Results 51 to 60 of about 113,766 (308)
Compherensive design of a 100 kW/400 V high performance AC-DC converter [PDF]
, 2015 In this paper, a comprehensive design for a 100kW/400V, three-phase pulse-width modulated (PWM) AC-DC converter is presented that serves as the front-end power supply for wide-range varying active load. This power supply includes two series stages; a six-
Aran, Hadi +2 more
core +2 more sources
Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals
Advanced Functional Materials, EarlyView.Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus +5 more
wiley +1 more source
Dc to ac converter operates efficiently at low input voltages [PDF]
, 1965 Self-oscillating dc to ac converter with transistor switching to produce a square wave output is used for low and high voltage power sources.
core +1 more source
Charge‐Induced Morphing Gels for Bioinspired Actuation
Advanced Functional Materials, EarlyView.This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu +4 more
wiley +1 more source
Development of a DC-AC power conditioner for wind generator by using fuzzy logic [PDF]
, 2011 In this project, a fuzzy logic controller is designed to obtain the desired output voltage of DC-AC power conditioner used in a stand alone wind generator which the Fuzzy Logic Controller (FLC) is employed to control the modulation index of the SPWM
Mohamed Jelwal, Faisel
core
Analysis of AC link topologies in non-isolated DC/DC triple active bridge converter for current stress minimization [PDF]
, 2017 This paper presents analysis of the non-isolated DC/DC triple active bridge (TAB) converter under various purely inductor-based AC link topologies. The objective of the analysis is to find the topology that incorporates the least value of the AC link ...
Aboushady, Ahmed A. +2 more
core +3 more sources
3D Digital Light Processing of Redox‐Active Polymers for Electrochemical Applications
Advanced Functional Materials, EarlyView.3D printing of electrochemically switchable conducting polymers is achieved by Digital Light Processing of redox‐active carbazole‐based polymer materials. Complex 2D and 3D architectures including dot arrays and pyramids clearly show the potential for novel 3D switchable electrochemical devices for sensors, electrochromic displays as well as 3D printed
Christian Delavier +4 more
wiley +1 more source
Fault analysis in the 5-level multilevel NCA DC–AC converter
Automatika, 2023 The existing neutral clamped active inverter has common mode voltage with the high frequency which can reduce the severity with less voltage gain. The traditional active neutral point clamped (APC) DC–AC converter maintains great common mode voltage with
Perumal B, Suresh K, Parimalasundar E
doaj +1 more source
Electroactive Liquid Crystal Elastomers as Soft Actuators
Advanced Functional Materials, EarlyView.Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley +1 more source
Design, implementation and performance evaluation of multi-function boost converter
Scientific Reports, 2023 This paper introduces a single-phase multi-function converter (MFC) circuit that can perform the power electronics functions of a DC–DC, a DC–AC, an AC–AC, and an AC–DC boost converter.
Marwa S. Osheba +2 more
doaj +1 more source