Modeling of a single-switch quadratic buck converter Article

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Overview

abstract

• Ready-to-use nonlinear and linear averaged models for a single-switch quadratic buck converter are given. The nonlinear model is obtained from an averaged equivalent circuit model of the converter using the PWM-switch (pulsewidth modulation) model. The linear model is obtained by applying a small-signal perturbation to the corresponding averaged state-space description. The result shows that this quadratic converter exhibits the transfer characteristics of a fourth-order system. The resulting models are only valid in the continuous conduction mode (CCM). The validity of the proposed models was verified by computer simulation using PSPICE and MATLAB/SIMULINK for a specified converter. Experimental results on a prototype converter are also presented. © 2005 IEEE.

authors

• Carbajal Gutiérrez Enrique Eduardo
• Leyva-Ramos J.
• Morales Saldaña Jorge Alberto

publication date

• 2005-01-01

published in

• IEEE Transactions on Aerospace and Electronic Systems  Journal

Research

keywords

• Circuit theory; Computer simulation; Equivalent circuits; Frequency response; Heat conduction; Laplace transforms; Mathematical models; Matrix algebra; Pulse width modulation; Signal processing; Switches; Transfer functions; Continuous conduction mode (CCM); Equivalent circuit model; Signal control; Single-switch quadratic buck converter; Small-signal model; Electric converters

Additional Document Info

start page

• 1451

end page

• 1457

volume

• 41

issue

• 4