Marc,
I am not being critical. I would like to make my own driver board and just want to understand.
If you cut the jumper do you loose common ground between Arduino, Power Supply and Driver Board?
-BB
Meanwell LDD driver: for those who want to dim to 0 using Arduino
- Thread starter pwreef
- Start date
Marc,
I am not being critical. I would like to make my own driver board and just want to understand.
If you cut the jumper do you loose common ground between Arduino, Power Supply and Driver Board?
-BB
Idefixes
New member
No if you install jumper between two ground with using the 2 free pad on them. This way allow to no ground the RJ45 socket shielding.
Marc
shark boy
New member
I have been using the Recoms for a year and a half. When they came out they were great ( for that time ).
The downfall with them is they overheat easilly if you don't have your power supply voltage just right. I have never burned one up but I have gotten them so hot they pulse on and off. Also they are a little funky with pwm dimming. The analog dimming works great. If memory serves me they are limited to 36V? They are smaller than the LDD-H but larger than the LDD-Ls.
The clear choice for me is the LDDs. I can buy 5 LDDs for the price of 1 Recom.
I apologize if this is super off topic, but I finally wired everything up and am having an issue.
I'm testing a single 10w bridgelux led connected to my 4-up ldd board, power supply, and jarduino. When I plug in the power supply, the LED lights up, but it doesn't dim. It seems to be lit at about 50% power and doesn't move from there, despite of adjusting every led channel on the Jarduino.
I tried wiring it to a different LDD driver and an additional LDD board and driver I have, but I get the same results.
Any ideas on what the problem could be?
I'm testing a single 10w bridgelux led connected to my 4-up ldd board, power supply, and jarduino. When I plug in the power supply, the LED lights up, but it doesn't dim. It seems to be lit at about 50% power and doesn't move from there, despite of adjusting every led channel on the Jarduino.
I tried wiring it to a different LDD driver and an additional LDD board and driver I have, but I get the same results.
Any ideas on what the problem could be?
Ahh! I thought I read that on another thread. Ok so, the ground wire from the arduino would go to a vin- on the ldd board? And would I just need one ground cable connected for all four drivers on the board?
Thank you very much! That fixed the problem!!
crsswift70
Active member
I am planning on running 50 Bridgelux 3W LED's that are all rated for 700ma. I just stumbled on these LDD drivers last night and have tried to cram in some reading. I am not going to dim the fixture at the moment but want the option in the future. Would these items work for running 4 strings of roughly 12LED's? Can these be dimmed with something other than a arduino or other contoller?
1x http://www.powergatellc.com/mean-well-se-200-48-power-supply.html
4x http://www.cdiweb.com/ProductDetail/LDD600HW-Mean-Well-USA/71321/pid=468#.UcIYo9hemUM
1x http://www.powergatellc.com/mean-well-se-200-48-power-supply.html
4x http://www.cdiweb.com/ProductDetail/LDD600HW-Mean-Well-USA/71321/pid=468#.UcIYo9hemUM
The power supply you linked will be perfect. It's rated for 4.4 amps, so you won't be taxing it much with your projected 2.4 amp load. The LDD's do require a 5V PWM signal for dimming. Why not use an Arduino? I can't think of any cheaper option.
crsswift70
Active member
But it is my understanding that the LDD's will just run at full power without a dimmer correct? So the 600ma will be fine for my 700ma LED's. I just haven't read enough to understand the whole controller thing/programming/wiring, etc.. i am doing that now, but i will need the light fairly quickly and want to get everything ordered.
that is correct. they are on full power with no dimmer connected. they can also be dimmed manually using a knob style dimmer if you hook it up right, but unless you have one it's almost as cheap to buy an arduino. there are plenty of controller projects on RC that aren't terribly complex to follow along and build. though some of them require a lot of reading to get thru them, LOL
it wouldn't be advisable as that would likely over tax the regulator on the board. you can run the fan directly off the wall wart powering the arduino if it has enough power to run both? you could then turn the fan on and of using the arduino and a simple circuit if you wanted.
I guess running it off the wall wart would be my best bet. Would I just connect the two wires on it?
Universal adapter? All LDD-H drivers, regardless of current rating, share the same pin out and will plug in directly to the 4up PcB.
The LDD-L is the smaller version and does not share the same pin out as it's larger LDD-H brother. That's why I posted a PcB design that was cross compatible with both the LDD-H and LDD-L drivers.
