diy led power supply?

[jjoos99]

I need some advise or recommendation on a power supply for my led lighting. I have 204 3watt leds and am currently using a meanwell 1000-48 power supply. I ran this one for over a year and it failed. I replaced it with the same model (new one off ebay) It has only lasted a month. I would like to know which supply you would recommend or stay with what I have and have it repaired or replaced.
thanks
Jeff

 

[Jonviviano]

Seems strange the meanwells failed. I have had many run for 8+ years. How is your array wired? How many groups of LED's and how many each group? Using multiple smaller drivers for different strings instead of one driver may help lighten the load, And you will not lose all your lighting if one driver fails.

 

[Webmanny]

Are you sure your power supply is not in a very humid area of your stand? These things don't normally quit after 1 month. Also, what wattage are you looking for. e.g. LEDS to be connected in series vs parallel will have very different needs.

In my case, I normally try to stay at 12 or 24 vdc. Mainly because those are easy to find and they are simple to calculate when using different color LEDs.

As far as what I normally use, I normally go with the eBay cheap ones. The trick is what you use to control them. If you can get a constant driver like the MW, great, but they are expensive. Which is why I normally go with the cheap eBay ones.

I would check humidity first and then move to checking the configuration of the LEDs, you may be asking the power supply for more power than it can drive. Therefore, it is always at 100% and it burns.

 

[oreo57]

I need some advise or recommendation on a power supply for my led lighting. I have 204 3watt leds and am currently using a meanwell 1000-48 power supply. I ran this one for over a year and it failed. I replaced it with the same model (new one off ebay) It has only lasted a month. I would like to know which supply you would recommend or stay with what I have and have it repaired or replaced.
thanks
Jeff

This $200 plus one?
https://www.mouser.com/ProductDetail/MEAN-WELL/RSP-1000-48?qs=Xb8IjHhkxj5mmeT6EC3r2w==

Yea something doesn't seem right. Shouldn't fail in a year and "technically" still under warranty..

that alone can't run LED's "well" Needs a "driver" ...

 

[jjoos99]

This $200 plus one?
https://www.mouser.com/ProductDetail/MEAN-WELL/RSP-1000-48?qs=Xb8IjHhkxj5mmeT6EC3r2w==

Yea something doesn't seem right. Shouldn't fail in a year and "technically" still under warranty..

that alone can't run LED's "well" Needs a "driver" ...

Yes that is the power supply that I am using. I am using meanwell ldd drivers with a jardurino controller. All the strings of leds are no more then 12 leds with a total of just alittle more then 200 leds. they are all 3 watt leds so I am assuming the power demand is not more then 600 watts or so. The first power supply was used when I got it, so it is hard to tell how long it had been used. The second one lasted only a month. Maybe it was just a bad unit. I bought it new from a seller on ebay and cant seem to find where to have it fixed under warranty. Called meanwell today and got a voicemail with no return call. Looks as if I will have to purchase another one till I can get this bad one sorted out.
thanks
Jeff

 

[jjoos99]

Also what is the difference between the rsp 1000-48 and the se 1000-48. Not sure if I might be able to get by with the se model.
thanks
Jeff

 

[mcgyvr]

You need to provide a schematic if you want help..
You didn't mention LDDs until your second post..
We can't see through the screen and there is absolutely no need to "assume" anything as one can calculate the exact information given a valid schematic to know what you are working with there..

 

[jjoos99]

I am running the 48v to a power terminal strip with both postive and ground terminals. From there I have 4 ldd driver boards that are powered from the 48v terminal strip. I do have 20 strings but 4 of them only have 6 leds on them. For a total of 204 leds. Im not going to be able to get my power supply repaired under warranty since I bought it from an ebay seller so I am screwed on that aspect so I need to purchase a replacement.
thanks
jeff

 

[mcgyvr]

Good luck.. I can't help you with the information provided so far..

 

[jjoos99]

Not sure what more information you need? About 6 of the ldds are 1000 with most being 600. 20 total drivers with a total of 204 LEDs. All connected parallel off the terminal strip.
Thanks
Jeff

 

[mcgyvr]

One would need a proper schematic or suitable information to full define the setup and to see if there is a clear reason you are having power supply failure issues or if it was just a fluke.. You are leaving information out..
Your post #8 mentions "4 ldd driver boards"... Next post says "6 of the ldds"
We shouldn't have to assume how many ldds are on each driver board,etc...
And stop using words like "about".. Its either 6 of them are 1000mA or its not 6..

 

[Webmanny]

Let me see if I can take a swing at this one. With the 48v power supply, you should be able to run 12 x 3W LEDs in series and with the 20 amps, you can run around 27 - 28 strips of 12 LEDs. However, I would try to keep it under 25 strips.

Now, this assumes that you have all 3W LEDs and that they are not red LEDs, which consume less power and have to be handled differently. I attached schematics of what I think this setup would look like.

Please do this at your own risk. I am not an electrician, I just enjoy building LED lights.

 

[oreo57]

Also what is the difference between the rsp 1000-48 and the se 1000-48. Not sure if I might be able to get by with the se model.
thanks
Jeff

sorry , might have missed this:
rsp is capable of power sharing so you can parallel up to 4
Has a 5V rail
Other bells and whistles not necessarily needed..
Believe you said the one that failed in a year was bought new.. soo no way of knowing if it's "normal" or not.
May be able to get a serial number and date code..

The one from eek bay who knows.. Chinese bootleg for all we know.

to be honest, probably would be better off w/ like 4 (or whatever) smaller units..
all your eggs in one basket sort of thing.

 

[jjoos99]

One would need a proper schematic or suitable information to full define the setup and to see if there is a clear reason you are having power supply failure issues or if it was just a fluke.. You are leaving information out..
Your post #8 mentions "4 ldd driver boards"... Next post says "6 of the ldds"
We shouldn't have to assume how many ldds are on each driver board,etc...
And stop using words like "about".. Its either 6 of them are 1000mA or its not 6..

sorry for the run around, now I know what you are wanting. I have 5 driver boards with 21 total ldd's.
(9) 1000
(8) 700
(2) 600
(1) 400
(1) 350
the lower ldd's are for green and red leds of which there are only 6 of each. I have attached a pic of the drivers and original power supply
thanks
jeff

 

[jjoos99]

From what I am figuring my max amp draw would be 16.5 amps if I were running them at 100% which I am not. Whites and royal blues are set at around 80% with the other colors even lower. I think the power supply that I purchased was a bad unit. As for the original that failed it was after several years of use on my system and not sure how many years with the previous owner. I am thinking I will be fine with the es 1000-48 model as a replacement and will have the rsp 1000-48 repaired.
Jeff