- SMPS Topologies: Flyback, forward, half-bridge, full-bridge, LLC resonant converters - AC-DC Converters: Design experience with 90%+ efficiency targets (100W-500W range) - Power Factor Correction: CCM, DCM, and CrCM PFC topologies; active & passive techniques - Magnetics Design: Transformer/inductor design, core selection, winding techniques - Control Systems: Loop design, compensation networks, stability analysis - PCB Layout: Power electronics best practices, EMI/EMC mitigation - Tools: Altium/KiCAD, LTspice/PSIM, oscilloscopes, power analyzers