On 3/31/07, Rikard Bosnjakovic <rikard.bosnjakovic@gmail.com> wrote:
> For my next project I've just built a PSU using a small
> 9V-transformer. Hooking it up to a Graetz-bridge for rectification, I
> measure 9.5 volts over Vcc/GND using my DMM.
>
> Now I'm going to add filter caps. What I'm unsure of here is if
> 10v-ratings will work, or if 0.5 volts is a way too small safety
> margin. I have big (~4000uF) 10v-caps in my junkbox, and since the
> junkbox serve a purpose (using older but working components) I feel
> that I want to pick those instead of new 16v-rated caps instead.

So you're dimensioning the filtering caps using your left ear or your nose ?
:)

Do you have a clear picture what will be happening with your
transformer if you're using a small power one and a high value
filtering cap ?
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