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Old 10-17-2010, 02:16 AM #33
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Default Re: Killed 2 LOC diodes last night, don't know why...

I now have a portable red laser Inside are 2x fully charged 14500's, LM317+3Ohms, On/Off button; long heatsink by Mohrenberg, thermal paste around Aixiz, teflon tape on the 650nm glass lens.

Lighting match
Beam with some smoke

I tried a new LD1117 with the 3 Ohm too, it works just as expected and putting out CC. I tried with diff loads, at this point my 2x10440 pack was putting out only 6.6V - LM317 just gave out on the 4 diode load. I would still be able to put 360mA through 4 diodes and 380mA through less with the 1117. So I think the original driver was messed up, misswired, all done by me... I will check it next time, I'm too happy about the big box with a laser


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405nm: PHR@125mA (link), PHR labby 30-125mA (link), $9 2xAAA (30mW?)
532nm: 40mW 1xAAA (link), 2xAAA (25mW?) (link)
650nm: LOC@390mA (link), LOC@415mA (link)

Last edited by comradmax; 10-17-2010 at 04:04 AM.
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Old 10-17-2010, 02:58 AM #34
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Default Re: Killed 2 LOC diodes last night, don't know why...

Nice job. Looks good. Congrats on your 1st DIY and being big enough to admit that you might have made the mistake.
You'll do well I'm sure.
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