Noggin
Member
I'm working on making a desktop drink cooler. I've purchased a 12v, 100 watt peltier device from Amazon as it was cheap. I'm running 1.5 amps at 3.3v (pure DC current, no PWM). I have the peltier sitting on a 100mm x 40mm x 20mm heat sink with a small fan. I have more fans I'm planning on using with the system, so I should get a fair amount of improvement beyond what I have right now. I have also not done any optimization yet, I may get a better temperature running at either a slightly higher or lower current. I think that really depends on my heat sink and how quickly I can remove the heat from it.
I knew I wouldn't be pushing 100 watts of power through the peltier, but I didn't expect to only be running at 1.5 amps at 3.3v. So here's my question... Would I be better off using something more like a 20 watt peltier?
I knew I wouldn't be pushing 100 watts of power through the peltier, but I didn't expect to only be running at 1.5 amps at 3.3v. So here's my question... Would I be better off using something more like a 20 watt peltier?