- Joined Oct 3, 2010
I have some peltier units that I would like to deliver variable voltage to, and according to app notes I've read, it is best to feed these straight DC rather than PWM. An Arduino or similar PWM output will be controlling the voltage level to them so I would like to have a power supply which can have its voltage output determined by a PWM input. The power supply needs to deliver at least 6A and input will be 12-14V (automotive). I dont know yet what max output voltage will be required but hopefully not more than the input; but to be safe it may be best to hope for a buck/boost type. This will be an embedded affair, so a bench top style supply won't be suitable. I was hoping to find some module on Amazon or such, an inexpensive little PCB that would do the job, rather than building my own supply. If anyone knows something that would fit the bill please let me know.