Delay PSU's

[Matt Smith]

Hi there,
Got a quirky idea I'm hoping will work. From my calculations so far it seems if I use 1.5mm cable with an 8A load i can only go about 10 metres before I lose too much voltage. (Feeding back in forward 4 Amps)

What I'm hoping to do is run a "delay" psu which essentially has
A long 10-30m 2 core cable with ground and signal from advatek to the strip (WS2812B so no clock line)
And then a psu on a seperate power point and run an extension cord to it to power inject that led strip

Is this possible? I can draw a diagram if it's not clear.

 

[fasteddy]

You can just run the ground and the data from the advatek controller and then inject the power at the lights using a different power supply.
You do need to ensure your ground is connected between the ground from the advatek controller and the ground from the power supply for the strip

 

[Matt Smith]

Thanks very much Eddy,

For anyone that reads this in the future. I was able to get clean stable signal from running 20-30 metres of Microphone cable (Twin and Shield) from the advatek 16 mk2 to a "delay" psu and then power injecting. I'm unsure what kind of pressure this puts on the advatek outputs but at least I know it works.

Wiring method (LED Strip End)
12v - Just from "delay" psu on seperate power connection
Gnd - From Advatek (Gnd) AND the "delay" psu (12v-)
Signal From Advatek (Pin3 only tested with WS2812B nothing with clock)

Works a treat!

 

[fasteddy]

It actually great that you can get 20 to 30 metres for the data signal as normally most are pushing to get 10 metres before having to use a Null pixel to boost up the signal again. I think its because you are using a microphone cable that is allowing you to get this extra distance