Research of the time irreversibility in voltage mode controlled DCM Buck converter

This paper takes a voltage feedback DCM Buck converter as example, and analysis the distance in the converter which apart from equilibrium based on symbolic dynamics and relative entropy. The result shows that the relative entropy can quantify the distance of converter in chaos state, which can provide new ideas and methods for investigating the complexityof the nonlinear dynamics in converters. Keywords-buck converter; nonlinear dynamics; symbolic dynamics;relative entropy