Re: [CAD_CAM_EDM_DRO] Re: Wall Wart for a Gecko

Quick thought regarding this:

Even wallwarts that say 5V often run higher. Test with a meter. This is
especially true if the wallwart was made for a battery charger.

Tom

On Wed, 21 Aug 2002, studleylee wrote:

> Hi,
> If I'm not mistaken..., the 5v( or gnd) is
> really referring to the
> opto setp/dir common and not used within the Gecko
> itself for logic. He derives internal voltages from the
> Vmotor using a HV regulator. So you could use
> higher volts( within reason ) as long as you
> limit the current to about 20mA max for the
> opto's internal LED's. Connections will also
> depend on the newer drive's setting for
> common anodes or cathodes of the optos.
>
> I'd recommend one Alan mentioned at 5v regulated and
> 300mA or better so you could drive other circuits
> and inputs if needed.
>
> -Lee ( just my $13 1/2 cents ;-}
>
>
> --- In CAD_CAM_EDM_DRO@y..., Tom Benedict <benedict@a...> wrote:
> > Man, I'd hope the Geckos would have onboard voltage regulators. A
> 7805
> > and some capacitors would go a long way toward not blowing out the
> > optoisolators.
> >
>
>
>
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