Super Simple Adjustable LED Driver or Laser Driver

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About: My name is marjancho and I love electronics,makeing gadgets,hack and pranks.

Make your own driver for your led or laser diode,schematic is super simple just 2 components LM317 voltage regulator and adjustable trim pot 50 ohms.
The LM317 will be the current regulator,with trimm pot we gona set the desire current.

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4 Discussions

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miicchhii

4 years ago on Introduction

You can find the curcuit plan and dimensioning of a similiar driver here:

www.langeder.org/homemade-laser-driver-with-lm317/

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joran79

5 years ago on Introduction

I would sit the LED so it uses the reflector. This way it will only create a small lightbeam. Anywas a nice idea. Will use it for some projects. Thumbs up and in my favorites

1 reply