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Keywords:

  • dc–dc converters;
  • average models;
  • SPICE

Abstract

This paper deals with the problem of the analysis of boost and buck converters at the steady state with the use of the method of average models. The usefulness of this method is examined by comparing the boost and buck converters characteristics at the steady-state obtained both with the transient analysis with physical models of semiconductor devices and the examined method as well. The accuracy of the method of the average models is investigated with respect to the values of the circuit load resistance, the pulse-duty factor and the frequency of the signal controlling the power switch. Copyright © 2009 John Wiley & Sons, Ltd.