Search Results - "Gules, Roger"

An Integrated AC-DC Isolated Converter Electrolytic-Free With Intrinsic Active Low-Frequency Ripple Reduction by Burgardt, Ismael, Nascimento, Claudinor Bitencourt, Badin, Alceu Andre, Gules, Roger

“…Capacitance reduction in single-phase rectifiers has been the focus of several works, allowing, in many cases, the replacement of short-lifetime electrolytic…”
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Hybrid and Three-Level Three-Phase Rectifiers Using Interleaved DCM Boost Converters by Granza, Marcelo Henrique, Gules, Roger, Illa Font, Carlos Henrique

“…Two new three-phase high-power-factor rectifiers using an interleaved discontinuous conduction mode (DCM) boost converters in a three-level configuration are…”
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Modified Sepic ZVRT Converter With Serial Magnetic Coupling and Voltage Multiplier Cell by Kravetz, Fabio Inocencio, Gules, Roger

“…This paper presents a high voltage gain dc-dc converter operating with soft switching, high switching frequency, and reduced voltage stress in all…”
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Self-Driven Current-Doubler Synchronous Rectifier and Design Tuning for Maximizing Efficiency in IPT Systems by Scortegagna, Renato Gregolon, Gules, Roger

“…A novel driving circuit for a current-doubler synchronous rectifier (SR) to inductive power transfer (IPT) applications is proposed in this article using only…”
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A Modified SEPIC Converter With High Static Gain for Renewable Applications by Gules, Roger, Meneghette dos Santos, Walter, dos Reis, Flavio Aparecido, Ribeiro Romaneli, Eduardo Felix, Badin, Alceu Andre

“…Two high static gain step-up dc-dc converters based on the modified SEPIC converter are presented in this paper. The proposed topologies present low switch…”
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Soft-Switching High Static Gain Modified SEPIC Converter by Kravetz, Fabio Inocencio, Gules, Roger

“…The modified SEPIC converter is a high performance dc-dc converter with intrinsic high static gain and reduced voltage stress in all semiconductors used in…”
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Transformerless UPS System Based on the Half-Bridge Hybrid Switched-Capacitor Operating as AC-DC and DC-DC Converter by Fernandes, Leonardo Gobel, Badin, Alceu Andre, Cortez, Daniel Flores, Gules, Roger, Romaneli, Eduardo Felix Ribeiro, Assef, Amauri

“…A single-phase transformerless online uninterruptible power supply (UPS) is proposed in this article. This UPS is based on the new half-bridge doubler-boost…”
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Photovoltaic AC Module Based on a Cuk Converter With a Switched-Inductor Structure by de Morais, Julio Cezar dos Santos, de Morais, Juliano Luiz dos Santos, Gules, Roger

“…The development of a photovoltaic ac module composed of a high static gain nonisolated dc-dc converter with current source output characteristic followed by an…”
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A Wide Conversion Ratio Bidirectional Modified SEPIC Converter With Nondissipative Current Snubber by Hirth, Marcos Paulo, Gules, Roger, Illa Font, Carlos Henrique

“…A new wide conversion ratio bidirectional dc-dc converter based on the modified Single-ended primary-inductor converter (SEPIC) converter is presented in this…”
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Voltage Multiplier Cells Applied to Non-Isolated DC-DC Converters by Prudente, M., Pfitscher, L.L., Emmendoerfer, G., Romaneli, E.F., Gules, R.

“…This paper introduces the use of the voltage multiplier technique applied to the classical non-isolated dc-dc converters in order to obtain high step-up static…”
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A Maximum Power Point Tracking System With Parallel Connection for PV Stand-Alone Applications by Gules, R., De Pellegrin Pacheco, J., Hey, H.L., Imhoff, J.

“…This paper presents the analysis, design, and implementation of a parallel connected maximum power point tracking (MPPT) system for stand-alone photovoltaic…”
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Soft-Switching High Static Gain DC-DC Converter Without Auxiliary Switches by Breus Meier, Martin, da Silva, S. Avelino, Badin, Alceu Andre, Ribeiro Romaneli, Eduardo Felix, Gules, Roger

“…The development of a high static gain dc-dc converter with the integration of the voltage multiplier cell and the coupled inductors operating with soft…”
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Reduced-Order Model and Control Approach for the Boost Converter With a Voltage Multiplier Cell by Dupont, F. H., Rech, C., Gules, R., Pinheiro, J. R.

“…The boost converter with a voltage multiplier cell allows the static gain extension by means of the switching capacitor technique, reducing the duty cycle…”
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Double Modulation Applied to a High Power Factor Rectifier with High Frequency Transformer for Ups Application by Daniel B. de Alvarenga, Martin B. Meier, Roger Gules, Alceu A. Badin, Eduardo F. R. Romaneli

“…The bridgeless boost-full-bridge rectifier is used as preregulator for a high frequency isolated UPS and the asymmetric pulse width modulation (APWM)…”
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High-Power-Factor Rectifier Using the Modified SEPIC Converter Operating in Discontinuous Conduction Mode by Bianchin, Carlos Gabriel, Gules, Roger, Badin, Alceu Andre, Ribeiro Romaneli, Eduardo Felix

“…The theoretical and experimental analysis of a modified version of the SEPIC dc-dc converter used as preregulator operating in discontinuous conduction mode…”
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A Modified SEPIC Converter for High-Power-Factor Rectifier and Universal Input Voltage Applications by de Melo, P.F., Gules, R., Romaneli, E.F.R., Annunziato, R.C.

“…A high-power-factor rectifier suitable for universal line base on a modified version of the single-ended primary inductance converter (SEPIC) is presented in…”
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Inversor Monofásico Isolado Conectado À Rede Baseado Na Topologia Boost-Full-Bridge Com Redução Ativa Da Ondulação De Baixa Frequência Da Corrente De Entrada by Julio Cesar Moura Fae, Victor Gati, Roger Gules, Eduardo Ribeiro Felix Romaneli, Alceu André Badin, Amauri Amorin Assef

“…Este trabalho apresenta o desenvolvimento de um inversor monofásico isolado conectado à rede empregando a topologia boost-full-bridge (BFB). Utiliza-se este…”
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A Three-phase Power-factor Correction Scheme Using an Autotransformer and Two Single-phase Buck Rectifiers by Geovane Duarte Pinheiro, Alceu André Badin, Roger Gules, Eduardo Ribeiro Felix Romaneli

“…This paper presents a three-phase unidirectional rectifier with power-factor correction (PFC) using two modified single-phase Buck rectifiers in continuous…”
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Isolated DC-DC converters with high-output voltage for TWTA telecommunication satellite applications by Barbi, I., Gules, R.

“…Two alternatives for the implementation of an isolated DC-DC converter operating with a high output voltage and supplied by an unregulated low input voltage…”
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An Auxiliary Self-Oscillating Preheating System for Self-Oscillating Fluorescent Lamp Electronic Ballasts by Gules, R., Meneghette dos Santos, Walter, Romaneli, E. F. R., Andrea, C. Q., Annunziato, R. C.

“…The fluorescent lamp lifetime is very dependent of the start-up lamp conditions. The lamp filament current and temperature during warm-up and at steady-state…”
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