I have 2 equal power supplies and I try to control LED strips using arduino and n-channel mosfets. I've split the strips between the supplies, strip A + arduino is on one power supply, strip B is on the other.
The problem is, that the other circuit is behaving randomly, and seems to be always open. I'm thinking if it's design problem. As arduino-mosfets for strip B are not on the same circuit (arduino is on different power supply, thus base is +5V on power supply 1 and it opens the circuit on supply 2). Is there a way to fix this without buying one big power supply (I cannot buy them here without waiting too long)?
Power supplies are the same: Meanwell LPV-100 (100W). LED strips use 2x72W, so there should be plenty of power. Mosfets are IRLB8721, from China. But they seem OK.