Results 221 to 230 of about 2,048,778 (265)
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High-efficiency, high step-up DC-DC converters
IEEE Transactions on Power Electronics, 2003Many applications call for high step-up DC-DC converters that do not require isolation. Some DC-DC converters can provide high step-up voltage gain, but with the penalty of either an extreme duty ratio or a large amount of circulating energy. DC-DC converters with coupled inductors can provide high voltage gain, but their efficiency is degraded by the ...
null Qun Zhao, F.C. Lee
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Improved integrated boost-flyback high step-up converter
2010 IEEE International Conference on Industrial Technology, 2010High step-up ratio converters for low-voltage high-current energy sources are nowadays the focus of an intensive research activity by the power electronics community, thanks to the increasing interest for renewable energy sources like those based on photovoltaic modules and fuel-cells.
SPIAZZI, GIORGIO +4 more
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A New High Step-Up Interleaved LLC Converter
2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC), 2021In this study, a new LLC resonant converter for high-voltage high-power applications is introduced. The introduced power converter is a two-phase interleaved full-bridge based that uses a transformer with secondary and tertiary windings to obtain higher output voltage. Zero voltage switching (ZVS) at MOSFETs turn on and zero current switching (ZCS) for
Danesh Amani +2 more
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Step-Up Converter with High Order Selectivity
2019 IEEE Applied Power Electronics Conference and Exposition (APEC), 2019A new DC–DC boost converter with a positive output voltage that can be applied in applications requiring a wide range of voltage gain is proposed. Using a novel switch network, the proposed converter can achieve a high order of boost gain under low current stress while maintaining high efficiency. The operation of the proposed topology is analyzed, and
Gwangyol Noh, Jun Lee, Jung-Ik Ha
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High step-up single-stage boost inverter
2011 IEEE Energy Conversion Congress and Exposition, 2011This paper presents a high step-up single-stage boost inverter. The basic topology is known in the literature as a Z-source inverter (ZSI). The ZSI has the ability of buck-boost conversion. No dead time is needed in phase legs, so high reliability can be achieved.
Yufei Zhou +3 more
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High Step-Up Converter With Coupled-Inductor
IEEE Transactions on Power Electronics, 2005In this study, a high step-up converter with a coupled-inductor is investigated. In the proposed strategy, a coupled inductor with a lower-voltage-rated switch is used for raising the voltage gain (whether the switch is turned on or turned off). Moreover, a passive regenerative snubber is utilized for absorbing the energy of stray inductance so that ...
R.-J. Wai, R.-Y. Duan
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High step-up interleaved dc/dc converter with high efficiency
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020ABSTRACTIn this paper, a new non-isolated Interleaved dc/dc converter with high-voltage conversion ratio is presented.
Haixiong Ye +3 more
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Non-isolated high-step-up resonant DC/DC converter
2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016A non-isolated high-step-up resonant DC/DC converter made up of a resonant inverter and a passive switched-capacitor (SC) rectifier, is proposed in this paper. The proposed converter is free of transformer and coupled-inductor. Thus, issues related to the leakage inductance and the large volume magnetic component caused by large turn's ratio of high ...
Lai, CY +4 more
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High efficiency high step-up DC/DC converters - a review
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2011High efficiency high step-up DC/DC converters - a reviewThe renewable energy sources such as PV modules, fuel cells or energy storage devices such as super capacitors or batteries deliver output voltage at the range of around 12 to 70 VDC. In order to connect them to the grid the voltage level should be adjusted according to the electrical network ...
A. Tomaszuk, A. Krupa
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An interleaved high step-up switched-capacitor converter
The 5th Annual International Power Electronics, Drive Systems and Technologies Conference (PEDSTC 2014), 2014A combination of interleaving and switched-capacitor techniques is used to introduce a high step-up converter in this paper. High voltage gain without very high duty cycle and transformer can be achieved in the proposed converter. The configuration of the proposed converter not only reduces the current stress but also decreases the input current ripple,
Mohammad Rouhollah Yazdani +1 more
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