Results 71 to 80 of about 135 (130)

High-resolution FPGA-pulse width modulation applied to PFC 2 MHz converter using eGaN field effect transistor

open access: yesThe Journal of Engineering, 2019
This study proposes an implementation based on a low-cost field-programmable gate array (FPGA) of a high-resolution pulse width modulation applied on a single-phase power factor correction (PFC) converter operating with 2 MHz switch frequency.
José Augusto Arbugeri   +2 more
doaj   +1 more source

Application Status and Development Trends of DC Ice‐Melting Devices in China's Power Grid

open access: yesIET Smart Energy Systems, EarlyView.
This paper summarises the development history and engineering application status of DC ice‐melting devices (DCIMD) in China, analyses the principles, advantages, disadvantages and adaptability of mainstream topologies and discusses the key problems and corresponding improvement directions.
Ming Lei   +6 more
wiley   +1 more source

Self-organising technique for carrier synchronisation and phase offset distribution in modular, fault-tolerant converters

open access: yesThe Journal of Engineering, 2019
Carrier interleaved pulse width modulated modular multilevel converters provide multiple benefits including increased effective switching frequency, switching frequency harmonic elimination, and reduced filter requirements. For converters comprising high
Mark A. H. Broadmeadow, Kenneth D. Sands
doaj   +1 more source

Mechanical stiffness orchestrates distinct regulation of MRTFs and YAP/TAZ transcriptional cofactors in hepatocytes

open access: yesThe FEBS Journal, EarlyView.
MRTFs and YAP/TAZ proteins, or mechanosensitive transcriptional cofactors (MRTcoF), regulate common genes associated with cellular contractility and immune cell infiltration. Their differential regulation in response to stiffness is linked to changes in hepatocyte's aspect ratio. MRTFB does not undergo nuclear translocation under these conditions. This
Brenda Selene Torres‐Ortiz   +13 more
wiley   +1 more source

Seven-level inverter with switched capacitors

open access: yesThe Journal of Engineering, 2019
The seven-level (7L) inverter with a nearly sinusoidal output voltage is suitable for renewable energy conversion applications. A novel 7L inverter topology with switched capacitors is proposed here.
Xuezhi Wu   +5 more
doaj   +1 more source

Improvement of electromagnetic compatibility of traction substation convertors with supply grid and catenary

open access: yes, 2016
Дисертація на здобуття вченого ступеня кандидата технічних наук за фахом 05.09.12 – напівпровідникові перетворювачі електроенергії. – Національний технічний університет "Харківський політехнічний інститут" – Харків - 2016.
Плахтій, Олександр Андрійович   +1 more
core  

Social capital and grassroots organisational change: a comparative case study from post‐Morakot Taiwan

open access: yesDisasters, Volume 50, Issue 3, July 2026.
Abstract Grassroots organisations (GOs) often emerge spontaneously in disaster contexts to fill gaps left by formal authorities, changing their structures and functions to meet evolving community needs. While prior research documents these transformations, it offers limited insight into why they occur and what they mean for disaster recovery.
Pak Wan Major Pau
wiley   +1 more source

900 V GaN-based sine-wave inverters for three-phase industrial applications

open access: yesThe Journal of Engineering, 2019
GaN devices are gradually getting attention within the industry along with SiC as a potential wide bandgap device. At present, there are almost no high-voltage GaN devices with voltage >650 V, which makes an inverter design difficult for a three-phase ...
Nilanjan Mukherjee   +3 more
doaj   +1 more source

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 40, Issue 6, Page 1196-1220, June 2026.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg   +5 more
wiley   +1 more source

A new three‐level simplified sparce NPC topology for UHS PMSM motor applications

open access: yesIET Electric Power Applications
In ultra‐high speed (UHS) motor applications, full SIC two‐level (2L) inverters with high switching frequencies are generally used due to their lower cost.
Aleksandr Sheianov, Xi Xiao, Xudong Sun
doaj   +1 more source

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