Meanwell LDD driver: for those who want to dim to 0 using Arduino

O2Surplus said:
Thanks for the compliment. The PCB doesn't need to be modified to install the chip holders. Just buy DIL24-6 holders (for machined pins) and snip off the unused legs before soldering them down to the board. Something similar to this should work-


110-44-624-41-001000_sml.jpg
Click to expand...

Of course - the simplest answer, and most obvious!!
My excuse is that I'm new to all this and and didn't know if that was possible. Honest :headwallblue:
 
VeL said:
That could be a bit offtopic but I will really appreciate some help.
I am planning a new led built using LDD-700HW drivers controled by GHL Profilux computer with a LEDControl4Passive Module.
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Hello VeL you are on the right way.
Just tested 2 kOm resistor (think 1,5 kOm will be ok as well) with 12 volts power source and its working but the voltage of output signal by oscilloscope is about 12 volts. Even you use 10 v. the output signal will be about 10 v.
LDD drivers need about 6 volts.
So, my last solution is to use a zener diode in addition to resisor. Diode should be connected to the groung and to the signal. Zener diode should be for 5,6 volts (BZX55C5V6).
good luck
 
Soldering LDD to PCB?

Soldering LDD to PCB?

I've had my LDD's for a while and now I have my PCB's thanks to dwolson2. I was careful soldering the terminal blocks and LDD pins to the PCB. I made sure only one pin was soldered and not touching the pin next to it. I was looking at the front of the LDD and now I'm not sure if the pins that are connected with a line need to be soldered together? Any help would be appreciated.
 
If anyone has any spare LDD-H x 4 pcb boards, I would be happy to pay whatever makes it worth your while to send me one. I'm just trying to save myself the hassle of the whole ordering process when all I need is 1 board. I was planning a "simple build" involving led multichips, LDD-H drivers, and a typhon boostled controller when I came upon this thread. I was going to get the wired LDD-H drivers but using the PCB board seems like a great idea that would really clean up the light fixture.
 
bhazard451 said:
How sweet is this?

IMG_20121221_193312.jpg


Thanks very much to everyone here for making this possible. I think it looks great! Very professional looking and can make a clean installation.

I won't be able to test it until everything is wired up, which will probably be within a few weeks.
Click to expand...

Yes, it went together very well. Thanks again!

lddboard.jpg
 
I will be trying to run a display and frag tank lights.

I could use a 6 LDD control board or two fours if anyone has extras.
 
I too would like to get some of these boards. 2-4driver boards would be good. I'm also trying to find some LDD-1000H but can't find any other than the ones on mouser for $12 each. Anyone have another supplier?
 
Yeah, I've got a few emails out but have heard nothing yet either. I saw a while back someone ask about whether these fit on a protoshield for an Arduino. Has anyone tried this and if so how many can you fit on one?
 
Wow this is a Great thread most likly gonna go this route when I get the the LEDs in my new tank
 
WOW! it's 11:46 am x-mas eve and my door bell rings, wife open door see's no one, look down and it's my package, 3 LDD-700H, did not expect that on xmas eve. Good Job UPS!
 
Haha, yeah, I got my dosing pumps in this morning too. Great surprise cuz stuff from china just says expected delivery 12/21/12-1/10/13 and you never get any real time updates either.
 
I've found that I get shipments from china, korea or taiwan way faster then I get stuff from the west coast :(

Some of those chinese sellers with free shipping could be shipping me livestock it gets here so fast lol
 
Need help with the math

Need help with the math

I am hoping to use the LDD drivers to control my lighting needs. I am still fuzzy on the math. Can someone help me out with the formulas for determining my needs.

I am looking to run two rows of LEDs to supplement T5s on my 90 gallon display tank. I am also setting up a small frag tank I am setting up with staight LEDs or 2 T5 and LEDs. I am hoping to run a string of

Display Tank:
White LEDs
Royal Blue LEDs
Blue LEDs
Exotic Leds

Frag Tank will be simpler:
2-3 strings of LEDs

I am still determining which LEDs I am going to use. Can someone help me out with the math? Based on Cree XM-L and XP-G LEDs just for example, how do I determine which drivers and power supply I will need? Is there any problem if I buy a large power supply with excess capacity?
 
Photobug said:
I am hoping to use the LDD drivers to control my lighting needs. I am still fuzzy on the math. Can someone help me out with the formulas for determining my needs.

I am looking to run two rows of LEDs to supplement T5s on my 90 gallon display tank. I am also setting up a small frag tank I am setting up with staight LEDs or 2 T5 and LEDs. I am hoping to run a string of

Display Tank:
White LEDs
Royal Blue LEDs
Blue LEDs
Exotic Leds

Frag Tank will be simpler:
2-3 strings of LEDs

I am still determining which LEDs I am going to use. Can someone help me out with the math? Based on Cree XM-L and XP-G LEDs just for example, how do I determine which drivers and power supply I will need? Is there any problem if I buy a large power supply with excess capacity?
Click to expand...

It all depends on how many leds you need, and how many channels you want to run.

The most cost efficient use of these drivers, is to run a string of ~12 leds per driver. That would equal out to ~48 volts. You would then buy a 48v switching power supply with however many amps you need.

Cree XT-E leds would best be used with LDD-1000H
"Exotics" and Violets would best be used with LDD-600H or 700H.
Cree XM-L would be a waste for 1000mah.
You want excess capacity.
 
Giga said:
Wow this is a Great thread most likly gonna go this route when I get the the LEDs in my new tank
Click to expand...

Yep. It already puts my Mean Well ELN-60-48-D build to shame, and costs less. That build was pretty nice too.

Very helpful thread, and it will enable a lot of people to have some clean, beautiful looking DIY setups.
 
Just a quick update for everyone that ordered boards and shipped them USPS. I received my boards that rrasco put up for everyone today in the mail! Hope everyone has a great holiday.


I have extra boards if anyone wants them.
 
one clownfish said:
I was careful soldering the terminal blocks and LDD pins to the PCB. I made sure only one pin was soldered and not touching the pin next to it. I was looking at the front of the LDD and now I'm not sure if the pins that are connected with a line need to be soldered together? Any help would be appreciated.
Click to expand...

Bump, I assume they can be soldered together, since they are connected(by checking with an Ohm meter) but can you/should you solder them together?
 
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