Modulating functions for testing the performance of switch-mode converters

Aim of the paper is to build mathematical models of DC-DC switch converters (Buck, Buck-Boost and Boost typologies) using input-output data. Among the various identification techniques, the choice of modulating function method was due to its low-pass filtering action. In plain words such feature appears a useful property for a suitable identification of average (low-pass) models at different operating points. The models proposed (including the effects of parasitic resistances) have been validated both by extensive simulations and by ex-perimental tests. An important outcome of such identification and modeling procedure is its effectiveness in performing an experimental evaluating of the loss parameters of the convert-ers: their determination is relevant for testing the efficiency of the switch-mode converte