Re: Wiring LEDs together


Harbor Fright 18vdc , $10 on special
but get the 1.8ah , not the smaller one .

White LEDs are .02 amps , for highest
eff' . DONT RUN AT .03 amps .

LM431 and some parts to make a flyback
to drive any voltage you need .
Flybacks need low inductance , or the
frequencey is too low .
Start with less than .001 Henry , more than
10 microHen'

I just saw a nice MOSFET to drive it ..

only $.10 each .
PMN45EN , Id=1.8 amps @ Vgs =2.5 v .
about .05 Rds .

BTW , anyone into ARM s/w ?


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