Small-Signal Models of Some Basic PWM Converters
نویسندگان
چکیده
The paper presents the full-order small-signal models of some basic PWM converters (Cuk, Sepic and Zeta) with discontinuous inductor current mode (DCM). The derivation procedure is based on the small-signal PWM switch model in DCM and converter topologies derived from their original topologies. The small-signal characteristics of these converters are presented in symbolic forms. Such models can be directly used in conjunction with a computational environment as Matlab, MathCAD, and Mathematica to analyze the small-signal low-frequency dynamics of the converters. Key-Words: Full-order small-signal model, PWM switch model in DCM, Fourth-order PWM converters.
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