Dale.B wrote:
.......
>But what point would there be to limiting the current to 2A or more?  I know
>that would produce little black craters where LEDs used to be.  The
>objections I'm hearing raised are of the "what happens when your crystal
>stops oscillating and one column of LEDs gets stuck on?" variety.
>

Dale, you might also take a look at the polyswitch I mentioned
before. I don't know your ckt layout, but you could use 1 or many,
depending.

They have continuous ratings from 0.1A up to about 14A, with trip
currents at roughly 2X cont. The non-tripped resistances of these
devices ranges from 4.5ohm for 0.1A device to 0.002 ohm on the 14A.
They have extremely non-linear S-shaped characteristics, and when
tripped, R goes up by orders of magnitude.

- dan michaels
www.oricomtech.com
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