Peter L. Peres wrote:
>
> > LED traffic lights
>
> Of course everyone realises that in the event of a major surge or EMP all
> the traffic lights will die. With or without switchers. (LEDs don't like
> reverse biasing).


Interesting! Would you suggest a reverse diode
across the LED array? Or better still a big zener
or specialty surge diode, this would protect for
both forward and backward surges, considering
there should be a fair series resistance anyway?
-Roman

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