Comparative Analysis Among Different Types of Power Amplifier for Active Magnetic Bearing System

In this paper, one of the major components of an active magnetic bearing system i.e., power amplifier is simulated and its output is studied. Three different type of power amplifier is designed and their time domain-based output response is observed. Power amplifier is an dc-dc type converter. Hence a dc voltage is given as input to the different models of power amplifier and the corresponding waveforms are analyzed. Further a Pulse width modulation (PWM) based asymmetrical type power amplifier is designed in PSIM and its advantage over other power amplifiers has been discussed.