Behavioral modeling of class E amplifiers based on modified nodal analysis formulation

The behavioral model of class E amplifiers on the steady-state are given based on the modified nodal analysis (MNA) formulation. The MNA formulation provides circuit equations which are adopted in general purpose circuit simulators such as SPICE. Hence, even though the circuit configuration is changed, the behavioral model can be easily obtained. To produce the behavioral model, the MOSFET including in the class E amplifier is replaced with an ideal switch. Each dynamical system depending on "on" and "off" states of the switch is categorized into the predictor system in control theory. Thus, the behavioral model of the class E amplifiers is obtained based on control theory.