s-Domain Stability Analysis of Boost DC-DC Converter

Abstract

This brief presents the overall stability analysis of the boost dc-dc converters by obtaining the values of zeros and poles that are operating in a continuous inductor current mode. This paper obtains the transfer function of the boost converter circuit by applying the basic Kirchhoff's current loop and voltage loop equations. The paper implements a boost converter circuit in MATLAB and analyses the characteristics of elements present in both ideal and non-ideal circuit by plotting output waveforms. It applies the concept of root locus plot, Nyquist plot, and bode plot for analyzing the stability of the system and thus provides greater insight into the transfer function of the system along with the location of poles.