Results 11 to 20 of about 5,767 (214)
A deep‐sea sulfate‐reducing bacterium generates zero‐valent sulfur via metabolizing thiosulfate
mLife, 2022 Zero‐valent sulfur (ZVS) is a crucial intermediate in the sulfur geobiochemical circulation and is widespread in deep‐sea cold seeps. Sulfur‐oxidizing bacteria are thought to be the major contributors to the formation of ZVS.
Rui Liu +4 more
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Dynamic Level Changing for Full Range ZVS in Flying Capacitor Multi-Level Converters
IEEE Open Journal of Power Electronics, 2022 This paper presents a control technique for flying capacitor multi-level (FCML) converters to achieve zero-voltage switching (ZVS) across the full range of duty cycles, with application in high power density and high efficiency power converters. Previous
Margaret E. Blackwell +2 more
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IEEE Open Journal of Power Electronics, 2020 The ZVS T-type converter can be used as an alternative to the conventional ZVS-PWM full-bridge (FB) converter for applications where improved light-load operation is required.
Javad Khodabakhsh, Gerry Moschopoulos
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High‐frequency single‐switch PFC with frequency‐modulation controlled class‐E2 converter
IET Power Electronics, 2021 This paper presents a single‐switch zero‐voltage switching (ZVS) power‐factor correction converter based on the class‐E2 converter at 1 MHz switching frequency. A design method for ensuring the ZVS for the entire line‐voltage period is proposed.
Wenqi Zhu +5 more
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Hybrid ZVS Converter with a Wide ZVS Range and a Low Circulating Current [PDF]
Journal of Power Electronics, 2015 This paper presents a new hybrid soft switching dc-dc converter with a low circulating current and high circuit efficiency. The proposed hybrid converter includes two sub-converters sharing two power switches. One is a three-level PWM converter and the other is a LLC converter.
Bor-Ren Lin, Jia-Sheng Chen
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Applied Sciences, 2022 The isolated three-level DC/DC converter (ITLDC) can be used to charge electric vehicles. During the constant current charging stage, the ITLDC can be designed to realize nature zero voltage switching (ZVS).
Shaogui Fan +4 more
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Zero-Voltage-Switching Analysis Model of the Triple-Active-Bridge Converter
Energies, 2023 This study aims to analyze the zero-voltage-switching (ZVS) region of a Triple-Active-Bridge (TAB) converter with five degrees of freedom. A TAB converter is an isolated converter derived from a dual-active-bridge (DAB) converter and composed of three ...
Hyung-Jun Byun +3 more
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Commutation Processes in Multiresonant ZVS Bridge Converter [PDF]
Advances in Electrical and Electronic Engineering, 2008 The analysis of the multiresonant ZVS DC/DC bridge converter is presented. The control system of the converter is basedon the method of frequency control at the constant time of transistor turn-off with a phase shift. The operation of the circuit is givenand the operating range of the converter is defined where ZVS switching operation is assured ...
Luft, M., Szychta, E.
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Electronics Letters, 2021 This letter proposes a simplified zero‐voltage switching (ZVS) detection circuit and switching loss dynamic optimisation method. The proposed circuit and tuning method can automatically adjust the switching frequency of a synchronous buck converter to ...
Sizhao Lu, Xiaoting Deng, Siqi Li
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Energies, 2019 Photovoltaic (PV) power generation has shown a trend towards large-scale medium- or high-voltage integration in recent years. The development of high-frequency link PV systems is necessary for the further improvement of system efficiency and the ...
Rui Li, Fangyuan Shi, Xu Cai, Haibo Xu
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