Analysis and Design of LLC Resonant High-Voltage Converters with Magnetic Integration

In the lab, a high-frequency high-voltage transformer's impedance and frequency characteristics are measured using an impedance analyzer. the parasitic parameters are extracted to design the LLC resonant converter's resonant frequency, operating frequency range, and select suitable components to meet the design requirements. The impact of parasitic parameters on the LLC resonant converter is analyzed, and optimization methods are proposed. The calculated results meet the design requirements and are verified through simulation and experimentation. The designed magnetic integration LLC resonant high-voltage converter's output voltage is stable at around 2kV, and the simulation results match the experimental results, verifying the feasibility of this method.