Application of Statistical Analysis to DC-DC Converters

Abstract

This paper aims at showing the benefits of a statistical analysis applied to DC-DC converters. A boost converter under current-mode control operating chaotically was being used as an example. Theoretical results are verified by measurements. Parallels to results other researchers are drawn. New simple expressions for the DC value of the boost's input current and the AC power are proposed. The statistical approach covers the periodic and aperiodic behavior quite naturally. It reveals that almost all AC power is contained in the chaotic part of the input current. Impacts on meeting electromagnetic interference regulations are suggested.