Re: Making AC to DC??

--- In CAD_CAM_EDM_DRO@y..., "resosys" <resosys@y...> wrote:

> --- In CAD_CAM_EDM_DRO@y..., "jeffdavis516" <cadman@p...> wrote:
> > I am wondering if there is any information out on the web or

maybe

> > from someone here about the hows and rules in making DC power
> > supplies?
>
> As for web resources, a quick google search should net some good
> sources.
>
> The general rule that I go by is:
>
> DC voltage will equal AC Volts * 1.4 after the bridge rectifier.

The

> capacitor is used to filter the ripple voltage down to a reasonable
> level and should not affect the final voltage much, if any.
>
> My current power supply project has a 40V toroidal transformer.
> After the bridge rectifier and cap, I am seeing 55-56V DC on a true
> RMS meter. I am using a 13000mfd 80V capacitor to filter.
>
> I'd also recommend reading this white paper:
>
> http://www.geckodrive.com/support/pdf/power_supplies.pdf
>
> After asking a very similar question on this forum, I was pointed

to

> this resource and it was very informative.
>
> Hope this helps a bit.
>
> Chris

YES!! That is just what I wanted to see. Thanks for the link to the
PDF. Marris sure has good info.

Jeff