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Now showing items 11-20 of 151
Novel zero-current-switching PWM converters
(Institute of Electrical and Electronics Engineers (IEEE), 1997-06-01)
This paper presents a new family of pulsewidth-modulated (PWM) converters, featuring soft commutation of the semiconductors at zero current (ZC) in the transistors and zero voltage (ZV) in the rectifiers, Besides operating ...
High-voltage gain converters using coupled inductor and resonant cells
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2022-09-15)
Neste trabalho um conversor quadrático de alto ganho de tensão é apresentado. Este
conversor está sendo projetado combinando um conversor boost e um conversor flyback
em conexão empilhada, o ganho de tensão pode ser ...
The ZVS-PWM commutation cell applied to the DC-AC converter
(1997-12-01)
This paper presents the analysis of a dc-ac converter using a zero-voltage-switching (ZVS) commutation cell. First, we show the cell applied to the buck converter. The stages of operation are presented along with the main ...
Dc-dc 3ssc-a-based boost converter: Analysis, design, and experimental validation
(2021-10-01)
A detailed analysis and validation of the DC-DC boost converter based on the three-state switching cell (3SSC) type-A are presented in this paper. The study of this topology is justified by the small amount of research ...
Novel zero-current-switching PWM converters
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Proposta, análise e implementação de técnicas de comutação sob tensão nula aplicadas a fontes cc-cc isoladas para telecomunicações
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2003-08-13)
Dc-dc isolated converters with Zero-Voltage-Switching are proposed and studied in this
thesis. Special attention is focused on converters with series switches connections, which
allow the use of switches designed for ...
Optimal ZCS Modulation for BidirectionalHigh-Step-Ratio Modular Multilevel dc-dc Converter
(2021)
Recent developments in dc powered technologies have increased interest in highly efficient dc-dc converters, especially at high voltage and high-step voltage ratios. Modular multilevel converters (MMCs) are an attractive ...
Conversor CC-CA utilizando célula ZVT
(Universidade Tecnológica Federal do ParanáPato BrancoPrograma de Pós-Graduação em Engenharia Elétrica, 2014-04-26)
This paper discusses above the application of soft-switching techniques to static power conver-ters. The technique discussed in particular consists in provide zero voltage switching (ZVS) to controlled switches. Among the ...
Analysis, design and implementation of single-stage high-frequency-isolated DC-AC flyback converters
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2016-09-30)
This thesis proposes the analysis of two single-stage high-frequency isolated converters suited for grid-tied applications. Firstly, a new modulation strategy to the bidirectional flyback converter with differential output ...