L.E.D.S How to?? - Overclock.net

xlastshotx · 02-22-08

Ok, I purchased a bunch of different l.e.d.s, my goal is to hopefully put a few l.e.d.s in my dvd drive, the problem is I really don't know were to draw power from to power the l.e.d.s.. and I don't know anything about powering leds. Everything I have tried results in burned out l.e.d.s. Do I need to run a resistor or something?.. I am very confused. I really want to learn how to make the l.e.d.s work, as I have a lot of ideas about places to put them. If someone could post a good walthrew or some advice it would be greatly appreciated.

crashovride02 · 02-22-08

Yes, you need to almost always use a resistor. They are current sensitive devices and will draw current if you let them. If I remember right anyway. If i'm wrong someone correct me!!

I stand corrected and I do it to myself!!! They are voltage sensitive. You always need a resistor though!! Check this out! Hope it helps.

keith27 · 02-23-08

LEDs are just diodes that emit light that we can see. So they do consume some power (usually 0.7v to 0.3v) but without a resistor of a sort you are basiclly creating a short in a circuit. A resistor is a MUST.

rybitski · 03-17-08

I registered for this frum just to correct this missconception about LEDs. LEDs use any where from 2-5 volts (typically) depending on the brightness. You cannot just slap a resistor in there and hope for your LED not to burn up. You have to use a formula (yes it requires simple math skills). When you buy your LEDs you need to know at least 2 things about them their opperating volatage and power consumption. (power consumption is usually 30 mA). For those of you that want to do it the easy way there is n online calculator: http://ourworld.compuserve.com/homep...Bowden/led.htm

hopefully this will help.

l V l · 03-17-08

Yup Yup, if current has no resistor, it will flow happily and plentiful causing a burn up of the device. Gotta limit the current going into it since it only needs a certain amount.

tbest · 03-17-08

Is this what you want to do?
http://www.overclock.net/case-mods-g...ae_ja_voo.html

*repo_man* · 03-25-08

Quote:

Originally Posted by tbest

Is this what you want to do?
http://www.overclock.net/case-mods-g...ae_ja_voo.html

I was looking for that mod the other day! thanks!!

Darin · 03-27-08

deja has a website where you can find all of his mod guides. think it's daejavoo.com or something.

*repo_man* · 03-27-08

Quote:

Originally Posted by Darin

deja has a website where you can find all of his mod guides. think it's daejavoo.com or something.

Correct.

Sum0n3 · 03-28-08

This is some good reading for anyone that wants to know the basics of electricity and leds. I learned off this guide myself close to 8 years ago..

http://metku.net/index.html?path=mod...oppi/index_eng

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L.E.D.S How to??

03-17-08	#4 (permalink)
rybitski New to Overclock.net Join Date: Mar 2008 Posts: 1 Rep: 2 Unique Rep: 2 Trader Rating: 0	I registered for this frum just to correct this missconception about LEDs. LEDs use any where from 2-5 volts (typically) depending on the brightness. You cannot just slap a resistor in there and hope for your LED not to burn up. You have to use a formula (yes it requires simple math skills). When you buy your LEDs you need to know at least 2 things about them their opperating volatage and power consumption. (power consumption is usually 30 mA). For those of you that want to do it the easy way there is n online calculator: http://ourworld.compuserve.com/homep...Bowden/led.htm hopefully this will help.

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