 barrier diodes in the current path; about 0.8V.

Mariss



--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Alan Marconett" <KM6VV@...>
wrote:

>
> HI Mariss,
>
> Maybe use an opto with a pair of back to back LEDs, like in an

H11A817 (not

> necessarily this particular part). Probably not made in the HCPL-

2631

> series of optos.
>
> Alan KM6VV
> But wait, you were joking I think!
>
> >
> > Maybe I should put a Schottkey-diode full bridge across each opto-

LED

> > and call the common connection terminal "ANYTHING".:-)
> >
> > Mariss
> >
> >
>