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Eletrônica de Potência
Article . 2000 . Peer-reviewed
License: CC BY
Data sources: Crossref
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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Eletrônica de Potência
Article . 2000
Data sources: DOAJ
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Um Circuito De Auxílio À Comutação Quasi-Zvs Aplicado A Conversores Forward Com Dois Interruptores

Authors: José Renes Pinheiro; José Eduardo Baggio; Luciano Schuch;

Um Circuito De Auxílio À Comutação Quasi-Zvs Aplicado A Conversores Forward Com Dois Interruptores

Abstract

Este artigo apresenta um circuito de auxílio à comutação (CAC) aplicado a conversores forward com dois interruptores, operando com comutação do tipo quasi-ZVS, (Quasi Zero Voltage Switching) nos interruptores principais. O CAC utilizado é composto por um indutor ressonante de pequeno volume, um diodo e um interruptor que comuta sob corrente nula. Não é necessário o uso de um terceiro enrolamentono transformador riem fontes de tensão auxiliares para realizar a comutação. A implementação é possível através do uso de um comando apropriado, diferente daquele convencionalmente utilizado em conversores forward com dois interruptores. É apresentada uma completa análise das etapas de operação bem como os procedimentos de projeto para acorreta operação do conversor. Resultados experimentais foram obtidos de um protótipo de 250W/48V @ lOOkHz, provando a viabilidade deste CAC aplicado a conversores forward com dois interruptores. Concomitantemente, um novo conceito de comutação é introduzido, onde os interruptores principais comutam de forma quasi-ZVS.

Keywords

Electrical engineering. Electronics. Nuclear engineering, TK1-9971

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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
gold