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- Dec 9, 2010
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About to get all my goodies in to make a DDL driver. Thought i had all my thoughts together when I just hit a kink. I've become unsure if I should put my pot right after the LM317 and before the resistor(s) like in this guide that so many people mention to beginners :
Laser driver - It can be done
Or if i should use a resistor across the LM317, before the pot like in this:
YouTube - DIY: How to build a laser diode driver
The second one seems more logical to me because the current will have been set at max and the pot will only adjust from max and downward.
Laser driver - It can be done
Or if i should use a resistor across the LM317, before the pot like in this:
YouTube - DIY: How to build a laser diode driver
The second one seems more logical to me because the current will have been set at max and the pot will only adjust from max and downward.