Re: Power Supply for LEDs
Hi Infinity,
This will help you as well http://led.linear1.org/led.wiz you can design an LED Array and you can say how many LED's you are using in the array and tell it what voltage you will be using (Some information about the LED is required and it will design the array and tell you what resistors to use.
Kind Regards
Bernie.
Re: Power Supply for LEDs
I am using an old PC power supply and I am quite satisfied. Cabling is very easy: for powering on you have to connect a blue cable to one of the black cables. Then each red cable with the black (ground) gives +5V and each yellow cable with the ground gives +12V.
You can find a lot of video on youtube showing how to connect the blue cable to power on.
Re: Power Supply for LEDs
What is the recommend method for connecting all those LEDs to the psu? Bus tie??? Direct???
Re: Power Supply for LEDs
I like to use busses. One for the positive and one for the negative. The sky is the limit though. Any connection you want can be used.
What are your LEDs for? If for backlighting, you may want to consider dimming. In that case, I would buy one of those $4 dollar dimmers on the net, connect it to the PSU via the bus, then connect the LEDs to it.
Re: Power Supply for LEDs
Thanks guys. So group all the same color wires together (red, black, yellow) from the PSU and connect them to separate buses. Then connect the negative wire from the leds to the negative bus, the positive to the positive bus. Right so far?
Wire in the switch and resistor for each led and that should do it I think. What gauge wire should I use for the led circuits?
It's for annuciators, not backlighting, though I may consider a dimmer.
Re: Power Supply for LEDs
[QUOTE=weyes;128901]I am using an old PC power supply and I am quite satisfied. Cabling is very easy: for powering on you have to connect a blue cable to one of the black cables. [/QUOTE
I think that should be the green wire and the black wire.
Re: Power Supply for LEDs
Quote:
Originally Posted by
tiburon
I think that should be the green wire and the black wire.
You're right it is the green wire: http://www.youtube.com/watch?v=u0OKm...eature=related
Re: Power Supply for LEDs