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AusChristmasLighting 101 Manual
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[QUOTE="TerryK, post: 128257, member: 32169"] In general without knowing the pixel drive levels or pixel types I think that will work but I do have a few concerns. I'm a bit unsure from your description of the 'T' wiring but it seems supply #2 V+ is routed downstream and not back towards the controller. That is supply #1 V+ ends at the last pixel of the 4th mini tree. If that's correct, while you indicate 500 pixels on each supply but with NOT connecting the supply #2 V+ between the #4 and #5 mini tree the first 4 mini tress will be powered from the controller. Essentially supply #1 if I counted correctly, will power 700 pixels. Leaving supply #2 powering only 296 pixels. Second, power injection is mostly every 100 pixels but Output #1 has in one of its sections 200 pixels between power injection. Maintaining a good V- reference when the supplies have a fair separation is or can be a bit of a challenge. Here the V- reference is spread along the first 4 mini trees. The first pixel of the first mini tree should see a good V- reference from the controller (supply #1 indirectly) and as the V- reference 'shifts' along the mini tree string towards the supply #2 V-, the data will shift along with it. Towards the #4 and #5 mini tree junction the V- and data will be referencing supply #2. Everything should carry on fairly well from there. Again, if I understood what you posted, to balance the number of pixels on each output I would have the controller Output #2 run ONLY V- and Data. Add a power injection line from supply #2 to the first pixel of the first mini tree. The V- reference between the supplies would then run from supply #1 to the controller to output #2 to mini tree #1 pixel #1 to supply #2. [/QUOTE]
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