LED Tutorial and resistor calculator.

Gonzowerke · Post by **Gonzowerke** » Tue Aug 05, 2008 5:47 pm

Found these while looking for other info.

The calculator makes it Soooooooo easy!

http://ledcalc.com/#calc

And the tutorial isn't bad either.

http://www.theledlight.com/ledcircuits.html

USS Atlantis · Post by **USS Atlantis** » Tue Aug 05, 2008 5:58 pm

That's not a bad one

One I use also allows you to calculate the resistor based on how much light output you want from the LED

Uses for this?

Say you only have LED's rated at 5000mcd (milli-candles) but you want to run them at 1/3 intensity

Plug in the numbers and it'll tell you what resistor to use to bring the light output down to 1660mcd

Take a gander

http://www.ngineering.com/LED_Calculators.htm

macfrank · Post by **macfrank** » Tue Aug 05, 2008 6:27 pm

The LED Center has two calculators the single LED calculator and a series/parallel array calculator. The second calculator is more useful, since it can do a single LED just as easily.

Frank

DLMatthys · Post by **DLMatthys** » Thu Aug 07, 2008 8:39 am

Thanks for that link to the calculators, Frank.
It's easier and more detailed than the other Java Script calcs I have used. Got it marked down as a favorite!