The Simulation Study of Small-Signal BJT and FET Amplifiers through Pspice

Abstract: Small signal Common Source FET RC coupled amplifier and Common Emitter BJT amplifier are considered as basic building block for the electronic circuits. In this paper these two important amplifier circuits compared in various parameters like frequency response, bandwidth etc. We have also compared these two amplifier circuits on various parameter e.g. maximum voltage gain, current gain, power dissipation, operating voltage and input-output impedance etc. In this communication simulation study of bandwidth variation with respect to load resistance and bandwidth variation with respect to Vcc has been carried out.

Keywords: Small Signal Amplifiers, Basic Electronics Circuits, BJT Amplifier, FET Amplifier