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

Good to know.

I am in no way shape or form an electrical expert, so all the input on that aspect as possible is great. In fact, microelectronics are all still relatively new to me. A year ago I couldn't even tell you what a microcontroller was. I just pick up concepts quickly and know how to use software.
 
That's how I am...

my official title is field service engineer, but I specialize in power generation and switch gear... just have a knack for learning new stuff constantly. I was originally going to run a full PLC system for my tank with schneider modicon gear and an advantech 15" touch screen to control it and my house... but then figured a web enabled arduino would be fun to learn and eventually help out alot more.

I did have some more time to play with eagle though... fun little program
 
bhazard451 said:
Any idea what terminals and such we would need to make a complete board? Once thats all set, I'm pulling the trigger.
Click to expand...

I guess I should put a BOM on that site too.

The 8 pos terminals I used are Phoenix Contact 1751303. I used these because they were in the library, but I suppose they are not the cheapest option.

http://www.mouser.com/ProductDetail...=/ha2pyFadui0Htmg1DxoRebc9/DfWzsmfxHtl2COq1w=

Come to think of it, I only used what was in the library because I didn't want to make a part for a 2 and 4 pos for my original layout. Now that the current layouts only use 8 pos, I do have a custom part for these terminals which are a little cheaper. Most terminals should work, just gotta make sure the footprint is the same.

http://www.mouser.com/Search/ProductDetail.aspx?R=1984675virtualkey65100000virtualkey651-1984675
 
meanwell driver

meanwell driver

I have 4 Mean Well LPC-60-1050 constant current driver that are 48v 1050mA
and NON-dimmable.

Can I use these to run one dd1000h after each of the 4 mean well drivers so I can dim each one separately using arduino from the video and each one should be able to run up to 14 3W leds each one is rated at 15oomA max???
 
The number in the part is the current value. An LDD-1000H is good for up to 1000mA.

I don't understand why you would want to use these drivers and your other ones. These would be a direct replacement for your current drivers but with dimming capabilities; if you wanted to use them and they work for your setup.
 
rott said:
I have 4 Mean Well LPC-60-1050 constant current driver that are 48v 1050mA
and NON-dimmable.

Can I use these to run one dd1000h after each of the 4 mean well drivers so I can dim each one separately using arduino from the video and each one should be able to run up to 14 3W leds each one is rated at 15oomA max???
Click to expand...

You can't use the drivers that you're running now to drive the LDD's. You need a conventional power supply. Look for something comparable to a MeanWell NES-350-48.
 
I also just ordered rrasco's 10x5 to try, along with the terminals suggested. I wonder how long the wait time will be?

Anyone want to try O2's as well? We would just need the files.

Thank you very much for the gerber files and suggestions rrasco. This will clean up my build immensely.
 
what will be needed to dim these with an Arduino Mega? from the datasheet it looks like they need a max dimming PWM of upto 6V?

If I got that right.. can I just use the 5V from the Arduino and dim from 0-90% (aka 0-200)?
 
bhazard451 said:
I also just ordered rrasco's 10x5 to try, along with the terminals suggested. I wonder how long the wait time will be?

Anyone want to try O2's as well? We would just need the files.

Thank you very much for the gerber files and suggestions rrasco. This will clean up my build immensely.
Click to expand...

IteadStudio seems to be cranking out PCB's rather quickly nowadays. I just put in an order with them last week and my boards will be delivered tomorrow. Don't use SeeedStudio right now. They're having some problems with their PCB service. I put in an order with them 4 weeks ago and am still waiting for the PCB's to ship.

I've attached the Gerbers for production @ Itead. (from post #177)
 

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You guys rock! Much thanks.

I'd like to see a few builds pop up from these. The difference in using these LDDs vs my first DIY build using ELN drivers is huge. Cheaper, smaller, more efficient, more flexible, cleaner... I can see a lot more professional looking builds happening because of this.
 
bhazard451 said:
You guys rock! Much thanks.

I'd like to see a few builds pop up from these. The difference in using these LDDs vs my first DIY build using ELN drivers is huge. Cheaper, smaller, more efficient, more flexible, cleaner... I can see a lot more professional looking builds happening because of this.
Click to expand...

Really cheap. So cheap, in fact, that I may have to seriously reconsider building my own drivers ever again. I've built plenty of CAT4101 and LM3409 based drivers in the last few years, but they're now more costly to make than an LDD based driver- go figure?
I'm going to design up another LDD pcb that will mount directly underneath my own version of the "Typhon" led controller. This should be fun.
 
Don't I at least get some credit for being the one to hound rrasco to start making the files! lol

Haven't ordered mine yet... actually really tight on funds right now till after xmas. Mine is already up and running, albeit looking like crap but that will get fixed one day lol

I can tell you my tank looks SOOOOOOOO much better with these varied spectrums. I'm still working on my arduino program as I don't want the standard dim on/off but more of slopes to a high noon period with a moon cycle to boot. Unfortunately work is getting in the way of having time to work on that much :(
 
Chalu said:
what will be needed to dim these with an Arduino Mega? from the datasheet it looks like they need a max dimming PWM of upto 6V?

If I got that right.. can I just use the 5V from the Arduino and dim from 0-90% (aka 0-200)?
Click to expand...

i just dim straight from the pwm outs on the mega, I never run full current anyways so not too pressed if it's not 100% output (haven't tested though... I may do that later tonight)
 
dwolson2 said:
I thought the range of PWM was between X and 6v. I think that the hz determines the percentage.
Click to expand...

you make a valid point... I'll confirm it a bit later

PWM cares about duty cycle... i.e. the time the signal is at full strength, not it's actual strength. these are not analog dimming drivers
 
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