A Novel Static Model in d-q Coordinates for a Common-Emitter Amplifier

Abstract

This work presents a comprehensive investigation into a novel static model, formulated in d-q coordinates, for a common-emitter amplifier operating in a common-emitter configuration. The research starts with an in-depth study of the standard dc and ac models of the common-emitter amplifier, elucidating essential equations that capture its linear behavior. Moreover, the focus shifts towards a small-signal model, specially adapted to the ac operation of the common-emitter amplifier. Park's transformation is utilized to derive a static model in d-q coordinates, offering a thorough representation of the amplifier's behavior under steady-state conditions. Simulation techniques are employed to rigorously evaluate and compare the proposed d-q coordinate model with the standard model. The study demonstrates the static and fast response capabilities of the derived d-q coordinate model after system start-up, thus proving its viability and effectiveness. This research presents valuable contributions to the field of common-emitter amplifier modeling and analysis, offering insights that can advance the design and comprehension of amplification systems.