Results 71 to 80 of about 457,374 (249)

A Modified High Voltage Gain Quasi-Impedance Source Coupled Inductor Multilevel Inverter for Photovoltaic Application

Energies, 2020
The quasi-impedance source inverters/quasi-Z source inverters (Q-ZSIs) have shown improvement to overwhelmed shortcomings of regular voltage-source inverters (VSIs) and current-source inverters (CSIs) in terms of efficiency and buck-boost type operations.
Madasamy Periyanayagam, Suresh Kumar V, Bharatiraja Chokkalingam, Sanjeevikumar Padmanaban, Lucian Mihet-Popa, Yusuff Adedayo   +5 more
doaj   +1 more source

Single Phase Transformer-less Buck-Boost Inverter with Zero Leakage Current for PV Systems

, 2017
In this paper, a novel single-stage single-phase transformer-less buck-boost inverter is proposed, in which a reduced number of passive components is used.
Ali Mostaan, N. Soltani, Mohsen; id_orcid, Mohsen Soltani, Mostaan, Ali, Ahmed Abdelhakim, Abdelhakim, Ahmed, Blaabjerg, Frede; id_orcid, Frede Blaabjerg   +7 more
core   +1 more source

Energy Security and Sustainability in the GCC: The Conditional and Contested Role of AI and Digital Infrastructure

Sustainable Development, EarlyView.
ABSTRACT As Gulf Cooperation Council (GCC) economies pursue simultaneous commitments to national AI strategies, renewable energy targets, and Paris Agreement pledges, a key sustainable‐management question remains empirically unresolved: does digital and AI investment genuinely advance energy security and environmental sustainability in hydrocarbon ...
Alanoud Al‐Maadid, Mohamed Sami Ben Ali, Azmat Sher   +2 more
wiley   +1 more source

Conversores CC-CC básicos não isolados de três níveis [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.O trabalho apresenta o estudo dos conversores básicos não isolados de três níveis obtidos a partir de uma célula de ...
Bottion, Antonio José Bento
core  

Integrating multimodal data and machine learning for entrepreneurship research

Strategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary Extant research in neuroscience suggests that human perception is multimodal in nature—we model the world integrating diverse data sources such as sound, images, taste, and smell. Working in a dynamic environment, entrepreneurs are expected to draw on multimodal inputs in their decision making.
Yash Raj Shrestha, Vivianna Fang He
wiley   +1 more source

Paid‐free differentiation in freemium: Understanding the balance between discovery and cannibalization and its implications for paid product sales

Strategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary Entrepreneurs in digital markets often introduce free versions of their paid products to boost their visibility. This freemium strategy involves a trade‐off between discovery and cannibalization. We study how feature‐based differentiation between the paid product and its free version shapes this trade‐off and its consequences ...
Joey van Angeren, Ksenia Podoynitsyna, Fred Langerak   +2 more
wiley   +1 more source

A Novel High-Power-Factor Single-Switch Electronic Ballast for Compact Fluorescent Lamps

Eletrônica de Potência, 2004
In this paper a high-power-factor electronic ballast for compact fluorescent lamps based on the class E amplifier and featuring low voltage stress across the switch is presented.
Mario Ponce, Jaime E. Arau, Rene Osorio, Mario A. Juarez, J. Marcos Alonso   +4 more
doaj   +1 more source

Controle de oscilações em sistemas comutados com aplicações em eletrônica de potência [PDF]

, 2006
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Este trabalho apresenta uma proposta para controle (geração) de oscilações em sistemas comutados.
Kaster, Maurício dos Santos
core  

Control of dc capacitor voltages in diode-clamped multilevel inverter using bidirectional buck-boost choppers\ud

, 2012
The dc capacitors voltage unbalancing is the main technical drawback of a diode-clamped multilevel inverter (DCMLI), with more than three levels. A voltage-balancing circuit based on buck–boost chopper connected to the dc link of DCMLI is a reliable and ...
Ghosh, A., SHUKLA, A, JOSHI, A, Shukla, A., Joshi, A., GHOSH, A   +5 more
core   +1 more source

Improved Z Source Inverter Performance with Reduced Z-Source Voltage Stress and Current Mechanism Using Buck and Boost Approach [PDF]

, 2014
This paper presents a novel topology of Z-source inverter which can control the velocity of induction motor. The objective of our proposed topology is to improve the performance of Z-source inverter (ZSI) by reducing the voltage stress throughout the ...
, J. Shanmugapriyan, Dr. A. Chilambuchelvan, Dr. S. Vijayan
core   +1 more source