Modelling the PWM SEPIC Converter in Discontinuous Conduction Mode
نویسنده
چکیده
A full-order dynamic model of the pulse-width modulation (PWM) DC-to-DC SEPIC converter in discontinuous conduction mode (DCM) is presented in this paper. The derivation procedure is based on the smallsignal PWM switch model in DCM used in conjunction with a PWM derived SEPIC topology. The small-signal characteristics of the PWM SEPIC converter in DCM obtained in a similar way as the small-signal properties of a linear amplifier are presented in a symbolic form. Such a model 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 PWM SEPIC converter in DCM. Key-Words: Full-order small-signal model, PWM switch model, PWM SEPIC converter in DCM
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