Bifurcation diagrams - insight into the modes of operation of a boost converter

Abstract

The modes of operation of the boost converter controlled by naturally-sampled constant frequency pulse-width modulation in discontinuous conduction mode of operation are determined. Bifurcation diagrams as a principal tool for the qualitative evaluation of behaviour of non-linear dynamical systems are used. It is shown that the boost converter considered here can be driven into chaos through a process of period doubling by varying some parameters of the boost converter: the input voltage, the capacitance of the output condenser, the inductance of the input inductor, period of external sawtooth ramp voltage (period of operation) and the load resistance.