3-channel LED driver

[eric30]

Hello everyone,
So I'm French and I love your forum.
I am looking for information or someone who can help me with my project on my ramp led.
My leds are all in place on sinks and therefore expect the drivers.
I want a dimmable channels 3 card with 1 channel 770ma, 1200ma and 900mA.
If someone has already make this kind of driver or knows where to buy thank you for telling me.
Hope to hear from you.

PS: Sorry for my english ....

 

[NanoReefWanabe]

sounds to me like you need some LLD drivers, a power supply and a controller, there are many arduino based controllers out there you can buy…some are stand alone some work well with reef keepers or apex…at least i assume you want them to be controlled VIA a controller and not just with POTS.

 

[Daimyo68]

Needs more info to give a compete answer (what led are being used, leds per string, etc)

Just a basic idea:

Meanwell LDD1200L
Meanwell LDD1000H x 2 (drive one at 90% and the other at 77%)

Coralvue LDD Driverboard - LDD4

Power Supply - 4amp (You need to find your total wattage to be able to choose the PS).

Storm LED Controller

 

[eric30]

thank you,
I thought there, but the trouble is that if I have problem controller, or a power outage that put them all at 100%?

 

[mcgyvr]

thank you,
I thought there, but the trouble is that if I have problem controller, or a power outage that put them all at 100%?

If you have a power outage that puts them all at "OFF" (aka no power)

but yes there is always a possibility of any component/controller failure.
and your LEDs/heatsinks/drivers should be chosen that even if at 100% there isn't a problem.

LDD/pwm controller.. or just regular meanwell drivers (LPF series,etc..) with potentiometers if you don't want a controller.


You you should state how you have everything wired too and what the forward voltage per string/led is .

 

[eric30]

Thank you to you for your interest in my problem.

After several price request and view the number of LEDs, I'll actually go on LDD Meanwell drivers.

For leds I use:
- 64 Cree XML U3-1C
- 64 Philips Rebel ES part number LXML-PR02-A900
- 64 Philips Rebel ES part number LXML-PR02-A900
- 24 Violet UV LED SemiLEDs C35L-AU Color bin U70
- 12 Philips Rebel ES part number LXM3-PD01-0300
And all Will Be powered by:
- 2 Power Meanwell ERP 350-24

They are all connected in series in groups of six.

By cons I can not find a card for 1500L and 1000L LDD.

And as I suck in electronics, it's even harder ....

 

[mcgyvr]

Why only six in series? You will require way too many drivers that way..
Why only a 24V power supply..

Running more in series and a higher voltage power supply would be "better" (less $$$) assuming you don't have a specific reason for doing so..

 

[eric30]

I calculate all like that with two power supplies in case?
after it's no big deal that there are several driver.

 

[eric30]

Hi,
Well my project progresses.
I finally found a card for LDD1000 / 1500L:
https://www.ncimedia.com/store/product.php?productid=16606&cat=300&page=1

The only problem is that it does not deliver in France .....
Well I continue my research.

See you later.