Results 61 to 70 of about 231,367 (247)
A line-voltage-sensorless synchronous rectifier
, 2019 A line-voltage-sensorless control for three-phase pulsewidth-modulated (PWM) synchronous rectifiers is presented. A line synchronization and unity power factor control are described.
Youm, JH, Lim, JW, Kwon, BH
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Synchronous Rectifier for High-Frequency Switch Mode Power Supplies using Phase Locked Loops
, 2020 To meet the ever increasing demands for small lightweight consumer chargers, solutions to achieve higher switching frequencies are required. In this paper we show that it is essential to implement a synchronous rectifier for furthering advancements in ...
Knott, Arnold +5 more
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Advanced Science, EarlyView.In bladder cancer, LRG1 binds to ANXA2 to trigger mitochondrial ROS‐dependent NETosis. This pathogenic cascade actively uncouples endothelial‐mural cell interactions, driving profound vascular destabilization. Consequently, targeting the LRG1‐ANXA2 axis attenuates the neutrophil burden and induces structural vascular normalization, offering a powerful ...
Dongshan Chen +8 more
wiley +1 more source
Advanced Science, EarlyView.Primary cultures of neuroblasts isolated from the nucleus basalis of Meynert of 12‐weeks‐old human foetuses were prepared. Whole‐cell patch‐clamp recordings were performed by injecting a depolarizing stimulus current (+500 pA; 500 ms), and the membrane voltage recorded; this stimulus current evoked periodic‐like oscillations in membrane voltage ...
Elisabetta Coppi +9 more
wiley +1 more source
Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics
Advanced Science, EarlyView.This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li +8 more
wiley +1 more source
Differential Tissue‐Coupled Powering for Battery‐Free Injectable Electroceuticals
Advanced Science, EarlyView.A thread‐like injectable neural stimulator is powered through differential tissue‐coupled powering (DTCP), which harvests RF‐frequency tissue potentials with an elongated receiver while preserving a injectable cross‐section. The system integrates an ASIC, stimulation electrodes, and a portable transmitter, enabling wireless peripheral nerve stimulation,
Han Wu +13 more
wiley +1 more source
Design of rotating rectifier for synchronous generator
, 2018 This diploma thesis is focused on the design of a rotating rectifier for a synchronous generator. Based on defined requirements, the new rotating rectifier concept has been created that allows a greater current range than existing rectifier used by ...
Skurka, Tomáš
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Inversor cinco níveis em corrente para o acionamento de motores elétricos [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2013.Neste trabalho apresenta-se um estudo sobre inversores trifásicos multiníveis em corrente, para o ...
Dupczak, Bruno Scortegagna
core
Advanced Science, EarlyView.A high‐power hybrid nanogenerator (HP‐HNG) with multi‐degree‐of‐freedom mechanical coupling is reported, integrating multi‐directional wave energy for output to achieve 1 + 1 > 2 energy harvesting. The HP‐HNG achieves a peak output power of 0.764 W, corresponding to a peak power density of 127.303 W m−3. At a wave frequency of 1 Hz, the HP‐HNG delivers
Shuai Ding +9 more
wiley +1 more source
A novel frequency-changer control strategy based on a virtual synchronous motor
CSEE Journal of Power and Energy Systems, 2019 The use of frequency-changers is widespread in daily electric power generation. If a frequency-changer could automatically adjust its power output according to the load status and power network operation, it would have a positive impact on power system ...
Weijie Dong, Keyan Liu, Chen Lv
doaj +1 more source