I'm trying to design an AC/DC converter to implement into a project I'm working on. The project needs to be isolated from mains and shouldn't require more than 1A at 5V. My question for you is what is my cheapest option for converting 120AC mains to 5V without blowing anything up? Keep in mind this needs to be implemented on a PCB so simply buying an AC/DC converter won't work for me.
I'm looking for recommendations on different circuit types and especially component recommendations.
(NOTE: I do know the dangers of mains AC. I have a pretty good knowledge of circuit design but I'm a little lacking in the area of power conversion techniques.)