BridgeLux 2200lm Regulator?

[purduephotog]

I may just be missing this... but when I searched the forums for Bridgelux I come up with nothing.

http://www.newark.com/bridgelux/bxra-w1200-00000/led-array/dp/45P5617

16.4V @ 1600ma.

Have these been covered under some other name?

 

[csshih]

I'll have to say, though..
those are some darn ugly chips :sick2:

 

[purduephotog]

I'll have to say, though..
those are some darn ugly chips :sick2:

Hey! If this guy is even half as good as it specs out to be he's gonna be my new favorite lamp!

From what I can tell those DX 9x array chips that are the 10W units are these chips- and we've got one down in the lab that's been burning for quite awhile- color temp is dead on, no drift, no luminance die off. Remind me to go check the numbers next Monday

I honestly can't figure out a way to power them- I've got a huge list of AC regulators from different manufacturers... must find some time to post it.

 

[HarryN]

Bridgelux is better known for providing LED die to other suppliers than for its own line of packaged products. I know their CTO reasonably well and he has been in the LED business a very long time. ( I should call him one of these days)

His specialty was reliability so it does not surprise me that you are seeing pretty stable results.

It looks like the package is designed for more of a forward emission pattern than lambertian (120 degrees) so that is good for some applications. With a Vf of 16.4 volts, it has to be 4 die in series - maybe some in parallel - not sure.

Association with DX - no idea.

As far as a driver, I think the Xitanium can do this if you want to go AC

http://ledsupply.com/xi-led120a0024v18f.php

And if you want to go DC, just use the one from taskled.com

http://taskled.com/cchipo.html

And if you want to go AC DC - then http://www.youtube.com/watch?v=k816dPQyPAM

 

[purduephotog]

Bridgelux is better known for providing LED die to other suppliers than for its own line of packaged products. I know their CTO reasonably well and he has been in the LED business a very long time. ( I should call him one of these days)

His specialty was reliability so it does not surprise me that you are seeing pretty stable results.

It looks like the package is designed for more of a forward emission pattern than lambertian (120 degrees) so that is good for some applications. With a Vf of 16.4 volts, it has to be 4 die in series - maybe some in parallel - not sure.

Association with DX - no idea.

As far as a driver, I think the Xitanium can do this if you want to go AC

http://ledsupply.com/xi-led120a0024v18f.php

And if you want to go DC, just use the one from taskled.com

http://taskled.com/cchipo.html

And if you want to go AC DC - then http://www.youtube.com/watch?v=k816dPQyPAM

Haha, I actually went to Youtube I wondered if that was what you were talking about.

I have a couple of the 40 watt Xitaniums- I wanted to get something better / closer in wattage as I'd hate to 'waste' all that extra power.

It's a pity there isn't a 12V unit- I could run it with the 60W xitanium.

 

[HarryN]

I could not find the specs on the Xitanium 60 watt version - do you have a link ? It was not obvious on their web site.

I try hard to under drive LEDs, as they are so much more efficient this way and thermal issues are relaxed. You could use the 25 watt driver with / without the dimmer, then run them at 1,000 ma vs 1,6000ma - the amount of lost light under "real" conditions might surprise you.

If the 60 watt version is still 24 v max limited but runs at a higher output current, it might still be enough to drive 2 of these in parallel.

 

[HarryN]

Nevermind - I found the 60, 80, and 100 watt versions on line. (not at their own web site though)

The 80 watt version might work for you if you need to power 3 at a time.