Electronics for power supplies
This is how I learned software but when you get it wrong you can start again without losing the magic smoke!
I have a 250ah, 12V battery bank, multiple DC devices requiring power and, eventually, several power sources for recharging. I also have several MC34063 chips and a few higher amp chips (somewhat optimistically as it turns out).
Firstly, is there a practical course online that is built around this?
Secondly (and probably extremely basic), if a device draws, for example, 3A is it self-limiting or do I need to put something between the source and the device too restrict the power?