Talk:LED circuit

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Articles for deletion This article was nominated for deletion on 30 November 2007. The result of the discussion was redirect to light-emitting diode.

Closure of the deletion discussion was endorsed in a Deletion Review discussion on 11 Dec 2007.

Articles for deletion This article was nominated for deletion on 21 December 2007. The result of the discussion was speedy-close.

Contents

[edit] please share

If anyone has some circuit diagrams they would like to share, that would be very much appreciated. --Dan 13:56, 13 June 2006 (UTC)

[edit] No. of resistors required

Does every LED require it's own resister or only one resister per circuit? Say I want to create my own Christmas tree decoration. I have 100 green and 100 red LEDs. Can I just connect them end-to-end and have 1 or 200 resisters - or does each LED need to be on it's own individual circuit?

It's been done both ways. The purpose of the resistor in all cases is to limit the current through the LED (s) to prevent an overcurrent cascade (as the LED heats, internal resistance decreases...unchecked, this can cause the current to further increase and eventually burn - out the LED). A resistor will permit a "cap" to be put on the current going through the LED (assuming a constant voltage source). In series, only a single resistor would be used...but a precise calculation regarding the actual voltage supply would need to be performed. In parallel, a single series resistor can also be used (before the parallel branches). In this arrangement, though, subtle differences in current are likely from LED to LED. Often, though, this is seen as an economic trade - off to the "brute force" approach of using a single resistor for each parallel branch. For all practical purposes, a single resistor is sufficient regardless of the arrangement (series or parallel). Just make sure that you know the precise current and voltage specifications of the LED and to the math on what the voltage drop and current will ultimately be given your voltage source and the resistor chosen. —The preceding unsigned comment was added by 68.9.32.49 (talk) 12:10, 15 March 2007 (UTC).

[edit] more info

This is an odd article. There is about one thousand times as much to say about this subject. There should be lots of links to external resources, esp until the article is more than the bare basics.-69.87.203.17 23:35, 27 May 2007 (UTC)

[edit] DIY circuits

What are the best sources of detailed reviews of LED devices?
What are the best forums that discuss LEDs in great detail?
What circuits are used in commercial multi-LED lamps?

What are the best circuits for DIY experimentation?
Some resources:

Posted by Matthew Sun, 26 Feb 2006 LED lighting is becoming increasingly popular in ... household lighting. This article intends to be a comprehensive guide to their advantages, powering them, and creating dimming solutions.

* Why use LED lighting?
* Powering your LEDs with a DC source
* Using an AC source to drive LEDs
* Dimming your LEDs (with PWM)
* Purchasing LEDs
basic circuit discussion

By claude, Posted on Sun Jan 28th, 2007 a tutorial to making factory-made-look-a-like LED bulbs. about converting regular GU4(MR11) halogen bulbs to LED bulbs 12V 22-LED very detailed photos good discussion of line-voltage circuits (non-tech)

By commanda, Section Light Posted on Fri Apr 20th, 2007 constant current sources Extended discussion of circuit theory and practice

By clone477 Posted on Wed Oct 5th, 2005 Anyone design 120V AC LED Lighting?? serious theory/discussion/experience

Find out how to make your own LED spotlight bulbs 12VDC 22-LED Aluminum sheet, superglue, hotmelt good assembly photos

-69.87.203.17 00:07, 28 May 2007 (UTC)


[edit] Curious

Why is this article up for deletion? I'm not sure I understand.--Folk smith (talk) 01:27, 30 November 2007 (UTC)

[edit] Reliable source for definition

I didn't get a chance to participate in the AfD because it was closed two hours after being opened, so I didn't get a chance to suggest deletion. Is there a reliable source, other than examples in textbooks, to support that there exists a particular circuit commonly called the "LED circuit" or that "LED circuit" refers to a dedicated circuit for lighting an LED? Otherwise, this seems to me to be to just be a simple circuit containing an LED. Why not call it a "resistor circuit" or "voltage source circuit"? eaolson (talk) 04:49, 30 November 2007 (UTC)

[edit] DRV

I have opened a DRV on the close as redirect. Dhaluza (talk) 01:40, 6 December 2007 (UTC)

[edit] Merger/Redirect

This page currently boils down to "an LED circuit is a circuit with an LED in it". All the useful material has already been merged into the Light-emitting diode article where it has considerably more context and usefulness to the reader. What's left here seems entirely self-evident. I personally don't see any reasonable possibility of expansion and propose returning this page to the redirect state as the AFD discussion participants suggested. Rossami (talk) 16:14, 11 December 2007 (UTC)

I've added additional sources to expand on the typical applications of a LED in a circuit, and to show that the subject is covered as a stand-alone entity in RS. There is a developing category on analog circuits and this article should remain as a stand-alone piece in that context. Dhaluza (talk) 12:14, 29 December 2007 (UTC)