The paper explains the basic ideas of how to model controlled switches are modeled by time-varying resistances. the dynamical properties of switched DC-DC converters by To model such systems, the so-called generalized transfer means of the so-called generalized transfer functions (GTFs). functions (GTFs) [5], [6] can be applied. GTFs are functions Switched DC-DC converters like bust or bust-buck types of two well-known s and z operators, simultaneously exhibit some properties of continuous-and discrete-time describing both the continuous-time and discrete-time characters. These systems can be globally modeled by mixed sbehavior of switched converter. Frequency responses are z description, utilizing both the Laplace and z-transform obtained after double substitution s=jwo and z=exp(wIl), operators. Then the resulting line-to-output and control-tow oupttransfer functions and the corresponding frequency whr T stesicigpro. Th.T-aedmdln output transfer functions and the corresponding frequency offers a more precise description of converter dynamics than responses can model some system behavior more faithfully the presently used approximate procedures, based only on than the classical s-domain zeros/poles location, including the s-or z-domain transfer functions.special effects above Nyquist's frequency.
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