I'm battling with Addressable LED tape power. I have 12V TM1812 RGB LED tape and want to run the maximum lenght in pixels , which is just over a 1000 pixels. This means the current will be around 40 Amps at 12V. This comes to about 20 meters of strip.
I will ditribute the 12V and GND along the strips by using a bigger cable to reduce voltage drop and heat. But connecting the GND across for the reference of the data signal will give a path for the current to flow through the thin PCB of the strip which I need to avoid.
I'm adding small restistors to reduce noise betweeen the strips for data, but how can I make sure the high current which is driving the LEDs is not passed through the previous strips and goes through the big ( buzz bar ) cable I use to power the strips.
Each strip of 132 pixels draw just over 5 Amps on 12V.