Re: Sinosidal Encoder signals to TTL signals converter

Sorry I ment it was on this site

If you go to the files section of this group, then go to Files >
CIRCUITS > Pulse Gen and Timing Circuits> analogue output encoder
interface.pdf

Its based on 1v peak to peak. As you can see it would produce three
outputs chanel A and B which are square wave quadrature (if you use
these you will loose resolution but might be ok for your purpose)
and a third analogue output which produces a linear ramp voltage
which is proportional to the interpolated position between the
sin/cos peaks ie lines on your encoder.

I started to build this but then had access to a cheap TTL based
encoder so did not complete it. I did find in the scrap (no manual
or pin outs) a proper (megabucks) interpolator. From an analysis of
the pcb it did look like it converted everything to digital via AtoD
converters.

If you really need to solve this you could try
www.solartronmetrology.com and look at their IBOX sine wave to
quadrature converter. Dont know the cost or the inputs and outputs.

Fred

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Babar <riet91@y...> wrote:
>
> I tried to find the "analog output encoder
> interface.pdf" on Gecko's website , but no luck could
> you please give me the link where I can find this
> file.
>
> Thanks and Regards
>
> Babar
>
>
> --- bazer_20002000 <Fredwick@b...> wrote:
>
> > If they are voltage ie 1v p to p you can try the
> > circuits designed
> > by Mariss in the circuits directory under "analog
> > output encoder
> > interface.pdf".
> > fred
> >
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, Babar
> > <riet91@y...> wrote:
> > >
> > > Hi All,
> > >
> > > Does anybody know how to convert the Sine wave
> > signals
> > > of Heidenhain ROD 450 encoder to the standard TTL
> > > signals. Is there any IC or circuit commercially
> > > available for this?
> > >
> > > Regards
> > >
> > > Babar
> > >
> > >
> > >
> > >
> > >
> > >
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