Meanwell LDD driver: for those who want to dim to 0 using Arduino
- Thread starter pwreef
- Start date
Go here- http://imall.iteadstudio.com/open-pcb/pcb-prototyping.html
Click on the 10cm x 10cm board option to add it to you "Cart" and follow the instructions. All you really have to do is rename the Gerber file Zip Folder that I posted to include your order # and Email it to them here - pcb@iteadstudio.com
megadeth72
New member
These the right options?
green 2 sided
1mm thick
HASL
green 2 sided
1mm thick
HASL
Yes- but go with the 1.6mm thickness option. It doesn't add to the cost, so you'll get a stronger board that way.
O2, Is your latest board design LDD-H only? I think your idea of a dual LDD-L & LDD-H version was inspired!
Steve
Hey Thanks. I'll finish that one up and post the build files for it too.
Chatouille
New member
If anyone has spare PCB's for the LDD-H's, would be interested in 2 boards.
PM me if available.
PM me if available.
Anyone have power gate call them? Nice people, called me and asked about the business and I told them what I do which is not related to electronics. Said no problem, if you need more items just give them a call. They also sent two awesome books with their products. Very high quality books.
Everything has arrived... just waiting for PCB boards. They emailed me last Thursday... said allow 3-4 business days then shipping time....
Everything has arrived... just waiting for PCB boards. They emailed me last Thursday... said allow 3-4 business days then shipping time....
Yeah- Nice people. They were actually surprised when I agreed to wait until the end of January for my (20) LDD-1000H to ship. the lady I spoke with said "Well you're the nicest customer that I've dealt with all day." She went on to explain that there's been a sudden surge in demand for the LDD's that their purchasers didn't see coming. I wonder how that happened? :rollface:
When I first posted about Powergate last Tuesday, they called and asked if I would need more. I told them expect a increase in sales of the ldd's as I had told everyone of them on a forum. He asked what I was doing with them and told them they are for a aquarium lights that we are all building. Great place to deal with.
:lol2: Who knew lol
bhazard451
New member
Any switchable power supply off ebay at 48v would work well. My favorite is a 350w 48v selling on ebay for around $35 located in the US. Hard to beat that... I had to order direct from Hong Kong for a 400w for $40. I also have fingers crossed it works fine, otherwise there is no way it is getting shipped back to China.
rrasco
Active member
I bought one from Hong Kong that was a meanwell knock off. Been doing great for me. I should probably get a backup, just in case though. Especially since I just posted this.
rrasco
Active member
You have two things: voltage and current. Voltage is the forward voltage of each LED on the string added up. So if you had six 3.5v LEDs in series, that would be 21v. You would need at power supply to accommodate this voltage. With current, each string will pull a set amount of current. Depending on your LEDs and drivers, this can range from 350mA, 700mA, or 1000mA (aka 1A). Multiply your driving current by the number of strings you have. So if you had six of the six LED strings I referenced above running at 700mA, you would need a power supply capable of 4.2A. When efficiency is factored in (meaning a power supply won't ever produce as much power as it says) you want to overshoot the 4.2A, and go for more like 5-6A. If a 4.2A power supply is only 80% efficient, it would only be capable of providing 3.36A; thus not enough. So oversize a little bit for current. Try to match voltage as best you can. HTH
rrasco
Active member
Good buy. About what I ended up paying for my knockoff, then waiting weeks to get it. I'll def buy a meanwell next time. The knockoffs are considerably lighter.
