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- Feb 5, 2008
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Oh yeah I forgot some things:Thanks,
appreciated
Diagram (schematic) same as DDL driver, except a 1117 is used instead of 317, without potenciometer , 2x 10 ohms (those resistors and a pot is a stupidest thing I've ever heard), only 12 ohms of resistance TOTAL between OUT and ADJ,
Minimum input voltage = Vf of laser diode, plus Vdrop of a driver
meaning: 5 V + 1.4 V = 6.4 V
Fully charged 10440 is 4.2 V, 8.4 V total
average is 3.7 V, 7.4 V total
Minimum voltage is 3.2 V, 6.4 V total.
Aprox runtime ~ 2 hours on one charge .