Published On Apr 8, 2015
An explanation of what constant current sources are, and how to use an LM317 to build a constant current power supply that can power strings of LEDs and laser diodes.
LM317: http://amzn.to/2jvp5Vi
Switch mode current sources: http://amzn.to/1BOQjUe
Check out my webpage for more videos about electronics! http://www.afrotechmods.com
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