Re: Switched Mode Power Supplies
I'd also recommend using only power mosfet(s) and a control ic that can drive it. Simplicity comes with the impost of a good pcb feedback of smt current sense, and good gate drive current spike control, and good output or other indirect feedback into the control ic - each loop requiring care with pcb layout so as not to corrupt each other.
Its also pretty arduous to find a recycled magnetic part, identify it, re-engineer it and use it just once. Many would, as recommended near the start, define up front a goal and design around a commercially available core set and former with appropriate pinouts. The goal spec may change a bit due to practical operating levels and winding constraints.
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