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Luxeon LED help - Uni project

 
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spadez
Newbie


Joined: 21 Nov 2008
Posts: 1

PostPosted: Fri Nov 21, 2008 3:28 pm    Post subject: Luxeon LED help - Uni project Reply with quote

Hi!

Im new to this forum and I really need help with my project. I have been given three, 3W LED's to use in a lighting project. What I am going to do is have a green one, a blue one and a red one.

I want these luxeon stars to be enclosed in a lighting unit. Then I want to control all three of these luxeon stars as one entity, using a knob or dial to change the colour when it is twisted. Another possibility is to have a digital PIC controled way of changing the colour.. It will do this by varying the brightness of the LEDS to create the different colours (i.e if the green is dimmed the light will look more purple).

I need a circuit board to do this. I also need the board to allow the luxeons to be fully lit (as apparently 350ma wont lit the luxeons to their full potential). Ive looked everywhere. Can someone please help me out.

James
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Alan
Site Admin


Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Mon Nov 24, 2008 12:20 am    Post subject: Re: Luxeon LED help - Uni project Reply with quote

spadez wrote:
Hi!

Im new to this forum and I really need help with my project. I have been given three, 3W LED's to use in a lighting project. What I am going to do is have a green one, a blue one and a red one.

I want these luxeon stars to be enclosed in a lighting unit. Then I want to control all three of these luxeon stars as one entity, using a knob or dial to change the colour when it is twisted. Another possibility is to have a digital PIC controled way of changing the colour.. It will do this by varying the brightness of the LEDS to create the different colours (i.e if the green is dimmed the light will look more purple).

I need a circuit board to do this. I also need the board to allow the luxeons to be fully lit (as apparently 350ma wont lit the luxeons to their full potential). Ive looked everywhere. Can someone please help me out.

James


Hi, Welcome to the forum.

I haven't seen a project that is exactly what you are looking for but there are many similar ones. Have a look at this one for some inspiration.
http://hackedgadgets.com/2006/11/27/pic-based-serial-controlled-rgb-led-pwm-driver/

For controlling that much current you will need to use a transistor that is big enough to switch that amount of current.
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Tekwiz
HG Contributor


Joined: 20 Oct 2008
Posts: 36
Location: Vancouver Island

PostPosted: Mon Nov 24, 2008 2:30 pm    Post subject: Reply with quote

I've already answered this question for you on another forum.
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