Results 31 to 40 of about 922 (227)

An Improved Phase-Shifted DPWM Method for Reducing Switching Loss and Thermal Balancing in Cascaded H-Bridge Multilevel Inverter

open access: yesIEEE Access, 2020
This paper proposes an improved discontinuous pulse-width modulation (DPWM) method based on phase-shifted PWM (PS-PWM) for three-phase cascaded H-bridge (CHB) multilevel inverters.
Seok-Min Kim   +3 more
doaj   +1 more source

A Comprehensive Review of Reduced Device Count Multilevel Inverters for PV Systems

open access: yesEnergies, 2023
This article presents a comprehensive review of reduced device count multilevel inverter (RDC MLI) topologies for PV systems. Multilevel inverters are widely used in medium-voltage and high-power applications such as wireless power transform applications,
Abdul Jabbar Memon   +3 more
doaj   +1 more source

Bio‐Inspired Multimodal Hardware Front‐End Enabled by 2D Floating‐Gate Memory for UAV Perception

open access: yesAdvanced Functional Materials, EarlyView.
A MoS2/h‐BN /graphene floating‐gate memory underpins a bio‐inspired multimodal front end that integrates visual, inertial, and airflow cues. A 4 × 4 FG memory array encodes temporal intensity differences, while IMU‐ and airflow‐driven threshold modulation suppresses self‐motion artifacts, enabling fast, low‐power, robust autonomous UAV tracking and ...
Lianghao Guo   +11 more
wiley   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

open access: yesAdvanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu   +5 more
wiley   +1 more source

Power quality enhancement in asymmetrical cascaded multilevel inverter using modified carrier level shifted pulse width modulation approach

open access: yesIET Power Electronics, EarlyView., 2022
New modified carrier‐based level shifted pulse width modulation approaches for single‐phase trinary dc source fed cascaded H‐bridge inverters are proposed in this article. In order to suppress the lower order harmonics, the carrier frequency is often tuned higher. However, switching and electromagnetic interference problems have a significant influence
Arun Vijayakumar   +4 more
wiley   +1 more source

Cascaded Multilevel Structure With Three-Phase and Single-Phase H-Bridges for Open-End Winding Induction Motor Drive

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2023
A new multilevel topology for an open-end winding motor drive is proposed in this article, presenting a similar structure to the cascaded H-bridge multilevel inverter.
Vitor Fernao Pires   +4 more
doaj   +1 more source

Hydrogel Confinement Strategies for 3D Cell Culture in Microfluidic Systems

open access: yesAdvanced Materials Technologies, EarlyView.
Hydrogel confinement structures are key to organizing 3D cell cultures in microfluidic devices. This review classifies five structural strategies (micropillar, phaseguide, porous membrane, stepped‐height, and support‐free) and examines their trade‐offs alongside fabrication methods.
Soohyun Kim, Min Seok Lee, Sung Kyun Lee
wiley   +1 more source

An Extensive Investigation on Intelligent-Based Control Techniques for the Performance Improvement in Multilevel Inverters

open access: yesIEEE Access
Multilevel inverters have become an essential technology in modern power electronics, offering benefits like reduced harmonic distortion with lower electromagnetic interference and enhanced efficiency applicable to electric vehicles, industrial drives ...
N. Subramanian, Albert Alexander Stonier
doaj   +1 more source

Real-Time Implementation of a 31-Level Asymmetrical Cascaded Multilevel Inverter for Dynamic Loads

open access: yesIEEE Access, 2019
Among the renewable energy applications, the most popular inverters are cascaded multilevel inverters. Irrespective of numerous benefits these inverters face reliability issues due to the presence of more circuit components in the design. This has been a
C. Dhanamjayulu   +6 more
doaj   +1 more source

Promoting Treg Polarization‐Mediated Anti‐Scar and Appendage Regeneration in Wound Healing

open access: yesAdvanced Science, EarlyView.
This study develops a PLGA@LA‐BMP4‐PG bilayer scaffold to address scar formation and appendage loss in skin repair. The piezoelectric PLA layer enhances cell migration via electric fields, while GelMA delivers LA promoting Tregs polarization and BMP4 inhibiting FBs differentiation.
Yiwen Yang   +10 more
wiley   +1 more source

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