[sdiy] circuit protection question

[Andre Majorel]

On 2010-12-13 22:40 -0800, David G. Dixon wrote:

> Do you generally bother with circuit protection, specifically
> against power rail reversal?
> 
> 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?

This is exactly what John Blacet does. Resettable fuse into
reversed 1N4001 to ground.

-- 
André Majorel http://www.teaser.fr/~amajorel/