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Old 01-22-2010, 04:37 PM #1
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Default laser diode variable driver

Hi i've a 150mW blue(405nm) laser diode...
I've already done a 150mA power supplier, but I want to
make another one that is variable from 10mA to 500mA...

1. Can i do it usin the LM317 and using a trimmer?
2. Does the diode work at a lower level of power (like 80mA)

thank


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Old 01-22-2010, 05:07 PM #2
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Default Re: laser diode variable driver

Yes to both, see this thread, still on the same page as yours.
It has schematics, too, just re-calculate the resistances for your purpose.

Help for a custom driver
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