I'm having trouble finding a current limiting device that will run sufficient current. I have found many current limiting diodes that will run current in the mA range, but nothing in the 1, 2 or 3 A range. Maybe I just need to run lots of CLD's in parallel?
I am in the beginning stages of trying to put together a battery charger for a 36 V LiFePO4 battery pack.
As I understand it, the charger would need to run at a current-limited 3 A until the battery reaches a specific voltage and then the battery goes on a trickle charge.
I am basically wanting to take 110 VAC off the mains, run that through a bridge rectifier and then use an Atmega168 to drop the voltage down to the desired charging voltage. A current limiting device would be in-line after the microcontroller.
Any help would be great :)