Design of Class-Φ3 Inverter

This paper presents a design example of the class-Φ
₃
inverter. The design parameters can be theoretically obtained by applying the multi-frequency analysis. The class-Phi
₃
inverter is a special version of the class-E/F3 inverters, whose output reactance is zero. It is possible to obtain the circuit component values, which give zero output reactance of the output filter with consideration of low input inductance. The experimental results and PSpice-simulation results agreed with the analytical predictions quantitatively, which showed the validity of analytical expressions in this paper.