Power Balancing + Power Injection - Double Check

Gooliez

Apprentice elf
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Dec 31, 2025
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Spreyton, Tasmania
Hi Guys, Me again.

I'm building a matrix with 1440 pixels. Split in 2 ( 720 per port)

I've connected up 1 part to test how the brightness level @30% sits and clearly there is drop off (12v Pixels)

With Zig Zag configuration it loops back to the same side, so was looking at Power balancing, Which all I do is cut the Data on one side of the inputs. But I'm thinking to put less stress on the PSU, i'll power inject at the 400 pixel mark.

If i run the Positive from the second power supply say 25% each direction from the middle, it should give power to a total of 50% of the pixels,
Negative Runs the full lot.

can you check my Awesome graphic skills and see if what i'm thinking of doing is correct?
 

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Config will work.
On another front, what timing are you planning on using with those pixels?
720 pixels per port will limit the speed you can update the pixels. How much will depend on more factors than I can bring up here, but note that it takes x-milliseconds to update each pixel and multiply that times the number of pixels on the port. If you are running what is current day "slow" refresh rates, I see no problem. If you are going for the higher rates, as in smoother transitions, you may witness some artifacts.

Not saying anything is wrong, just there are tradeoffs for packing your ports.
 
Config will work.
On another front, what timing are you planning on using with those pixels?
720 pixels per port will limit the speed you can update the pixels. How much will depend on more factors than I can bring up here, but note that it takes x-milliseconds to update each pixel and multiply that times the number of pixels on the port. If you are running what is current day "slow" refresh rates, I see no problem. If you are going for the higher rates, as in smoother transitions, you may witness some artifacts.

Not saying anything is wrong, just there are tradeoffs for packing your ports.
i'm using 40fps (25ms), As this is my first year setting up i thought that would be the way to go. everyone seems to suggest it.
I Did a test run on 1 port and it seems pretty responsive. not really sure if the more ports active you notice more difference, or how noticeable it will be.
 
What controller?
There are limits on particular pixel counts at 40fps - Falcon for example is 680. FPP based will do 800.
 
What controller?
There are limits on particular pixel counts at 40fps - Falcon for example is 680. FPP based will do 800.
Baldrick 8 ports

"The Baldrick8 is our flagship 8-output pixel controller, designed for professional lighting displays and large-scale installations. With support for up to 2250 channels per port (which is 750 RGB pixels at 40fps) and high refresh rates, it's perfect for creating stunning visual effects."
 
I'm in the more ports camp, generally for larger dense props if they're close to a controller I'll happily just use more controller ports, try and keep each run under 150 pixels and you can happily run 100% brightness and not have to deal with power injection at all .. controllers are cheap these days
 
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