A quasi-resonant quadratic boost converter using a single resonant network |
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| Authors: | Barreto L.H.S.C. Coelho E.A.A. Farias V.J. de Oliveira J.C. de Freitas L.C. Joao Batista Vieira Jr. |
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| Affiliation: | Dept. de Engenharia Eletrica, Univ. Fed. do Ceara, Fortaleza, Brazil; |
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| Abstract: | This paper presents a quadratic boost converter using a single quasi-resonant network to reach soft commutation. A resonant inductor, a resonant capacitor, and an auxiliary switch form the resonant network and the main switch operates in a zero-current-switching way. A complete analysis of this converter is presented. According to the simulation and experimental results, this quadratic boost converter provides a larger conversion ratio than that provided by the conventional boost converter (for a given duty ratio D), and presents optimum performance, which operates with soft-switch commutation using a single resonant network. |
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