Results 131 to 140 of about 66,529 (315)
A High Power Factor Symmetrical Switched-Mode Power Supply.
Revista Tecnologia, 2009 This paper proposes a switched-mode power supply (SMPS) with power factor correction. A preregulator boost converter is employed in order to obtain universal line voltage and reduced harmonic content of the input current. Two dc/dc forward converters are
Fernando Lessa Tofoli +1 more
doaj
Advanced Science, EarlyView.A hierarchically porous AOPIM‐CNT electrode enables uranium harvesting from seawater via adsorption‐promoted electrodeposition. Rapid diffusion and selective adsorption are coupled with electrochemical crystallization and spontaneous detachment, creating a self‐refreshing process that sustains high‐capacity, continuous extraction from ultradilute ...
Zejun Song +7 more
wiley +1 more source
Adiabatic DC-AC Power Converter with 99% Efficiency
, 2016 This paper describes a novel approach to building a high efficiency and dimensionally compact power converter / inverter. A prototype was built for the Google / IEEE Little Box competition. The converter takes a 400-450 V DC input and creates a single-phase 230V AC output. It is capable of supplying 2kW continuously to a load.
openaire
Progress in Strain Engineering of 2D‐Integrated Heterostructures for Ultrasensitive Sensors
Advanced Science, EarlyView.. ABSTRACT Two‐dimensional (2D) integrated heterostructures have emerged as a cornerstone in the advancement of next‐generation sensor technologies. These heterostructures, which combine materials with different dimensionalities, have led to significant breakthroughs in sensing performance and device integration.
That Buu Ton +4 more
wiley +1 more source
Advanced Science, EarlyView.A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang +3 more
wiley +1 more source
IET Energy Systems IntegrationInvestigation of power converters for use in industrial drive applications finds that these converters are used low reliable components. To overcome this issue, in this paper, advanced power converters (multi‐pulse AC–DC and multilevel DC–AC converter ...
Bhim Singh, Rohit Kumar
doaj +1 more source
Advanced Electronic Materials, EarlyView.This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley +1 more source
Analog Weight Update Rule in Ferroelectric Hafnia, Using picoJoule Programming Pulses
Advanced Electronic Materials, EarlyView.Resistive, ferroelectric synaptic weights based on BEOL‐compatible hafnia/zirconia nanolaminates are fabricated. Lateral downscaling the devices below 10 µm2 enables 20 ns programming with electrical pulses, dissipating ≤ 3 pJ. Experimental results show that final conductance state is set by pulse amplitude, and is largely independent of the initial ...
Alexandre Baigol +7 more
wiley +1 more source
A generic converter for experimentation based power electronics learning [PDF]
, 2010 This paper presents a low cost, modular, configurable and fully protected education tool based on a generic electronic converter to be used by students, providing them with skills regarding power electronics and converters, and enabling them to learn ...
Araújo, Rui Esteves +3 more
core
Advanced Electronic Materials, EarlyView.For self‐aligned top‐gate amorphous InGaZnO thin‐film transistors (TFTs), a capacitance‐voltage‐based extraction technique that directly reconstructs a lateral doping profile and key parameters is proposed. The extracted profiles are validated by direct comparison with the transfer‐length method.
Seung Joo Myoung +16 more
wiley +1 more source