Parameter tuning method for class $\Phi_{2}$ converters for high-frequency wireless power transfer applications

This paper presents a method to compensate detuning of class
$\Phi_{2}$
push-pull converters due to practical disparities such as component values tolerances, parasitic effects, and manufacturing errors. A simple and effective tuning method is proposed based on only four steps. An example 100 W, 6.78 MHz wireless power transfer system is presented, that reaches 82.3% efficiency after tuning using the proposed method.