Results 21 to 30 of about 24,064 (137)

Modified capacitor voltage balancing sorting algorithm for modular multilevel converter

open access: yesThe Journal of Engineering, 2019
The modular multilevel converter (MMC) with large-scale sub-modules has the advantage of simpler modulation, lower switching frequency, and lower harmonic component, thus would be very promising in voltage source converter (VSC)–high voltage direct ...
Jie Zhang   +5 more
doaj   +1 more source

GaN-Based Versatile Waveform Generator for Biomedical Applications of Electroporation

open access: yesIEEE Access, 2020
Biomedical applications often require high-performance power supplies for diagnosis and treatment systems. In particular, modern electroporation techniques for cancer treatment require high-voltage generators with versatile waveform generation.
Hector Sarnago   +5 more
doaj   +1 more source

Modular multilevel converter with DHB energy-balancing channels for medium-voltage adjustable-speed drives

open access: yesThe Journal of Engineering, 2019
This paper presents a modular multilevel converter (MMC) configuration that utilises energy exchange between sub-modules (SMs) of upper and lower arms, for energy rebalancing.
Mohamed S. Diab   +4 more
doaj   +1 more source

Reliability study on DC-link capacitor in fault states of VSI in elective vehicle

open access: yesThe Journal of Engineering, 2019
DC-input side of the inverter to balance input and output power, eliminate voltage fluctuation, and reduce the voltage spike in the input side. The reliability study on DC-link capacitor under fault state is critical to the safe operation of the whole ...
Fang Yao   +3 more
doaj   +1 more source

The Influence of Thermal Processing with H2 Atmosphere on the Physical Properties and Microstructure for use in Electrolytic Capacitors of Nb [PDF]

open access: yesMaterials Research
This study evaluated the effect of thermal processing in hydrogen (H2) and argon (Ar) atmospheres on the physical and microstructural properties of niobium (Nb) powders for electrolytic capacitors.
A.S. Silva   +8 more
doaj   +1 more source

SIMULTANEOUS ALLOCATION OF MULTIPLE DISTRIBUTED GENERATION AND CAPACITORS IN RADIAL NETWORK USING GENETIC-SALP SWARM ALGORITHM

open access: yesElectrical engineering & Electromechanics, 2020
Purpose. In recent years, the problem of allocation of distributed generation and capacitors banks has received special attention from many utilities and researchers.
Chabane Djabali, Tarek Bouktir
doaj   +1 more source

A Review of Ionic Liquids and Their Composites with Nanoparticles for Electrochemical Applications

open access: yesInorganics
The current study focuses on reviewing the actual progress of the use of ionic liquids and derivatives in several electrochemical application. Ionic liquids can be prepared at room temperature conditions and by including a solution that can be a salt in ...
José Pereira, Reinaldo Souza, Ana Moita
doaj   +1 more source

Recent progress on dielectric polymers and composites for capacitive energy storage

open access: yesiEnergy, 2022
Polymer dielectrics-based capacitors are indispensable to the development of increasingly complex, miniaturized and sustainable electronics and electrical systems.
Zhubing Han, Qing Wang
doaj   +1 more source

Performance and operation of stressed dual gap RF MEMS varactors

open access: yesJournal of Telecommunications and Information Technology, 2023
The design, fabrication and measurement of a continuously tunable RF MEMS capacitor is described. The capacitor’s dual gap height architecture allows for electrostatic tuning with low resistive loss and a large tuning range.
Greg McFeetors, Michal Okoniewski
doaj   +1 more source

Capacitance–Voltage Fluctuation of SixNy-Based Metal–Insulator–Metal Capacitor Due to Silane Surface Treatment

open access: yesMicromachines
In this study, we analyze metal–insulator–metal (MIM) capacitors with different thicknesses of SixNy film (650 Å, 500 Å, and 400 Å) and varying levels of film quality to improve their capacitance density.
Tae-Min Choi   +4 more
doaj   +1 more source

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