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AC Line voltage powered LEDs?
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Beley:

--- Quote from: drventure on September 04, 2010, 02:33:30 pm ---Yeah, I'm more inclined to go with those little PS bricks that Ed and bkenobi pointed out.

That looks a lot safer. I can use standard twist nuts for the connections, as is typical for that kind of wiring.

Then, the thin wires for the leds only carry 12v.

--- End quote ---

--- Quote from: drventure on September 04, 2010, 04:06:46 pm ---Oh, I was planning on resistors for the LEDs, just like hooking em up to an LEDWiz. No worries there.

--- End quote ---

The power supplies that were linked to above are constant current power supplies , if you put a resistor in line (same as led wiz etc) the led will still get 330/320mA, these power supplies will increase the output voltage until 330mA is flowing (or it reaches its max output voltage), ~5v or ~12v respectively.  What you need is a power supply like these ones but with a ~20mA output (or whatever your Leds are rated for. Or a normal power supply (ie constant voltage) and wire it up using the appropriate resistor.




drventure:
Yikes. Not good.

But then, if the voltage just maxes out at the listed voltage (say 12v) then if I put a limiting resistor in, then it becomes a constant voltage (12v) PS right?

Or did I just totally waste my money on those bricks?  :-\

bkenobi:
Is this at all helpful?

http://www.zen22142.zen.co.uk/Circuits/Power/add-on.html
EightBySix:
Have you considered electroluminescent wire? It needs AC voltage to work and comes in a variety of voltages. You could get quite creative with it...
Beley:

--- Quote from: drventure on September 05, 2010, 08:40:54 pm ---....But then, if the voltage just maxes out at the listed voltage (say 12v) then if I put a limiting resistor in, then it becomes a constant voltage (12v) PS right?

Or did I just totally waste my money on those bricks?  :-\



--- End quote ---

In theory yes, in reality it will depend on how its built,  its quality and any built in protection. 

No protection -   It will keep increasing the voltage until it either reaches 330MA or burns out
some protection - will cap out at the max voltage and stay there <-- what you want
proper protection - will increase voltage until the max, then shut off, sensing overvoltage/open circuit


I would suggest buying one of thous tiny USB Charger that plug into the wall, they are usually just simple 5v powersupplys.  DX usally lets you changer your order if it hasent shipped yet
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