Results 41 to 50 of about 2,216,872 (294)

Reliability of DC-link Capacitors in Three-Level NPC Inverters under different PWM Methods [PDF]

, 2022
Pulse-width modulation (PWM) method plays an important role to ensure high efficiency and reliability of the three-level neutral-point-clamped (NPC) inverter.
Sangwongwanich, Somboon, Sangwongwanich, Ariya; id_orcid, Novak, Mateja; id_orcid, Blaabjerg, Frede; id_orcid, Somboon Sangwongwanich, Mateja Novak, Frede Blaabjerg, Ariya Sangwongwanich   +7 more
core   +1 more source

Analog Classification of Human Hand Gestures Exploiting Dendritic Integration With an Organic Artificial Soma

Advanced Functional Materials, EarlyView.
An organic neuromorphic architecture for the classification of human motor behavior is presented and validated. It performs somatic integration by linearly combining the activity from three muscles. An investigation of synaptic weights is presented and discussed in relationship with the classification performance.
Ilenia Sergi, Federico Rondelli, Francesco Torricelli, Federica Velluto, Anna De Salvo, Michele Di Lauro, Luciano Fadiga, Fabio Biscarini   +7 more
wiley   +1 more source

Switched mode power supplies for charge-up, discharge and balancing dc-link capacitors of diode-clamped five-level inverter

, 2010
Inductor switch mode power supplies (SMPS) operated in a discontinuous inductor current mode are used to balance the dc-link capacitor voltages of a diode-clamped five-level inverter.
Ashaibi, Ahmed, B.W. Williams, S.J. Finney, A.M. Massoud, Ashaibi, A. A., Williams, B. W., Finney, Stephen, Williams, Barry, Massoud, Ahmed, A.A. Ashaibi, Finney, S.,J.   +10 more
core   +3 more sources

Coordinated Capacitor Voltage Balancing Method for Cascaded H-Bridge Inverter with Supercapacitor and DC-DC Stage

CES Transactions on Electrical Machines and Systems
Cascaded H-bridge inverter (CHBI) with supercapacitors (SCs) and dc-dc stage shows significant promise for medium to high voltage energy storage applications.
Ye Zhang, Zixin Li, Fanqiang Gao, Cong Zhao, Yaohua Li   +4 more
doaj   +1 more source

Design and Control of Small DC-Link Capacitor-Based Three-Level Inverter with Neutral-Point Voltage Balancing

Energies, 2018
This paper presents a method to improve the quality of input-output currents in a three-level neutral-point clamped (NPC) inverter with small direct current-link (DC-link) capacitor systems.
Hyo-Chul In, Seok-Min Kim, Kyo-Beum Lee
doaj   +1 more source

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

Advanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri, Asif Abdullah Khan, Md Fahim Al Fattah, Mahmoud Almadhoun, Shamaila Shahzadi, Aixi Pan, Md Soyaeb Hasan, Henry Wu, Arash Aghigh, Bhawna Bhawna, François Légaré, Vivek Maheshwari, Dayan Ban   +12 more
wiley   +1 more source

Reliability Evaluation of DC-link Capacitors in Multi-drive Systems

, 2019
This paper proposes a time-efficient equivalent model for the ripple current analysis of DC-link capacitors in multi-drive systems and investigates the impact of number of drives and grid voltage unbalance on the capacitor lifetime.
Huang, Shili, Wang, Haoran, Huai Wang, Zhu, Guorong, Dinesh Kumar, Kumar, Dinesh, Guorong Zhu, Wang, Huai, Shili Huang, Haoran Wang   +9 more
core   +1 more source

Magneto‐Ionic Devices With Polymer‐Based Electrolytes

Advanced Functional Materials, EarlyView.
Polymer electrolytes are introduced for magneto‐ionic devices based on hydroxide and hydrogen ions. The magneto‐ionic effect results in a pronounced voltage‐controlled variation of coercivity in both devices. The switching speed is in the range of 100 ms.
Markus Gößler, Richard Weber, Michael Sommer, Karin Leistner   +3 more
wiley   +1 more source

Voltage Balancing of the DC-Link Capacitors in Three-Level T-Type Multiphase Inverters [PDF]

, 2022
This paper illustrates an algorithm to balance the voltages across the DC-link capacitors of a three-level multiphase inverter feeding a star-connected load with an odd number of phases.
Vancini L., Zarri L., Rizzoli G., Mengoni M., Tani A., Michele Mengoni, Gabriele Rizzoli, Luca Zarri, Luca Vancini, Angelo Tani   +9 more
core   +1 more source

Self‐Powered, Ultra‐Sensitive InGaAs/ITO Nanowire Radial Junction Infrared Photodiode for Low Flux Imaging at Room Temperature

Advanced Functional Materials, EarlyView.
This study reports a self‐powered InGaAs nanowire photodetector achieving single‐photon‐level sensitivity in the shortwave infrared at non‐cryogenic temperatures. The device demonstrates high‐speed imaging capabilities even under extremely low‐flux conditions.
Kosala Dhanawansha, Chaohao Chen, Zhe Li, Tuomas Haggren, Dawei Liu, Yang Yu, Baolei Liu, Sanjay Krishna, Hark H. Tan, Chennupati Jagadish, Lan Fu   +10 more
wiley   +1 more source