I'm doing a large photostudio automated lighting setup and I'll need a lot of light so it will be 1000W of LED strips and I need them to be controlled by Arduino. The strips are gonna be on about 20% of power most of the time and then for a photo capture (about 2sec) they gonna light up to 80-100%. I have some electrical skills and I've done this before in smaller scales but I'm worried about controlling 1000W with PWM. So please can anyone confirm if following setup will work?
- Power supply: 1000W 24V Mean Well (RSP-1000-24)
- Arduino Uno with 6 PWM outputs
- MOSFET modules from Ebay:
I need to drive 5 channels. 4 of them with 3Amps each and one channel with up to 30Amps. This channel can be split into multiple channels driven by single Arduino pin. So I would use that 4 channel module for those 3A channels and then use two of those 3D printer powerful MOSFETs to drive that 30A channel split to two 15A channels.
Question 1: Will it work? :)
Question 2: Will the power supply be OK with driving the whole load with PWM? Are the PWM outputs from Arduino synchronized? Because if they are the power supply will be switching between 40A and 0A constantly. If I could
offset phase-shift the PWM outputs the load for the power supply would be more spread. This is what I mean:
Question 3: The MOSFETs - will that 3D printer MOSFET switch at 5V from Arduino? Do I need some extra cooling? I think I should be OK, because the PWM load should be at 20% most of the time and then just about 2sec of full load. Right? Oh and is it a good idea to put multiple MOSFETs in
series paralel to spread the load - will it spread evenly? I guess better option is to split them into multiple channels right?