Power supply for Baldrick 17

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dannyp

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The Baldrick 17 has 4 X 30 amps plus 1 10 amp input. I am using 12 volt seeds 540 seeds per output at 30% brightness. I’m just wondering how best to power it up. The power supply will be under cover externally. Some questions/thoughts

Should I get a a big power supply or multiple small ones? I’m thinking a big one will make it easier, but interested in views.
What size should I get to ensure I don’t under power it?
Any recommendations to power supply?
would I be better with an external power supply?
I see that there are power supplies and then LED drivers. What’s the difference?
 
A server power supply is the go for 12V boards with lots of outputs imho. There's 750, 800, 1000 and 1200W varieties and they are compact and highly efficient.
The "LED drivers" are potentially Chinglish translations. A true led driver is a constant current source and a power supply (mostly) is a voltage source. The ratings for the 2 different types of supply will generally be different. A power supply will be something like 12V 33.3A 400W. A led driver will typically to suit 40W,100W etc downlight style led lighting and will more often than not have dimmable or not dimmable as part of the label.
 
Not really having any experience other than my existing meanwells, do you have any recommendations on the type I should be searching for? I did a search and I’m not really sure what I’m looking for, or the size of the unit for the bald Rick?
 
Search for server power supply or common slot server power supply.
To run the Baldrick at anything like full capacity I'd look for 1000 or 1200W varieties.
www.ebay.com.au

656364-B21 - HP 1200W AC Common Slot Platinum Plus Hot Swap PSU 660185-001 | eBay Australia

This applies to everything we list, either new, used, open box or refurbished. This process, if approved by the manufacturer, can take between 4-6 weeks to complete. Refurbished, used or open box products are ineligible to have warranties reset.
www.ebay.com.au
 
Hi Allan, just ordered 2 of these, but just thinking - do I need any special connectors to connect the PSU to the Baldrick? Normal PSUs have the terminal connectors, but I'm not sure these have them.
 
dannyp said:
The Baldrick 17 has 4 X 30 amps plus 1 10 amp input. I am using 12 volt seeds 540 seeds per output at 30% brightness. I’m just wondering how best to power it up. The power supply will be under cover externally. Some questions/thoughts

Should I get a a big power supply or multiple small ones? I’m thinking a big one will make it easier, but interested in views.
What size should I get to ensure I don’t under power it?
Any recommendations to power supply?
would I be better with an external power supply?
I see that there are power supplies and then LED drivers. What’s the difference?
Click to expand...
I have one baldrick 17 with two Lrs-350-12. The board isn’t pishing huge numbers of LEDs though.
My Mega tree build will have a baldrick 17 with 3 LRS-350-12 and a LRS-150 for the topper
 
AAH said:
Something like https://www.hansonelectronics.com.au/product/psdist3/ is needed.
Click to expand...
HI Alan, sorry for all the questions, but looking at your site I'm getting a bit confused between the various models. Am I right in saying that the only difference between the PSDIST 2 and PSDIST3 is that PSDIST2 can power 8 different boards whilst the PSDIST3 can power 5? Also one accepts spade connectors but the other doesn't and the DIST2 is fused..

Now the next question is that I have bought the HP 1200 watt common rail server power supply which can supply a max 75Amps, so either of these distro boards should handle the max power in total, but the PSDIST3 output terminals can do 30A each, which is the same as the baldrick power input. So my question is am I better using the DIST3 even though it doesn't have fuses?
 
dannyp said:
HI Alan, sorry for all the questions, but looking at your site I'm getting a bit confused between the various models. Am I right in saying that the only difference between the PSDIST 2 and PSDIST3 is that PSDIST2 can power 8 different boards whilst the PSDIST3 can power 5? Also one accepts spade connectors but the other doesn't and the DIST2 is fused..

Now the next question is that I have bought the HP 1200 watt common rail server power supply which can supply a max 75Amps, so either of these distro boards should handle the max power in total, but the PSDIST3 output terminals can do 30A each, which is the same as the baldrick power input. So my question is am I better using the DIST3 even though it doesn't have fuses?
Click to expand...
The short answer is that the PSDIST2 is designed for applications that haven't got fusing immediately on the input to them and the PSDIST3 is for fused boards.
The power input connectors on most pixel boards and also the output connectors on most power supplies is rated to a max of 30A.
Double fusing pretty much anything is unnecessary and wasteful of voltage. There is a finite voltage drop across fuses so with low voltage power you don't want to be doubling the voltage drop.
 
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