Exact and explicit expressions for the small-signal dynamics and frequency response of switching converters

In this paper, exact and explicit expressions for the dynamics and small-signal responses of piecewise linear switching converters are derived. The results are very useful for the exact simulation and analysis of converter circuits. These expressions can also be used to develop simplified (approximate) models of converters for practical design purposes. An example is given to show that the well-known state-space averaging model is in fact the first-order approximation of our exact model.Department of Electronic and Information Engineerin