A New Single Active Switch Quadratic Buck Converter

Septimiu Lica; Dragos Florin Iancu; Mircea Tomoroga; Mircea Gurbina; Dan Lascu

doi:10.15866/ireaco.v8i5.7203

A New Single Active Switch Quadratic Buck Converter

Septimiu Lica^(1*), Dragos Florin Iancu⁽²⁾, Mircea Tomoroga⁽³⁾, Mircea Gurbina⁽⁴⁾, Dan Lascu⁽⁵⁾

^(*) Corresponding author

Authors' affiliations

DOI: https://doi.org/10.15866/ireaco.v8i5.7203

Abstract

A new dc-dc converter consisting of one active switch (transistor), three diodes, two inductors and two capacitors is proposed. The new converter is theoretically analyzed in continuous conduction mode (CCM) operation, in which the converters are used in most applications. Then, the feasibility is studied using a simulation tool and a practical prototype. All these prove that the convertor operates as expected and that it has a second-order (quadratic) dc conversion ratio. Its applicability is related to conversion where a small step-down voltage is needed. Also current mode control can be easily implemented in this topology, when output current is of interest.
Copyright © 2015 Praise Worthy Prize - All rights reserved.

Keywords

Buck Converters; DC‐DC Power Converters; Energy Management; Nonlinear Circuits; Pulse Width Modulation Converters; Quadratic Converters; Switching Converters

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References

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