[sdiy] Basic circuit safety...

[cheater cheater]

Justin,
as for the wall wart connection, one thing you might consider is a
low-pass filter.

Also think about dc-decoupling through a transformer. But then, you
are pretty much rebuilding the PSU inside your case... so is there a
point to have a separate one?

switching mode power supplies can be built to shut down if wrong AC
mains voltage is detected.

Cheers
Damian

On Sat, Aug 2, 2008 at 2:18 PM, Justin Owen <juzowen at googlemail.com> wrote:
> And lastly - for now...
>
> I'd really appreciate some links, schematics, ideas for some basic circuit protection.
>
> Basically, for example, if someone was to plug an AC adapter into a DC socket - or if one of those multi-socket DC adapters went in with the tip and ring reversed, or if a 7809 suddenly found itself having to deal with 15 volts - what are some simple things I can do to at least minimise the damage that might be done to a circuit.
>
> I will admit that I've not done any of my own research on this one - I just figured there'd be a few people on here that look at this sort of thing as being as standard part of any decent power supply.
>
> And thanks again!
>
> Juz
>
>
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