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nikosp
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Join Date: Feb 2011
Location: UK
Posts: 11

Controlling High Power LED with DALI or 1-10v

11/20/2012 10:29 AM

Hello, I am trying to control some high power LED modules (300-400W in total) but I want to be able to control them, preferably with DALI. I still can not find any suitable ballast (high power and DALI controlled) in the market. Does anyone have any ideas about it, or at least alternative ways to do it. I was thinking of having 2 or three of the 1-10v range in parallel connection and then try to control it as one. But I am not very confident it will be stable since the parallel connection will mess up the total resistance at the junction points. Any suggestions would be nice.
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Pathfinder Tags: 1-10 analog control DALI LED
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Anonymous Poster #1
#1

Re: Controlling High Power LED with DALI or 1-10v

11/20/2012 11:13 AM

http://www.acronymfinder.com/Digital-Addressable-Lighting-Interface-(DALI).html
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Joshi
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Join Date: Oct 2007
Location: India
Posts: 1246
Good Answers: 34
#2

Re: Controlling High Power LED with DALI or 1-10v

11/20/2012 11:30 AM

400 W high power and DALI controlled modules are available.
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nikosp
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Join Date: Feb 2011
Location: UK
Posts: 11
#3
In reply to #2

Re: Controlling High Power LED with DALI or 1-10v

11/20/2012 11:52 AM

Thank you for the fast reply Joshi but I did not give enough information, my mistake. The LED modules need a constant current of 400-450 mA. And this is the hard part, because I have found controlled power supplies for voltage fed LEDs. Of course there is always the option to try converting the voltage source to current source but I'd prefer to have a solution tested by manufacturer as it is.
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Joshi
Guru

Join Date: Oct 2007
Location: India
Posts: 1246
Good Answers: 34
#4
In reply to #3

Re: Controlling High Power LED with DALI or 1-10v

11/20/2012 12:48 PM

A few LINKS here are for constant current of 400-450 mA DALI led controllers. See to find out if this is what you require.
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nikosp
Active Contributor

Join Date: Feb 2011
Location: UK
Posts: 11
#5

Re: Controlling High Power LED with DALI or 1-10v

11/21/2012 9:45 AM

Thanks Joshi but I 've been through many google searches and combinations and unfortunately none gave me a satisfactory result. It is a difficult combination of all of the requirements. There can be many DALI high powered balalst, many DALI current drivers, but not a combination of the two. I guess we will have to design our own one or just go after the 1-10 solution. Thank you again for your help, really appreciate it!
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