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View Full Version : How do I wire up this inverter, with an LED?



JaysFreaky
01-28-2006, 02:37 AM
http://www.fd-studios.net/files/omg.JPG

Now I know the white wires go to the Mono Jack, and the black and red wires connected to the battery pad are for the battery, but I have 2 extra black wires coming out of the inverter. I'm guessing that's for the switch?

Now I just bought a green LED, so I want it to light up whenever the saber's on. Would I just cut the red and black wire from the battery pad, and solder the LED cables onto those, or would I have them to the switch or what? [xx(]

Thanks for the help!

LAN-ED-TUL
01-28-2006, 04:14 AM
http://www.thecustomsabershop.com/sabers/forum/topic.asp?TOPIC_ID=72

and
http://www.thecustomsabershop.com/sabers/forum/topic.asp?TOPIC_ID=292
and
http://www.thecustomsabershop.com/sabers/forum/topic.asp?TOPIC_ID=15

look here and see if that answers your question.

You dont know the POWER, of the dark side...

JaysFreaky
01-28-2006, 04:20 AM
Okay, so I take one of the switch wires, grab the positive side of the led (red?) and then wire the negative side of the led (black?) to the negative battery wire (black?)?

Would I need any resistor's or things like that?

LAN-ED-TUL
01-28-2006, 04:30 AM
depends also on how many volts the led is.and if you want the protection factor included. if you want the blow protection then i'd go with the diagram posted here:

http://www.thecustomsabershop.com/sabers/forum/topic.asp?TOPIC_ID=72

that first resistor next to the switch should be the one you will need, i just dont know what size it would have to be, depends on led voltage. you could use the led voltage calculator to find out.

im not sure on the inverter with the extra wires for switch tho. that is refered to in the other link. so you might want to follow that one instead.
http://www.thecustomsabershop.com/sabers/forum/topic.asp?TOPIC_ID=292&SearchTerms=el,wiring
You dont know the POWER, of the dark side...

Strydur
01-28-2006, 11:53 AM
Let me wake up and I will go take a picture for you.

Tim
The Custom Saber Shop

JaysFreaky
01-28-2006, 12:33 PM
Alright, cool.

EDIT: While we're on talking about this, what size hole is good for mounting the power switch? I've got every other hole's size figured out but that one.

Strydur
01-28-2006, 01:37 PM
http://thecustomsabershop.com/sabers/scripts/omg2.jpg

Make sure you connect the led to the switch wire as I showed or your led will always be on.

Tim
The Custom Saber Shop

JaysFreaky
01-28-2006, 02:28 PM
What size resistor should I use? I've seen several so far. :x

Here are my LED specs, just in case you need them.
Forward supply voltage: 12.0 typ., 16.0 max.
Forward supply current: 12mA typ., 20mA max.

Strydur
01-28-2006, 02:44 PM
depends on input voltage


Tim
The Custom Saber Shop

JaysFreaky
01-28-2006, 03:02 PM
Using a 9v battery.

Strydur
01-28-2006, 04:57 PM
Forward supply voltage: 12.0 typ., 16.0 max.

You cant power a 12v led off of 9v

Tim
The Custom Saber Shop

yodaphet
01-28-2006, 06:11 PM
I too am having issues getting this LED to work. I wired it up as the diagram shows, the blade lights up, but the LED is dead. I took it out and played around with it, tried some different resistance, and no change. The only way I was able to get my LED to light was direct to the power suppy, and that resulted in an explosion...[B)]

I have a 5v.30mA.300mcd LED
I am using 18v power supply.
According to the calculator, I should be using a 470k, 1/2 watt, 5% tolerance.

I thought maybe the 470K was too much, so I tried a 220k, and still no light.
Any ideas?

Strydur
01-28-2006, 06:29 PM
Are you sure you hooked the LED up correctly? There is a negative and positive side to it.

Tim
The Custom Saber Shop

yodaphet
01-28-2006, 08:23 PM
Yes I am pretty sure of it. I even tried reversing it to see, and no change.

Basicaly the longer prong is + and the shorter prong is - right?

I wired it as follows:
Red wire from the inverter I branched off and wired to the resistor, and then to the positive of the LED.

The short prong or negative of the LED I wired with one side of the switch.

Do the resistors have polarity or does it not matter? And it shouldnt matter which switch lead it is connected to right?

Strydur
01-28-2006, 09:09 PM
It does matter which switch wire since one side is on all the time and the other is off when the switch is off. Check that the led works by hooking it directly to the battery but put the resistor in-line so you dont blow it. Also if you can take a picture and post it or send it to me so I can see whats up.

Tim
The Custom Saber Shop

Strydur
01-28-2006, 09:16 PM
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">I have a 5v.30mA.300mcd LED
I am using 18v power supply.
According to the calculator, I should be using a 470k, 1/2 watt, 5% tolerance.
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

5v 30mA led with 18v input you need

470 ohm
not
470k ohm

Tim
The Custom Saber Shop

JaysFreaky
01-29-2006, 01:26 AM
I was powering the LED with two AAs and that's only 3v.

Strydur
01-29-2006, 02:38 AM
Are you sure its a 12v LED then?


Tim
The Custom Saber Shop

JaysFreaky
01-29-2006, 02:42 AM
I have no clue. All I see is a forward (supply) voltage with a 12.0 typ next to it. >_>

yodaphet
01-29-2006, 06:30 PM
AH 470 and not 470K...That may be my issue then!
I will try it out. If it still doesnt work, I will take pic and send it to see where I am going wrong.
Thanks Tim!

morpheus1977
03-17-2006, 02:43 PM
now I plan on adding to LED's one solid and one flashing that should be possible correct? I all I have to do is add them in series accoring do the different diagrams I have been finding on the boards here?

Do-Clo
03-17-2006, 03:00 PM
Look back one page and you will see that Tim has already posted the wiring diagram to add an led to an el saber.

Do-Clo
Don't make me destroy you...

morpheus1977
03-17-2006, 11:45 PM
I know that I am just saying I should be able to do it with two in series thats all

Do-Clo
03-18-2006, 08:36 AM
Sorry about miss reading your question. If you wire the two leds in parallel with each having their own resistor it work work fine. I have used leds in series before and one tends to be brighter than the other one due to the voltage drop across the across the first led. You can also wire the leds in parallel using one rsistor but you will have to change the value of the resistor to account for double the current.

Do-Clo
Don't make me destroy you...