Modeling and Design of A 10MHz Class $\Phi_{2}$ Inverter

The Class $\Phi_{2}$ inverter has become a research hotspot for high frequency applications due to low voltage stress and load-independent ZVS operation. However, the previous design procedures based on the Bode diagram of the high order resonant network are inconvenient for parameter tuning during simulation. In this paper, a unit-less model of the Class $\Phi_{2}$ inverter is presented to facilitate the generalized circuit design. And a new parametric design method is proposed, that achieves decoupling design of the switch voltage stress and reduces design iterations by the constraint lines of the capacitor voltage stress and zero voltage switching. It is verified by simulation results that the optimal parameters can be found in the design area, and the experimental prototype is being built.