On 22/02/2011 00:12, Dave Park wrote:
On Feb 21, 2011, at 2:02 PM, Tony Firshman<[email protected]> wrote:
And, have a good insulating backing plate, because there's nothing worse
than 40 amps of 12V shorting onto something metal in the case, or worse, to
something on a PCB...
Oh yes there is - a wet tongue.
Oh really? Wet tongued heal. Fried QLs do not self-repair. ;)
Though prolly not if they've had 40A @ 12V (480W) through them.......
Mind TBH, if I where powering QL+addons from an ATX I'd prolly put
apropreatly rated fuses in the cables between PSU and computer, after
all the sorts of currents that an AT/ATX PSU can supply could under
fault conditions cause the QL board to catch fire without ever over
strainging the PSU......
Common misconception: fuses are there to prevent shocks, they're not
they're there to melt/blow and break the circuit before it can become
damaged / catch fire.
Cheers.
Phill.
--
Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric !
"You can twist perceptions, but reality won't budge" -- Rush.
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