Switched-coupled inductor cell for DC–DC converters with very large conversion ratio

Berkovich, Y.; Axelrod, B.

doi:10.1049/iet-pel.2009.0341

Cited by 142 publications

(81 citation statements)

References 11 publications

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“…Em conversores que fazem uso de indutores acoplados, o elevado ganho de tensão pode ser alcançado pelo ajuste da relação de espiras deste componente. Nesse caso, a indutância de dispersão também pode causar picos de tensão sobre interruptores, assim como nos conversores isolados [7], [8], demandando o emprego de circuitos de grampeamento passivos ou ativos para reduzir esse efeito [8], [9].…”

Section: Introductionunclassified

Conversor CC-CC de Alto Ganho Obtido pela Combinação entre Redes de Indutor e de Capacitor Chaveados

Coelho¹,

Salvador²,

Horn³

et al. 2018

Eletrônica de Potência

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Resumo -Este artigo apresenta um conversor CC-CC elevador não isolado, obtido a partir da combinação de uma rede ativa de indutores chaveados com uma rede passiva de capacitores chaveados. O conversor proposto pode alcançar ganhos de tensão elevados (>10) e caracteriza-se por apresentar reduzido número de componentes e baixos esforços de tensão nos interruptores. O artigo apresenta o princípio de operação do conversor em modo de condução contínua e descontínua, suas principais formas de onda, equacionamento considerando parâmetros parasitas e análise comparativa com outros conversores de similar ganho, previamente publicados na literatura. A validação experimental do conversor proposto é alcançada por meio de um protótipo com potência nominal de 200 W, tensão de entrada de 20 V, tensão de saída de 260 V, frequência de comutação de 50 kHz e rendimento nominal de 94,27%. Palavras-Chave -

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Section: Introductionunclassified

Conversor CC-CC de Alto Ganho Obtido pela Combinação entre Redes de Indutor e de Capacitor Chaveados

Coelho¹,

Salvador²,

Horn³

et al. 2018

Eletrônica de Potência

View full text Add to dashboard Cite

show abstract

“…Numerous isolated converter topologies that make use of transformers and coupled inductors have been proposed in the literature [15]- [19]. The switching losses and electromagnetic interference (EMI) problem are caused by high voltage stress due to transformer leakage inductance, overall reducing the converter efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, for isolated topologies size, weight and losses of power transformer are limiting factors. In [15]- [19], Switched capacitor (SC) and Switched Inductor (SI), Voltage Lift Switched Inductor (VLSI), modified VLSI principles are used along with a combination of coupled inductors, voltage multipliers or Switched capacitor multipliers [21]- [25]. Fig.1 (a)-(d) shows the inductor, SI, VLSI and modified VLSI.…”

Section: Introductionmentioning

confidence: 99%

X-Y converter family: A new breed of buck boost converter for high step-up renewable energy applications

Mahajan

Sanjeevikumar

Wheeler³

et al. 2016

2016 IEEE International Conference on Automatica (ICA-ACCA)

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Abstract-A New breed of a buck boost converter, named as the XY converter family is proposed in this article. In the XY family, 16 topologies are presented which are highly suitable for renewable energy applications which require a high ratio of DC-DC converter; such as a photovoltaic multilevel inverter system, high voltage automotive applications and industrial drives. Compared to the traditional boost converter and existing recent converters, the proposed XY converter family has the ability to provide a higher output voltage by using less number of power devices and reactive components. Other distinct features of the XY converter family are i) Single control switch ii) Provide negative output voltage iii) Non-isolated topologies iv) High conversion ratio without making the use of high duty cycle and v) modular structure. XY family is compared with the recent high step-up converters and the detailed description of XY converter family and its topologies are presented. The simulation results are provided and it confirms the feasibility, functionality and validity of the concepts of the proposed XY converter family.

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“…However overvoltage on power switches can be reduced by means of Diode-Capacitor active clamp circuit but this approach makes the converter more complex and expensive. Cascading, voltage-doublers, switched-capacitor and switched-inductor are the main approaches to implement DC-DC converters without transformer [8][9][10][11][12][13]. Some of the main drawbacks of such converters include high number of components, complexity and larger input current ripple which result in increased electromagnetic interference (EMI).…”

Section: Introductionmentioning

confidence: 99%

Interleaved High Step-up DC-DC Converter with Diode-Capacitor Multiplier Cell and Ripple-Free Input Current

Ebrahimi

Viki

2015

Bulletin EEI

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Abstract-In this paper interleaving and switched-capacitor techniques are used to introduce a high step-up DC-DC converter for renewable energy systems application. The proposed converter delivers high voltage gain without utilizing transformer or excessive duty cycle and features ripple-free input current which results in lower conduction losses and decreased electromagnetic interference (EMI). Lower output capacitance is another advantage of proposed converter, leading to smaller size and lower cost. Furthermore lower voltage stress on switches allows the utilization of switches with low resistance. Simulation results verify the performance of suggested converter.

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Switched-coupled inductor cell for DC–DC converters with very large conversion ratio

Cited by 142 publications

References 11 publications

Conversor CC-CC de Alto Ganho Obtido pela Combinação entre Redes de Indutor e de Capacitor Chaveados

Conversor CC-CC de Alto Ganho Obtido pela Combinação entre Redes de Indutor e de Capacitor Chaveados

X-Y converter family: A new breed of buck boost converter for high step-up renewable energy applications

Interleaved High Step-up DC-DC Converter with Diode-Capacitor Multiplier Cell and Ripple-Free Input Current

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