[sdiy] circuit protection question

[blacet at blacet.com]

I've been using this technique since the late 90's. In fact, it was up on
our Tech page for years.

It's inexpensive and I have never heard of a blown module or received one
back for repair.

Why don't any other companies use this? Too cheap? I dunno.

People WILL plug things in backwards, it's guaranteed.

John "the Guru" Blacet

> Here's a question for the gurus:
>
> Do you generally bother with circuit protection, specifically against
> power
> rail reversal?
>
> If so, which technique do you typically use?
>
> I'm thinking: power rail, to polyfuse, to reverse rectifier diode (e.g.,
> 1N4001) to ground, to circuit.  The diode will protect the circuit while
> the
> polyfuse trips.  Does this seem like overkill?
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>