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LED-Wiz on 12V circuit
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Green Giant:
So I know the LED-Wiz is only designed to handle a 0-5V signal, but I have been having a dilemma with wanting to power some 0-12V special LEDs.

I wanted to run my primary idea across you guys.

Basically I wanted to run a 0-12V RGB full color spectrum with an LED_Wiz signal as easily as possible.  My plan is to use an opto-isolator simple circuit to relate the 0-5V signal into a 0-12V signal.  The system would derive the 5V and 12V signals from the computer power supply.

an example circuit can be found here:  http://ecelab.com/opto-level-shift.htm

Do you guys forsee any problems running this circuit?
drventure:
I don't believe you have to do this.

The LEDWiz has a connector for "External power". Actually, it's got several "banks" for external power.

The external power can be 5vdc, or 12vdc, or whatever.

The only restriction, I believe, is that, let's say you hook Bank 1 up to 12vdc, then all the LED's connected to bank 1 need to be wired for 12vdc.

Check the LEDWiz docs for details though. You'll want to read the stuff on the BANKS in particular.

The only normal reason for optoisolators or relays if if you're driving solenoids, IL Wire, or normal incandescent lamps, etc.

But you can also check directly with the LEDWiz guys, they're very helpful.
Green Giant:

--- Quote from: drventure on January 23, 2012, 11:53:16 am ---I don't believe you have to do this.

The LEDWiz has a connector for "External power". Actually, it's got several "banks" for external power.

The external power can be 5vdc, or 12vdc, or whatever.

The only restriction, I believe, is that, let's say you hook Bank 1 up to 12vdc, then all the LED's connected to bank 1 need to be wired for 12vdc.

Check the LEDWiz docs for details though. You'll want to read the stuff on the BANKS in particular.

The only normal reason for optoisolators or relays if if you're driving solenoids, IL Wire, or normal incandescent lamps, etc.

But you can also check directly with the LEDWiz guys, they're very helpful.

--- End quote ---
I probably should have referenced this earlier, but my LED-Wiz's were bought back in 2006 or 2007.  This optional bank1 and bank 2 thing didn't exist.

I just saw on another thread some info about this which I had no idea exists, but I am pretty sure my LED-Wiz's only support 5V across all the ports.
drventure:
Ah. Well, if the bank stuff isn't there, yeah, it gets trickier. I'll take another look at your circuit
drventure:
Yep, that circuit should do the trick.

Really, you could use an opto-isolator or a solid state relay (SSR), but then, a lot of SSRs actually use opto-isolators internally...

What sucks is that'll be a bit of wiring..
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