1. The problem statement, all variables and given/known data I have to make a Buck-Boost converter for my Design PE class but the problem is even though i have read about them i seriously don't know where to start. I have to make calculations and choose a mosfet, load, capacitor and an inductor but i don't know how. 2. Relevant equations 3. The attempt at a solution I'm looking for a tutorial or a step-by-step guide on building a BBC. It's pretty basic actually not extremely complicated but i just need a nudge to the correct direction.