Powering Video Game Consoles with Single Power Supply? Answered
I'm in the planning stages for a office/video game room. I own a lot of game consoles — around 20. I want to hook them up to two televisions — one HD plasma and one SD CRT (older ones will probably go to the CRT). I'm starting from an unfinished basement, so I have a lot of freedom for the design.
One thing I really want to avoid is a rat's nest of cables — 20 consoles can result in a big mess. I'd also like to avoid having wall warts draw power when I'm not using their respective console. With that in mind, plus a desire to introduce a little automation, I'm planning to use an arduino (probably a mega 2560) along with a bunch of relays and a power supply of some sort to do this. For consoles with internal power supplies, I'll run AC through some relays. But for the DC ones, is there anything I should be worried about? I plan to use voltage regulators (possibly variable along with some digital pots) to set the correct voltage for each console. Should I put fuses in line? Diodes?
I should mention that I don't plan to ever have more than one console on at a time. That said, I do plan to use a desktop PSU or something like similar that can provide plenty of amps.
I don't yet know as much as I'd like to know about DC and what constitutes a good source of power, and I just want to make sure I don't fry any of my consoles through some rookie mistake.
I'd appreciate any advice, suggestions, etc.