Results 61 to 70 of about 148,390 (182)

Pulse-Amplitude-Modulation Full-Bridge Diode-Clamped Multilevel LLC Resonant Converter Using Multi-Neighboring Reference Vector Discontinuous PWM

open access: yesEnergies, 2022
A full-bridge diode-clamped multilevel LLC resonant converter suitable for power conversion systems that use high input voltage, such as railway vehicles, is proposed in this paper. In order to eliminate the voltage deviations of the capacitors connected
Min-Sup Song, Jae-Bum Lee
doaj   +1 more source

A Simplified Two‐Vector Approach for Common‐Mode Voltage Reduction in Model Predictive Control Drives of Permanent Magnet Synchronous Motor

open access: yesEnergy Science &Engineering, Volume 14, Issue 7, Page 3109-3117, July 2026.
In this study, a modified model predictive control scheme is proposed, in which a dedicated weighting factor is incorporated into the cost function to explicitly account for common‐mode voltage (CMV) effects during the control process. This modification leads to a significant reduction—up to 40%—in the magnitude of the generated CMV.
Javad Amini, Reza Roshanafekr
wiley   +1 more source

Inverse Design of Two‐Dimensional Magnonic Crystals via Topology Optimization with Frequency‐Domain Micromagnetics

open access: yesSmall Structures, Volume 7, Issue 7, July 2026.
Magnonic crystals (MCs) are an emerging class of metamaterial structures that manipulate spin‐wave propagation. This study identifies previously unknown, inverse‐designed MCs that achieve large magnonic bandgaps by combining a topology optimization framework with computational micromagnetics.
Ryunosuke Nagaoka   +4 more
wiley   +1 more source

Conversor CA-CC trifásico único com isolamento em alta frequência baseado no conversor CC-CC sepic operando no modo de condução descontínuo [PDF]

open access: yes, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2013Esta tese apresenta a análise e o projeto de um conversor CA-CC trifásico de alto fator de potência com ...
Tibola, Gabriel
core  

SYNCHRONOUS BALANCED OPERATION OF OPEN-END WINDING MOTOR DRIVE WITH TWO ISOLATED DC-SOURCES

open access: yesProblems of the Regional Energetics, 2009
Novel method of synchronized pulsewidth modulation (PWM) has been applied for balanced control of dual inverter-fed drive with an open-end-winding induction motor, supplied by two isolated dc-sources.
Oleschuk V.   +3 more
doaj  

A 0.002‐mm2 8‐bit 1‐MS/s low‐power time‐based DAC (T‐DAC)

open access: yesIET Circuits, Devices and Systems, 2021
Digital‐to‐analogue converters (DACs) are essential blocks for interfacing the digital environment with the real world. A novel architecture, using a digital‐to‐time converter (DTC) and a time‐to‐voltage converter (TVC), is employed to form a low‐power ...
Ali H. Hassan   +4 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

Design and Analysis of Three-Phase Three-Level PWM Inverter [PDF]

open access: yes, 2010
Design of three-phase three level PWM inverter and analysis of the output current harmonics are presented in this paper. The three-level inverter is designed to supply three-phase load and it is controlled by FPGA under several modulation techniques ...
Dahono, Pekik Argo
core  

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

open access: yesAdvanced Functional Materials, Volume 36, Issue 49, 18 June 2026.
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

Optimal Hybrid Pulse Width Modulation for Three-Phase Inverters in Electric Propulsion Ships

open access: yesMachines
Global interest in environmentally friendly ships has surged as a result of greenhouse gas reduction policies and the demand for carbon neutrality. Despite growing demand for electric propulsion systems, there is a lack of research and development on ...
Chan Roh   +5 more
doaj   +1 more source

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