Passive lossless snubber with minimum voltage and current stress for boost PFC

Li, River T. H.; Chung, Henry Shu-Hung; Sung, Anson K. T.

doi:10.1109/ecce.2009.5316217

Cited by 17 publications

(25 citation statements)

References 17 publications

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“…Klasik YA hücreleri her ne kadar avantajlı yapılar sunsa da onlarında kendi içinde aşılması gereken problemleri vardır. Bazı dönüştürücülerde iletime girmede çok iyi SAA sağlansa da kesime girmede yarı-SGA ile anahtarlama gerçekleşir [8], bazılarında ise iletime girmede SAA yeterince iyi değildir [9][10]. Ana akım yolları üzerinde yardımcı yarıiletkenlerin olması ise dönüştürücünün toplam verimini önemli ölçüde düşürür [11].…”

Section: Gi̇ri̇ş (Introduction)unclassified

Darbe Genişlik Modülasyonlu DA‒DA Dönüştürücüler İçin Yeni Bir Yumuşak Anahtarlamalı Pasif Bastırma Hücresi

Şahin¹,

Tınğ²

2017

Journal of Polytechnic

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Section: Gi̇ri̇ş (Introduction)unclassified

Darbe Genişlik Modülasyonlu DA‒DA Dönüştürücüler İçin Yeni Bir Yumuşak Anahtarlamalı Pasif Bastırma Hücresi

Şahin¹,

Tınğ²

2017

Journal of Polytechnic

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“…Various soft switching techniques using active and passive snubber circuits have been proposed [10]- [21]. The active snubber circuits can achieve zero voltage switching (ZVS) and zero current switching (ZCS) for the main switch.…”

Section: Introductionmentioning

confidence: 99%

Passive Lossless Snubbers Using the Coupled Inductor Method for the Soft Switching Capability of Boost PFC Rectifiers

Kim¹,

Baek²,

Ryu³

et al. 2015

Journal of Power Electronics

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In order to minimize switching losses for high power applications, a boost PFC rectifier with a novel passive lossless snubber circuit is proposed. The proposed lossless snubber is composed of coupled inductors merged into a boost inductor. This method compared with conventional methods does not need additional inductor cores and it reduces extra costs to implement a soft switching circuit. Especially, the proposed circuit can reduce the reverse recovery current of output diode rectifiers due to the coupling effect of the inductor. During turn-on and turn-off operating modes, the proposed PFC converter operates under soft switching conditions with high power conversion efficiency. In addition, the performance improvement and analysis of the operating effects of the coupled inductors were also presented and verified with a 3.3 kW prototype rectifier.

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“…Yet the polarity and the pre-charge voltage of the capacitor would impact the load voltage and the turn-off time, and no detailed circuits were listed. Computing methods of absorbing network parameters were proposed in [9][10][11][12][13], while no discussion was given about the issues of interest in the present article. The circuit in [14] was a current pulse shaper of a voltage-stabilizing clamp; it could achieve short turn-off time with a linear falling edge and fast rising edge.…”

Section: Introductionmentioning

confidence: 99%

Constant Voltage-clamping Bipolar Pulse Current Source for Transient Electromagnetic System

Zhao

Liu

et al. 2013

Electric Power Components and Systems

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This article proposes a bipolar pulse current source for the transient electromagnetic system. This current source consists of a full-bridge converter circuit, a constant voltage-clamping circuit, and a damping-snubber circuit. Bipolar pulses are generated by the full-bridge converter circuit. During the rising edge of the pulse current, the high voltage generated by the constant voltage-clamping circuit is added to the load, which will enhance the rising speed of the pulse current and help the current quickly stabilize. Similarly, for the falling edge, the constant voltage acts on the load, brings out a linear falling edge, and efficiently shortens the turn-off time. The damping snubber circuit is then used to eliminate the ringing happening in the current-reduced-to-zero vicinity. Its operation principles are described, and calculations of the main parameters are also provided. Simulation and experimental results show that the current source has a fast rising edge, a highly linear falling edge, and a short turn-off time, which helps to enhance the transmitting frequency of the current source and the efficiency of the transient electromagnetic system.

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Passive lossless snubber with minimum voltage and current stress for boost PFC

Cited by 17 publications

References 17 publications

Darbe Genişlik Modülasyonlu DA‒DA Dönüştürücüler İçin Yeni Bir Yumuşak Anahtarlamalı Pasif Bastırma Hücresi

Darbe Genişlik Modülasyonlu DA‒DA Dönüştürücüler İçin Yeni Bir Yumuşak Anahtarlamalı Pasif Bastırma Hücresi

Passive Lossless Snubbers Using the Coupled Inductor Method for the Soft Switching Capability of Boost PFC Rectifiers

Constant Voltage-clamping Bipolar Pulse Current Source for Transient Electromagnetic System

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