Results 41 to 50 of about 11,901 (212)

A New Extendable Transformerless Quasi‐Resonant Step‐Up DC/DC Converter With Low Voltage and Current Stresses

Energy Science &Engineering, Volume 13, Issue 12, Page 6512-6526, December 2025.
Ultrahigh voltage gain ratio, extendable capability, three designing freedom degrees, low current stress, continuous input current, low voltage stress, common ground, load. small‐scale renewable energy applications. ABSTRACT This paper introduces a new expandable non‐isolated quadratic step‐up DC/DC converter with low voltage and current stresses as ...
Sara Hasanpour, Tohid Nouri
wiley   +1 more source

Highly Efficient Air Sterilization via Low‐Temperature Interfacial Evaporation in Inductively Heated Superhydrophilic Ferromagnetic Filters

Advanced Science, Volume 12, Issue 44, November 27, 2025.
The first low‐temperature interfacial evaporation air sterilization technology is presented. It is based on a superhydrophilic ferromagnetic micro/nano‐structured stainless‐steel filter, showing ultra‐efficient inductive heating. This technology has demonstrated over 99.6% of SARS‐CoV‐2 and RSV elimination at temperatures in the 60–80 °C range.
Arnau Fons, Cristina Vaca, Eloi Franco‐Trepat, Aritz Lafuente, José Luis Tajada, Albert Serrà, Jorge Diaz Pedroza, Sandra Franco, Rytis Boreika, Itziar Erkizia, Nuria Izquierdo‐Useros, Alberto López‐Ortega, Eneko Garaio, Maria Jose Esplandiu, Josep Nogues, Borja Sepúlveda   +15 more
wiley   +1 more source

Unified ZVS strategy for DAB with triple-phase-shift modulation in boost mode

The Journal of Engineering, 2019
In this study, the switching mode and working waveform of dual active bridge (DAB) converter under triple phase-shift modulation scheme is analysed, and an ALL-ZVS (zero voltage switching) control strategy of all devices for full-power range with voltage
Jian Qiu, Kai Shen, Anping Tong, Lijun Hang, Jiarui Liao   +4 more
doaj   +1 more source

High‐Isolation and Compact Wireless Power Supply for Gate Drivers of SiC Devices With Improved Class‐E Inverter

High Voltage, Volume 10, Issue 5, Page 1282-1292, October 2025.
ABSTRACT Gate drivers for high‐voltage silicon carbide (SiC) converters require a reliable power supply with strong isolation and compact size. However, existing gate driver power supplies (GDPS) with the transformer structure make it difficult to enhance the isolation performance while keeping the small coupling capacitance and volume.
Jianyu Pan, Sheng Yan, Haibo Tang, Xiaojie Fu, Yihui Zhao, Junwei Xiao, Hao Feng, Manlin Yang   +7 more
wiley   +1 more source

A Bilateral Zero-Voltage Switching Bidirectional DC-DC Converter with Low Switching Noise

Energies, 2018
This paper proposes a novel bilateral zero-voltage switching (ZVS) bidirectional converter with synchronous rectification. By controlling the direction and timing of excessive current injection, the main power switches can achieve bilateral ZVS under ...
Chien-Chun Huang, Tsung-Lin Tsai, Yao-Ching Hsieh, Huang-Jen Chiu   +3 more
doaj   +1 more source

Research on Modelling and Stability Characteristics of Electric Traffic Energy System Based on ZVS-DAB Converter

Journal of Electrical and Computer Engineering, 2020
We study and describe mostly used traditional simplified circuits for full-bridge Zero Voltage Switching-Dual Active Bridge (ZVS-DAB) converter and deduce their mathematical model. On this basis, we propose a high-frequency (HF) mathematical model, which
Ayiguzhali Tuluhong, Weiqing Wang, Yongdong Li, Haiyun Wang, Lie Xu   +4 more
doaj   +1 more source

Hybrid SPS Control for ISOP Dual-Active-Bridge Converter Based on Modulated Coupled Inductor With Full Load Range ZVS and RMS Current Optimization in DC Transformer Applications

IEEE Access, 2022
The Input-serial-output-parallel (ISOP) dual-active-bridge (DAB) converter is an attractive solution to be used as a DC transformer (DCT) in the DC power distribution system.
Xiaoying Chen, Jingtao Xu, Guo Xu
doaj   +1 more source

Ecophysical dynamics of beaver ponds in Arctic Alaska: Implications for permafrost, aquatic habitat, and water quality

Ecosphere, Volume 16, Issue 9, September 2025.
Abstract Beavers (Castor canadensis) are rapidly colonizing the North American Arctic, transforming aquatic and riparian tundra ecosystems. Arctic tundra may respond differently than temperate regions to beaver engineering due to the presence of permafrost and the paucity of unfrozen water during winter.
Thomas W. Glass, Ken D. Tape, Jason A. Clark, Sarah Ellen Johnston, Benjamin M. Jones, Paige Kehoe, Michael M. Loranty, Christopher V. Maio, Rodrigo Correa Rangel, V. Sebastian Zavoico   +9 more
wiley   +1 more source

Data‐Driven Temperature Deviation Estimation of a Proton Exchange Membrane Water Electrolyzer Stack from Electrochemical Impedance Using Machine Learning

IEEJ Transactions on Electrical and Electronic Engineering, Volume 20, Issue 9, Page 1488-1496, September 2025.
We developed a method to analyze temperature variations in proton exchange membrane water electrolysis stacks by using machine learning to interpret electrochemical impedance spectroscopy (EIS) data. To train the machine learning model, we artificially generated impedance data at various temperature differences by merging data from uniformly heated ...
Noboru Katayama, Ryoma Iki, Xing‐Xing Chen, Ka‐Hong Loo   +3 more
wiley   +1 more source

A novel ZVS full-bridge converter [PDF]

2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC), 2016
Conventional soft switching techniques are promising for improvement of efficiency in full bridge converters. However, efficiency of converters with employing such techniques is restricted due to narrow range of zero voltage switching (ZVS). In such situation, several methods have been proposed in the literature to cope with wide range of ZVS from no ...
Nasir, , Cobb, Jonathan E.
openaire   +1 more source