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

[dre7606]

Thank you sir! Just had to look at this diagram a little bit closer. I was thinking that channel 1-4 were connected to VDC In on the far left, but after taking a 2nd look i see it is connected to the VDC In on the right. Outstanding!

 

[sfsuphysics]

I'll add my question to this thread since I didn't get much of a response in the one I created.

But is there anyone using an ardino based controller to control LDD drivers that are run off multiple power sources? If so how are they wired up?

 

[emerald crab]

It does not matter how many power sources you decide to use (but no more than one/LDD). You connect all the ground wires together ( that means "-"), signal (from your PWM source, whatever it happens to be) to PWM pin of each LDD and execution (big muscle power)to the "+" pin. Based on the size of your power source, decide how many LDDs you supply with that power source (that means the"+" pins that get power from that power source. For continuous duty I would not load the source more than 75%)

 

[mkj]

if one of the two -v pins on an LDD brakes off will the LDD still work using only one -v pin?

 

[O2Surplus]

if one of the two -v pins on an LDD brakes off will the LDD still work using only one -v pin?

Yes- It should still function normally.

 

[mkj]

thanks 02surplus

 

[perkint]

You're right- I never posted the build files for the 8up/dual SCW board and a couple of others. As soon as I have some free time, I'll go though my collection of designs, tweak them a bit so they're pefect, and then post all of the build files to this thread. LOL This thread is so long now- that even I don't remember what designs I've put up, let alone where in this thread to find them. :headwally:

Hi O2Surplus,

Did you ever get chance to look at this? A bloke I know is looking at DIYing himself some LEDs with 7 channels, so I was going to suggest one of your 8up boards, but if you have the gerber files for the ones with dual SCW, they are obviously a bit more useful

Assuming you wish to add to your previous significant generousity in posting your designs!

Tim

 

[O2Surplus]

Hi O2Surplus,

Did you ever get chance to look at this? A bloke I know is looking at DIYing himself some LEDs with 7 channels, so I was going to suggest one of your 8up boards, but if you have the gerber files for the ones with dual SCW, they are obviously a bit more useful

Assuming you wish to add to your previous significant generousity in posting your designs!

Tim

Nice way to twist my arm Tim!

I've attached the Board and Schematic files. I would have included the gerber files too, but the .zip file is too large to post on this forum. If you have trouble generating the gerber files, just send me a PM with your Email address and I'll send them to you.

 

[perkint]

I thought it was a polite way of trying to get what I wanted :beer:

As usual Aaron, thanks very much

And I did mean the bit about thinking you are very generous to share all your designs!

Tim

 

[bpaston]

So can multiple ldd boards be powered up by a single large psu? Given. I stay within the current I need. Trying to avoid running a single psu for each ldd board as I will have 5 total.

 

[jedimasterben]

Of course, just run more wires to the power supply leads.

 

[Yodeling]

Or just connect PSU to one board, then use the extra V+/G terminals to interconnect all of the LDD board.

 

[007Bond]

Keep in mind,...on a single, if it goes out,.. your without all lighting,...unless of course you have a backup sitting on your shelf.

 

[Krazie4Acans]

Yes you can but a high wattage single supply may get very expensive. Like others have said it becomes a single point of failure of it goes out. Chances are you will run that single supply closer to its max than if you had separate supplies. Krazie :jester:

 

[perkint]

Or just connect PSU to one board, then use the extra V+/G terminals to interconnect all of the LDD board.

If you're going to do this, ensure the wiring is capable of carrying the current for all the LEDs tho...

Tim

 

[eric30]

Here are the files for the MeanWell LDD-H&L Driver. It's a bit larger than 50mm x 100mm size, So make sure to use the 10cm x 10cm size when ordering.

Or is it that this card can be bought?

 

[nightOwl]

I am finally getting back around to my LED project and was looking at Meanwell HLG-100-48 vs CLG-100-48. Is the HLG worth an extra $10-$12 for 4% extra efficiency? My scenario will only require 38v with the added suggested overhead and only 81.6w with the 20% suggested overhead according to my calculations. So both of these should work. If there are any other reliable drivers that may work please let me know.

 

[jedimasterben]

If you have not already purchased the CLG, then I would use the HLG. Also FYI the HLG doesn't really need that 'spare area' as they are made to run at full loads.

 

[nightOwl]

If you have not already purchased the CLG, then I would use the HLG. Also FYI the HLG doesn't really need that 'spare area' as they are made to run at full loads.

jedimasterben - If that is the case I should be alright with the HLG-100-42 as well correct?

 

[jedimasterben]

I would personally go ahead and get the -48 or -54 and let the LDD do the rest. This way you are never limited in how many LEDs you can run if you ever want to add more to your strings.