Results 91 to 100 of about 989 (143)

Flyback lossless passive snubber

2015 IEEE Energy Conversion Congress and Exposition (ECCE), 2015
To 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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Interleaved Flyback Converter with a Lossless Snubber

International Review of Electrical Engineering (IREE), 2014
In 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 Novel Lossless Snubber for Boost Converters

2006 IEEE International Symposium on Industrial Electronics, 2006
Advanced 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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A novel lossless snubber circuit

Proceedings, Fourth Annual IEEE Applied Power Electronics Conference and Exposition, 2003
A 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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Soft‐Switching Interleaved PFC Converter with Lossless Snubber

Electrical Engineering in Japan, 2016
SUMMARYThis paper describes a soft‐switching interleaved power factor correction (PFC) converter with a lossless snubber. AC–DC converters require a unity input power factor characteristic with highly efficient operation to prevent the inflow of harmonic current to the power source.
ITARU ANDO, KODAI ABE, TOMOAKI NAKAMURA, YUSHI ARAKI, KIYOSHI OHNISHI   +4 more
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Multi-output auxiliary power supply with lossless snubber

2011 6th IEEE Conference on Industrial Electronics and Applications, 2011
A multi-output auxiliary power supply realized by a flyback converter is presented for providing the needed low power supplied for the control circuits and driving circuits in power processing systems. In the proposed circuit topology, lossless snubbers are introduced into the flyback converter to recover energy trapped in leakage inductor of ...
G.-K. Chang, S.-Y. Fan, S.-Y. Tseng
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A passive lossless snubber for Bidirectional Buck/boost converter

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017
A 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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Passive lossless snubber for CCM PFC based on magnetic coupling

2011 International Conference on Electrical Machines and Systems, 2011
Boost converter is the most popular topology in power factor corrector (PFC), which contains a switch and a diode. However the reverse recovery characteristic of silicon material diode enlarges the turning-on power losses of switch. In this paper, a novel passive lossless snubber based on magnetic coupling is proposed for continuous conduction mode ...
Qinglin Zhao, Jianyong Zhang, Chuang Zhao   +2 more
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A Lossless Passive Snubber Circuit for Three-Port DC–DC Converter

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
In this article, a soft-switched nonisolated high step-up three-port dc–dc converter is presented for hybrid energy system applications. In the proposed converter, the soft-switching condition is provided for semiconductor elements by a passive lossless snubber without adding any extra active switch or adding any additional semiconductor element in the
Rasoul Faraji, Hosein Farzanehfard, Morteza Esteki, Sayed Ali Khajehoddin   +3 more
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A novel passive lossless soft-switching snubber for PWM inverters

2009 Chinese Control and Decision Conference, 2009
This paper presents a novel passive lossless snubber circuit for pulse-width modulation (PWM) inverters to achieve soft-switching purposes without an extra switch and additional control circuitry. This novel passive lossless soft-switching snubber employs an inductor/capacitor snubber circuit for each switching device in an inverter to achieve passive ...
null Wang Qiang, null Zhang Huaguang, null Chu Enhui, null Hou Limin   +3 more
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