Inrush and prevention? was Re: power supplies form those 24v transformers

Les,

I think this would be pretty useful info for the group...

care to elaborate?

Thank you in advance,

Ballendo

"Les Watts" wrote:

> Inrush refers to the extreme current surge that occurs
> when you first turn the supply. At that instant the capacitor
> appears as almost a total short.
>
> Transformer core saturation and winding resistance helps
> control this somewhat, but with really big supplies a little
> more help is needed to "soft start" the unit. It's not a big deal.
>
> Les