LED Center

Dave

Full time elf
Joined
May 17, 2010
Messages
130
Location
Perth
A work colleague showed me this site today. I haven't had a good look through it yet , but the link goes straight to a LED wiz.
For some of the less knowledgable people out there it might come in handy. http://led.linear1.org/led.wiz

Dave
 

newaisa

New elf
Joined
Sep 5, 2011
Messages
20
Resistance calculation

Hi guys,


I am new to LED board design. I am trying to build myself a small LED panel.


I have 25 LED connected in a series (5V 60mA) for each LED. I have a 48V,350W AC/DC power supply.


What resistor do I need to add into the series of 25 LED? Or do I need one?


Appreciate any feedback.
 

newaisa

New elf
Joined
Sep 5, 2011
Messages
20
Re: Resistance calculation

Thanks for the reply.


I only saw information for single color LED there. If I am using RGB, how will I find out forward voltage for my LED?
 

fasteddy

I have C.L.A.P
Global moderator
Joined
Apr 26, 2010
Messages
6,645
Location
Albion Park NSW
Re: Resistance calculation

newaisa said:
Thanks for the reply.


I only saw information for single color LED there. If I am using RGB, how will I find out forward voltage for my LED?
RGB Leds are actually 3 LEDs in the one form factor. so each colour is treated as an individual circuit
 
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