Results 61 to 70 of about 13,310 (293)
Família de retificadores PWM unidirecionais três-níveis híbridos a capacitor chaveado com elevado fator de potência [PDF]
, 2015 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2015.Esta tese de doutorado tem por objetivo a proposta de uma nova família de conversores ca-cc três níveis ...
Cortez, Daniel Flores
core
Reliability of Capacitors for DC-Link Applications in Power Electronic Converters—An Overview [PDF]
IEEE Transactions on Industry Applications, 2014 DC-link capacitors are an important part in the majority of power electronic converters which contribute to cost, size and failure rate on a considerable scale. From capacitor users' viewpoint, this paper presents a review on the improvement of reliability of dc link in power electronic converters from two aspects: 1) reliability-oriented dc-link ...
Wang, Huai +1 more
openaire +1 more source
Advanced Functional Materials, EarlyView.We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim +7 more
wiley +1 more source
IEEE AccessReliability improvement of the Photovoltaic (PV) inverter has a high potential for reducing the cost of PV energy. The DC-link capacitor is one of the main components influencing the reliability of PV inverter systems. Various pulse-width modulation (PWM)
Jae-Heon Choi +2 more
doaj +1 more source
Evaluation of DC-link voltage ripple in five-phase PWM voltage source inverters
The Journal of Engineering, 2019 This paper presents the analysis of the DC-link voltage switching ripple in five-phase PWM voltage source inverters with balanced load. The analysis is particularly important for the design and selection of a DC-link capacitor making it possible to meet ...
M. Vujacic +4 more
doaj +1 more source
, 2010 This paper proposes a flying-capacitor-based chopper circuit for dc capacitor voltage equalization in diode-clamped multilevel inverters. Its important features are reduced voltage stress across the chopper switches, possible reduction in the chopper ...
Ghosh, Arindam +2 more
core +1 more source
Advanced Functional Materials, EarlyView.This study demonstrates that memristors can replace conventional 2T–1C driving circuits with simplified 1T–1 m architectures by exploiting resistance switching. With ultra‐low switching voltages (< ±0.2 V) and multi‐level resistance states, the memristors precisely control the current injected into organic light‐emitting diodes (OLEDs).
Dong Hyun Kim +6 more
wiley +1 more source
CES Transactions on Electrical Machines and SystemsCascaded H-bridge inverter (CHBI) with supercapacitors (SCs) and dc-dc stage shows significant promise for medium to high voltage energy storage applications.
Ye Zhang +4 more
doaj +1 more source
Fault Diagnosis of DC Link Electrolytic Capacitors in Inverter
The Transactions of the Korean Institute of Power Electronics, 2013 Electrolytic capacitors used for smoothing DC link voltage is one of the major root causes of fault in power electronic system. The aging of aluminum electrolytic capacitors is expressed by the increase of their equivalent series resistance (ESR) and the reduction of their capacitance.
openaire +2 more sources
Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications
Advanced Functional Materials, EarlyView.Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi +3 more
wiley +1 more source