Re: [CAD_CAM_EDM_DRO] Power supply question

Joachim,

I would look at the white paper on the gecko drive web page
www.geckodrive.com and go with his suggestions.

Bob Campbell

----- Original Message -----
From: <joachim.reif@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, February 19, 2003 8:35 AM
Subject: [CAD_CAM_EDM_DRO] Power supply question


> What kind of quality current does a stepper motor need?
>
> I have a transformator that gives 300VA and 18 Volts and I am trying
> to estimate the ripple in order to calculate the capacitor. First I
> wanted the ripple to be 2.5% but it makes the capacitor rather big.
>
> My driver is a chopper type build around the L297 and the L298.
> Should I take a higer procentage of ripple to keep the kapacitor
> smaller (and cheaper)?
>
> Any ideas friends???
>
> Joachim Reif
>
> Gothenburg, Sweden
>
>
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