Title :
Modelling the PWM Zeta converter in discontinuous conduction mode
Author :
Niculescu, E. ; Niculescu, M.C. ; Purcaru, D.M.
Author_Institution :
Dept. of Electron. & Instrum., Univ. of Craiova, Craiova
Abstract :
A full-order dynamic model of the pulse-width modulation (PWM) DC-to-DC Zeta converter in discontinuous conduction mode (DCM) is presented in this paper. The derivation procedure is based on the small-signal PWM switch model in DCM used in conjunction with a PWM derived Zeta topology. The small-signal characteristics of the PWM Zeta 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 Zeta converter in DCM.
Keywords :
DC-DC power convertors; PWM power convertors; amplifiers; switching convertors; MathCAD; Mathematica; Matlab; PWM Zeta converter; discontinuous conduction mode; full-order dynamic model; linear amplifier; pulse-width modulation DC-to-DC converter; small-signal PWM switch model; small-signal characteristics; DC-DC power converters; Mathematical model; Power factor correction; Pulse amplifiers; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Topology; Transfer functions; Discontinuous conduction mode (DCM); Zeta converter; pulse-width modulation (PWM) switch model;
Conference_Titel :
Electrotechnical Conference, 2008. MELECON 2008. The 14th IEEE Mediterranean
Conference_Location :
Ajaccio
Print_ISBN :
978-1-4244-1632-5
Electronic_ISBN :
978-1-4244-1633-2
DOI :
10.1109/MELCON.2008.4618509
