I have a quick question. I've built myself a DSLR cold box. This puppy actually uses two peltiers, one attached to either side of the box, for maximum cooling in the event I need it. I think normally (spring/fall) I'll only need one peltier to be running, but I want to be able to switch the other on for more rapid cooldown and better cooling during the heart of summer. It is actually still a project in progress, as I am also working on an Arduino-powered PWM-driven regulator that will use thermistor input to regulate the power to the peltiers. I'm waiting on a couple mosfet and inductor & capacitor parts to build an LC filter to feed clean consistent power to the peltiers.
The kicker is the power. Both of these peltiers are 12v (7-15.4v range) 5.8 amp. At maximum power, they draw 11.6 amps. I've been looking around, and for the most part it seems most AC to DC converters are 5 amp. I found one that was 10 amp. Is it even possible to find an AC/DC converter capable of supplying 12 amps of power? Once initial cooling is done, the Arduino setup should throttle the power, so during sustained operation I shouldn't need that much...but I don't want to have to wait an hour or so for the temperature to settle at it's minimum level so I can get started on imaging. It would be great if I could find a single adapter capable of supplying the power I need, so I don't have to use two adapters just to power the cold box.