Analytical Modeling and Design of 27.12 MHz Single-Switch DC-DC Converter with PCB Transformer

This paper proposes analytical modeling and design of a 27.12 MHz single-switch dc-dc converter with galvanic isolation using PCB transformer. The ODE-based approach provides more accurate circuit by considering the high-order harmonics non-ideal components such as diode capacitances. proposed dimensionless mathematical model simplifies desired requires less tuning procedure. In addition, effective offers curves to obtain optimized parameters at any duty ratio. Meanwhile, multilayer planar transformer is designed achieve high power density for high-frequency converter. Based on Neumann’s formula, calculate inductances spiral structure accurately in conditions. As result, computational burden calculating coil alleviated method. simulation experimental results 3W prototype verify effectiveness feasibility