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High Frequency Transformer Based Improved Gamma ZSI with Lossless Snubber
IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 2018 This paper presents an improved single phase high frequency isolated gamma Z-source inverter (ZSI) with clamped diode. It consists of a high frequency transformer between the inverter bridge and load. A lossless snubber diode is employed to provide voltage clamping across the DC-link voltage to overcome the voltage overshoots caused by the leakage and ...
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A New Passive Lossless Snubber
IEEE Transactions on Power Electronics, 2021Galvanically isolated photovoltaic (PV) microinverters based on single-stage flyback topology have advantages: simplicity, better reliability, and low cost. But isolated flyback topology comes with voltage stresses on semiconductor switches caused by transformer leakage inductance.
Erlan Dzhunusbekov, Sagi Orazbayev
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A boost PFC rectifier with a passive lossless snubber circuit using coupled inductors methods
, 2012 In this paper, a boost PFC rectifier with a novel passive lossless snubber circuit is proposed to minimize switching loss for high power applications. The proposed lossless snubber is composed of the coupled inductors merged to the boost inductor.
Hee-Je Kim, Jee-Hoon Jung, Ju-Won Baek
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A Lossless Passive Snubber for Soft-Switching of Flyback Converters [PDF]
2024 IEEE 19th Conference on Industrial Electronics and Applications (ICIEA)To improve power density ftyback converters are required to operate at high switching frequencies resulting in higher power dissipation and lower efficiency This study aims to reduce the switching power losses of semiconductor switches and voltage spikes
Waseem Haider, Quang P. Ha
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Soft-Switching Interleaved PFC Converter with Lossless Snubber
IEEJ Transactions on Industry Applications, 2015Kiyoshi Ohishi, Yushi Araki
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Flyback lossless passive snubber
2015 IEEE Energy Conversion Congress and Exposition (ECCE), 2015To increase power conversion density, it is inevitably necessary to increase switching frequency. However, doing so has detrimental effects, including reduced efficiency and increased EMI under hard-switching operation. To prevent the side effects of high switching frequencies, soft switching methods present advantages.
Mehdi Mohammadi, Martin Ordonez
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A novel lossless snubber circuit
Proceedings, Fourth Annual IEEE Applied Power Electronics Conference and Exposition, 2003A simple lossless snubber circuit for use with a switch mode power converter is presented. The circuit uses a capacitor connected between the primary and tertiary windings of a transformer in such a way as to relieve the stress from the power semiconductor switch at both turn-on and turn-off.
L.D. Varga, N.A. Losic
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A Novel Lossless Snubber for Boost Converters
2006 IEEE International Symposium on Industrial Electronics, 2006Advanced transportation technologies, such as hybrid-electric vehicles, battery-electric vehicles, and fuel cell vehicles, rely on high-power DC/DC converters to interconnect and manage their power systems. Boost converters are especially useful in stepping-up the voltage from a battery or fuel cell to match the electric motor voltage range.
J. Marshall, M. Kazerani
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Interleaved Flyback Converter with a Lossless Snubber
International Review of Electrical Engineering (IREE), 2014In this paper, an interleaved flyback converter with a lossless snubber is presented. By freewheeling the energy stored in a snubber, the overall efficiency is improved. In addition, the proposed converter has small output current ripple due to its interleaving structure. Since the proposed converter operates in discontinuous-conduction mode (DCM), the
Se-Jin Kim, Hyun-Lark Do
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A passive lossless snubber for Bidirectional Buck/boost converter
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017A passive lossless snubber for soft-switching Bidirectional Buck/boost Converter (BBC) is proposed in this paper. Although the conventional lossless snubbers can effectively alleviate the switching losses during turn on and turn off transients, they can be applied to only the unidirectional converters, but not a bidirectional converter.
Hyung Ik Joo, Sang-Kyoo Han
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