DIY Make Led Driver for Laser or Led Diode

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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

Supplies:

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6 Discussions

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AsdOmega

2 years ago

Nice one

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survivorwolf

6 years ago on Introduction

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

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.

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D-A-N

6 years ago on Introduction

Great video, I found it very helpful thank you.
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