Results 41 to 50 of about 22,407 (307)

Analysis of energy processes in pulse converters of AC electric power

Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2015
The article presents the analysis of energy processes in switched-mode AC-AC converters of buck, boost and buck-boost types. The mathematical model of energy processes is obtained.
A. F. Kadatsky, A. P. Rusu
doaj   +1 more source

Single‐phase multi‐level AC–DC power conversion interface

IET Power Electronics, 2016
This study proposes a single‐phase multi‐level AC–DC power conversion interface that is composed of a power factor correction stage and a buck power conversion stage. The power factor correction stage is configured using two power factor correctors (PFCs) connected in cascade.
Jinn‐Chang Wu, Hurng‐Liahng Jou, Jyun‐Yi Jhang Jian   +2 more
openaire   +1 more source

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source

Feasibility of high frequency alternating current power distribution for the automobile auxiliary electrical system [PDF]

, 2011
This study investigates the feasibility and potential benefits of high frequency alternating current (HFAC) for vehicle auxiliary electrical systems. A 100Vrms, 50kHz sinusoidal AC bus is compared with 14V DC and 42V DC electrical systems in terms of ...
Antaloae, C. C.
core  

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

AC-DC Cuk Converter: A State-of-the-Art topological review

Energy Conversion and Management: X
AC-DC converters, which transform alternating current (AC) into controlled direct current (DC), are key instruments for systems requiring stable and efficient power conversion.
Istiak Ahmed, Asif Imties Alvy, Irfan Rahman, Md. Abdullah Al Hossain, Showrov Rahman, Abdullah Al-Hysam, Abdur Razzak   +6 more
doaj   +1 more source

Controllable AC/DC Integration for Power Quality Improvement in Microgrids

Advances in Electrical and Computer Engineering, 2019
Renewable energy sources can be connected to utility grids by using AC and DC integration methods. The AC integration is a practical and cost-effective method thanks to its simple structure; however, its power quality protection is weak.
KARABIBER, A.
doaj   +1 more source

Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita, Lucas R. L. Norg, Patrick Diederen, Clint van Hoesel, Christ H. L. Weijtens, Peter A. Bobbert, Reinder Coehoorn   +6 more
wiley   +1 more source

Review of recent progresses on gallium nitride transistor in power conversion application

International Journal of Sustainable Energy, 2020
Emerging demands in sustainable energy and power conversion applications are calling for high frequency and high efficiency switching devices. Gallium nitride (GaN) as one type of wide bandgap material has shown its potential in applications where high ...
Jiangbo Tian, Chunyan Lai, Guodong Feng, Debmalya Banerjee, Wenlong Li, Narayan C. Kar   +5 more
doaj   +1 more source

Power Decoupling Control for V2G/G2V/PV2G Operation Modes in Single-Phase PV/Battery Hybrid Energy System With Low DC-Link Capacitance

IEEE Access, 2021
Three-port intelligent conversion systems, interfacing photovoltaic (PV) arrays and electric vehicles (EVs), with an electrical grid, are a promising flexible infrastructure for future smart grids.
Zhigang Zhang, Bin Liu, Shaojian Song
doaj   +1 more source