Results 41 to 50 of about 23,486 (289)
Energies, 2023 Modular multilevel converters (MMCs) have been conceived as an alternative in front-end converter applications to enhance the converter system’s reliability, minimize total harmonic distortion, and improve power quality.
Muhammad Ali +4 more
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Effects of Surface Transition and Adsorption on Ionic Liquid Capacitors [PDF]
, 2020 Room-temperature ionic liquids (RTILs) are synthetic electrolytes with electrochemical stability superior to that of conventional aqueous-based electrolytes, allowing a significantly enlarged electrochemical window for application as capacitors.
Chao, Huikuan, Wang, Zhen-Gang
core
Carbon-Supported Manganese Dioxide as Electrode Material For Asymmetric Electrochemical Capacitors
International Journal of Electrochemical Science, 2014 Composites of carbon nanotubes and activated carbon with manganese dioxide (MN MnO2, DN MnO2, AC2 MnO2) were chosen as positive electrodes and activated carbon (AC1) with well-developed surface area as negative electrode.
Ilona Acznik +3 more
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Expanded Graphite-Based Materials for Supercapacitors: A Review
Molecules, 2022 Supercapacitors have gained e wide attention because of high power density, fast charging and discharging, as well as good cycle performance. Recently, expanded graphite (EG) has been widely investigated as an effective electrode material for ...
Dan Zhang +5 more
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Force on an Asymmetric Capacitor
, 2002 25 pages, new version has corrections of typos and wording, and additional references added. This version is to be published as an Army Research Laboratory Technical Report (in press, March 2003)
Bahder, Thomas B., Fazi, Chris
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Lithium-Ion Capacitors: A Review of Design and Active Materials
Energies, 2021 Lithium-ion capacitors (LICs) have gained significant attention in recent years for their increased energy density without altering their power density.
Jacob J. Lamb, Odne S. Burheim
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Improved natural balancing with modified phase shifted PWM for single-leg five-level flying-capacitor converters [PDF]
, 2012 Flying capacitor converters (FCCs), as most multilevel converter topologies, require a balancing mechanism of the capacitor voltages. FCCs have the valuable property of natural voltage balancing when a special modulation technique is used.
Melkebeek, Jan +3 more
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Model Predictive Control of an Asymmetric Flying Capacitor Converter
IEEE Transactions on Industrial Electronics, 2009 Multilevel converters and, in particular, flying capacitor (FC) converters are an attractive alternative for medium-voltage applications. FC converters do not need complex transformers to obtain the DC-link voltage and also present good robustness properties, when operating under internal fault conditions.
Lezana, Pablo +2 more
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Electrode-dependent asymmetric conduction mechanisms in K0.5Na0.5NbO3 micro-capacitors
Materials Science in Semiconductor Processing, 2023 The ultimate performance of devices employing lead-free piezoelectrics is determined not only by the intrinsic properties of the piezo, but also by processes and materials employed to create the electric contacts. In this paper, we investigate the impact of different metallic electrodes with increasing chemical reactivity (Pt, Ni, Ti, Cr), on the ...
Groppi, C +9 more
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Design of low stress and high efficiency asymmetric half-bridge converter
Dianzi Jishu Yingyong, 2018 Asymmetrical half bridge converter has problems that wide power output efficiency is not ideal, the voltage and current stress is large, and rectifier diode has voltage ringing problem. So a low stress and high efficiency asymmetric half-bridge converter
Yao Yueqin, Lu Zhengkai
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