So I am currently trying to make a convertor to take the wall's AC(North american, 110v) and convert it to about a 9v DC.
I had a 50v 4a rectifer laying around, so I am planning to use that. However I have a few quick questions.
1. Its a radioshack 50v 4a full bridge recitifer, as such.. will it step the walls 120v down to 50v, or do I need to do that before hand?
2. I am planning to use a transformer to step it down, just to wrap one with about 30 coils, and the second one with about 5 or so. That should step it down towards near 9v, then I have a regulator IC.
3. After it converts to DC, what do I use for ground? do I just send that to the other side of the AC plug, or do I send it to the ground prong??