2012
DOI: 10.18618/rep.2012.2.513520
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Bridgeless Boost Pfc Converter Using The Three-state Switching Cell

Abstract: This paper introduces a bridgeless boost converter based on the three-state switching cell for PFC (power factor correction) applications, whose distinct advantages are reduced conduction losses with the use of magnetic elements with minimized size, weight, and volume. The approach also employs the principle of interleaved converters, as it can be extended to a generic number of legs per winding of the autotransformers and high power levels. The theoretical analysis of the proposed converter is developed, whil… Show more

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Cited by 5 publications
(5 citation statements)
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“…A PFC rectifier prototype was designed and built in order to evaluate the performance of commercially available GaN devices. The chosen topology is a single-phase two-channel (N = 2) interleaved boost converter [20]- [25]. As known from literature [20], the converter channels should be preferably operated with a phase-shift Δϕ = 180 o (in general Δϕ = 360 o /N ) phase shift.…”
Section: Power Converter Designmentioning
confidence: 99%
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“…A PFC rectifier prototype was designed and built in order to evaluate the performance of commercially available GaN devices. The chosen topology is a single-phase two-channel (N = 2) interleaved boost converter [20]- [25]. As known from literature [20], the converter channels should be preferably operated with a phase-shift Δϕ = 180 o (in general Δϕ = 360 o /N ) phase shift.…”
Section: Power Converter Designmentioning
confidence: 99%
“…where the switching losses are mainly due to the parallel capacitance of the devices, i.e., K 0 is dominant in (25). Finally, the computed efficiency considering only the power semiconductors losses is…”
Section: Power Converter Designmentioning
confidence: 99%
“…Uma ampla revisão sobre retificadores boost é apresentada em [8], [9]. Os conversores mais atrativos para operar com baixas tensões e elevadas correntes utilizam células de comutação de múltiplos estados, que operam de maneira intercalada, permitindo uma boa distribuição da corrente, tais como os conversores apresentados em [10]- [13]. A grande maioria desses conversores utilizam diodos e são unidirecionais.…”
Section: Introductionunclassified
“…Os conversores propostos em [10], [11], com algumas modificações poderiam tornar-se topologias bidirecionais, em ponte completa e intercaladas. Contudo, outro requisito importante é que a topologia apresente um filtro de entrada reduzido, permitindo obter dinâmicas rápidas sem demandar frequências de comutação proibitivas.…”
Section: Introductionunclassified
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