MOSFET Parasitic Capacitance Effects to Class-DE Power Amplifier <Abstract> This paper presents analytical expressions for the class-DE amplifier with nonlinear drain-to-source and gate-to-drain capacitances. Using the analytical expressions, it is seen that drain-to-source capacitance works as linear shunt capacitance when the input signal is a square waveform. The validity of our analysis is confirmed by PSpice simulations and the circuit experiment. |