Multiple alternatives of regenerative snubber applied to Sepic and Cuk converters

Bonfa, V.A.; Menegáz, Paulo José Mello; Vieira, J.L.F.; Simonetti, Domingos Sávio Lyrio

doi:10.1109/iecon.2002.1187493

Cited by 13 publications

(7 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Uma forma de reduzir as perdas e melhorar o rendimento é a adoção de técnicas não dissipavas, como circuitos ressonantes [15], que poderão ser realizados em trabalhos futuros.…”

Section: Tabela IV Resultados Do Ensaio Do Conversor a Plena Cargaunclassified

Conversor Trifásico Multipulso Com Regulação Da Tensão De Saída Através De Estágios CC/CC Sepic

Lourenco¹,

Seixas²,

Oliveira³

et al. 2017

Eletrônica de Potência

View full text Add to dashboard Cite

Resumo -O presente trabalho apresenta o estudo e desenvolvimento de um conversor CA-CC trifásico formado por um retificador de 18 pulsos não isolado, de baixo peso e volume, e três conversores SEPIC que atuam como elementos intermediários, ou seja, um estágio CC-CC para a conexão com a carga, possibilitando tensão de saída regulada e, opcionalmente isolamento galvânico em alta frequência. O conversor proposto pode ser utilizado em substituição a estágios retificadores convencionais, de baixa qualidade de energia, como os utilizados em acionadores de velocidade variável (inversores), fontes CC entre outras. Os resultados experimentais obtidos mostram que o conversor apresenta reduzido conteúdo harmônico, com distorção harmônica total da corrente de entrada menor do que 9% e fator de potência em torno de 0,99 e fornece tensão de saída regulada.Palavras-Chave -Distorção Harmônica, Fator de Potência, Retificador Multipulso, SEPIC. THREE-PHASE MULTIPULSE CONVERTER WITH REGULATED OUTPUT VOLTAGE BY SEPIC DC-DC STAGEAbstract -This paper presents the study and development of a three-phase AC-DC converter performed by a 18-pulses non-isolated rectifier, that has low weight and size, and three SEPIC converters that work as intermediate elements, ie, a DC-DC stage to connect the load, providing regulated output voltage and high frequency isolation if necessary. The proposed converter could replace conventional rectifiers stages with low power quality, such as used in variable speed drives (inverters), DC sources among others. Experimental results show that the converter has reduced harmonic content, with total harmonic distortion of input current less than 9% and power factor around 0.99 and provides regulated output voltage.

show abstract

“…Uma forma de reduzir as perdas e melhorar o rendimento é a adoção de técnicas não dissipavas, como circuitos ressonantes [15], que poderão ser realizados em trabalhos futuros.…”

Section: Tabela IV Resultados Do Ensaio Do Conversor a Plena Cargaunclassified

Conversor Trifásico Multipulso Com Regulação Da Tensão De Saída Através De Estágios CC/CC Sepic

Lourenco¹,

Seixas²,

Oliveira³

et al. 2017

Eletrônica de Potência

View full text Add to dashboard Cite

show abstract

“…The employment of snubber circuits contributes for reducing the converter switching losses [12][13][14], since it provides the suppression of sharp rises of switch voltage and current during the commutation process. A resistor-capacitor-diode (RCD) turn-off snubber can be used, however, all snubber energy is dissipated on the resistor R. On adding regenerative capability to this circuit, the energy absorbed during commutation can be recovered to the converter, therefore allowing an improvement on the system efficiency.…”

Section: Introductionmentioning

confidence: 99%

A SEPIC-energy-regenerative-snubber with linear current regulator for power LEDs

Burgardt

Agostini

Font

et al. 2014

2014 11th IEEE/IAS International Conference on Industry Applications

View full text Add to dashboard Cite

This paper presents an AC electronic lighting system using a non-isolated SEPIC PFC rectifier to drive and control power LEDs currents. One energy regenerative snubber for reducing the converter switching losses and improve the system efficiency is proposed. To reduce ripple current in the LEDs array a linear current regulator is placed in the SEPIC's output terminals. In order to reduce the efficiency impairment, the conditions for achieving minimum energy loss in the current regulator are also detailed. The main equations of the proposed energy regenerative snubber as well as the experimental results of a prototype that feeds 35 LEDs / 42 W are presented. In this paper, the system operates with 127 Volts of input voltage and the point of minimum energy loss in the linear regulator is adjusted in open loop to validate the converter operation.

show abstract

“…As different alternatives, the passive and the active snubber circuits have been adopted to reduce the reverserecovery loss of the output diode [10,11]. In [10], regenerative passive snubber circuits were applied to the continuous-conduction mode (CCM) SEPIC converter [12]. The diode reverse-recovery current and the switching loss are reduced by the passive snubber circuits.…”

Section: Introductionmentioning

confidence: 99%

Continuous-conduction-mode SEPIC converter with low reverse-recovery loss for power factor correction

Kwon

Choi

Lee

et al. 2006

IEE Proc., Electr. Power Appl.

View full text Add to dashboard Cite

A continuous-conduction-mode SEPIC converter with low reverse-recovery loss is proposed for power factor correction. The proposed SEPIC converter can reduce the reverserecovery loss of the diodes and improve the power efficiency. By utilising a coupled inductor and an additional diode, zero-current turn-off of the output diode is achieved. The reverse-recovery current of the additional diode is reduced by the leakage inductor of the coupled inductor. The proposed SEPIC converter provides high power efficiency and high power factor compared to the conventional PFC circuits employing the SEPIC converter. An operation principle and a detailed analysis of the proposed converter are presented. Experimental results are discussed for a 300 W (330 V/0.9 A) prototype under the universal input voltage (90-265 V). It is shown that the efficiency of the SEPIC converter can be significantly improved.

show abstract

Multiple alternatives of regenerative snubber applied to Sepic and Cuk converters

Cited by 13 publications

References 3 publications

Conversor Trifásico Multipulso Com Regulação Da Tensão De Saída Através De Estágios CC/CC Sepic

Conversor Trifásico Multipulso Com Regulação Da Tensão De Saída Através De Estágios CC/CC Sepic

A SEPIC-energy-regenerative-snubber with linear current regulator for power LEDs

Continuous-conduction-mode SEPIC converter with low reverse-recovery loss for power factor correction

Contact Info

Product

Resources

About