DIY Make Led Driver for Laser or Led Diode

25,458

93

6

Posted in TechnologyLeds

Introduction: DIY Make Led Driver for Laser or Led Diode

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

Led driver made of two componets LM317 regulator and one resistor,value of resistor is calculated by formula R=1.25/current you get the resistance of resistor for example in video I use 1.5ohms 2resistor in parralel each one is 3 ohms.
Watch the video how to make your own led driver

Share

Recommendations

  • Trash to Treasure

    Trash to Treasure
  • Science of Cooking

    Science of Cooking
  • Pocket-Sized Contest

    Pocket-Sized Contest
user

We have a be nice policy.
Please be positive and constructive.

Tips

Questions

6 Comments

Resistors in parallel don't add up. Only series resistors add together. right now you are using an equivalent resistance of .75 ohms.

2 replies

In fact he is using two 3 Ohms resistors put in parallel, which means an equivalent resistance of 1.5 Ohms.

Yeah I realized that later. The way I read it and the way it was pictured threw me off. I had a fail moment but he is indeed correct.

Great video, I found it very helpful thank you.
What song is playing?