So, for learning purposes, I'm trying to design and build a SMPS. I have a basic schematic drawn up but I'm concerned about my switching control circuit. Once I get passed the MOSFET and start feeding the transformer and feedback circuit, I'm not sure if what I'm doing is right. I know its very crude, but can you please let me know if I'm doing anything wrong before I try to wire this up? Also, with the FBR at the end, I'm not sure if I can just use a single diode or something. I'm kind of confused after that part. Any more info I can get would be appreciated.
Oh, and just so you guys understand my thought process here, I've included 2 additional images I've been trying to model. One of them is simply a voltage regulator that includes the feedback circuit. I also have a basic block diagram that I'm modeling my power supply off. I just tried combining the 2 but I feel I'm missing something.