Results 51 to 60 of about 48,317 (290)

Review of Three-Phase Soft Switching Inverters and Challenges for Motor Drives

CES Transactions on Electrical Machines and Systems
For electric vehicles (EVs), it is necessary to improve endurance mileage by improving the efficiency. There exists a trend towards increasing the system voltage and switching frequency, contributing to improve charging speed and power density.
Haifeng Lu, Qiao Wang, Jianyun Chai, Yongdong Li   +3 more
doaj   +1 more source

Comprehensive steady state analysis of bidirectional dual active bridge DC/DC converter using triple phase shift control [PDF]

, 2014
Several papers have been published recently on TPS control of dual active bridge (DAB) converter, however, no complete study of the converter operation behaviour exists, that takes into account all switching modes in both charging and discharging ...
Aboushady, A.A., Adam, G.P., Ahmed, K.H., Harrye, Yasen A.   +3 more
core   +3 more sources

Real‐World Performance of CSF Kappa Free Light Chains in the 2024 McDonald Criteria

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Kappa free light chains (KFLCs) in the cerebrospinal fluid (CSF) have a similar performance to CSF‐restricted oligoclonal bands (OCB) for multiple sclerosis (MS) diagnosis. To help with implementation, we set out to resolve several remaining uncertainties: (1) performance in a real‐world cohort and the 2024 McDonald criteria; (2 ...
Maya M. Leibowitz, Ryan Cooper, Stefania Kaninia, Kathryn I. Challis, Will Greenway, Maria Bonello, Mahmoud Elbahnasawi, Deborah T. Shode, Dominika Gajdasik, Victor Iliev, Alison M. E. Whitelegg, Ian Galea   +11 more
wiley   +1 more source

A Fully Soft Switched Two Quadrant Bidirectional Soft Switching Converter for Ultra Capacitor Interface Circuits [PDF]

Journal of Power Electronics, 2011
This paper describes a two quadrant bidirectional soft switching converter for ultra capacitor interface circuits. The total efficiency of the energy storage system in terms of size and cost can be increased by a combination of batteries and ultra capacitors.
Mirzaei, Amin, Farzanehfard, Hosein, Adib, Ehsan, Jusoh, Awang, Salam, Zainal   +4 more
openaire   +2 more sources

Analysis of the influence of switching related parameters in the dab converter under soft-switching [PDF]

, 2013
An analysis of a dual active bridge (DAB) converter under soft-switching mode in the whole operating range is presented in this paper. A detailed study of the impact ofthe transformer magnetizing inductance, LM,and snubber capacitance, Cxx, parameters on
García, Guillermo, Oggier, German Gustavo, Oliva, Alejandro Raul   +2 more
core  

Hybrid fuzzy and sliding-mode control for motorised tether spin-up when coupled with axial vibration [PDF]

, 2009
A hybrid fuzzy sliding mode controller is applied to the control of motorised tether spin-up coupled with an axial oscillation phenomenon. A six degree of freedom dynamic model of a motorised momentum exchange tether is used as a basis for interplanetary
Brian O'Dell, Cartmell M P, Chen Y, Chen Y, Emelyanov S V, Itkis Y, John Y Hung, Kevin M Passino, M P Cartmell, Ng K C, Slotine J J E, Slotine J J E, Utkin V A, Y Chen   +13 more
core   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

A soft switching non‐isolated bidirectional DC–DC converter with improved voltage conversion ratio and minimum number of switches

IET Renewable Power Generation
A soft switching non‐isolated bidirectional DC–DC converter with an improved voltage conversion ratio without any additional auxiliary switch is presented in this paper. In the proposed converter, improved step‐up/step‐down gain conversion is achieved by
Nasrin Asadi Madiseh, Ehsan Adib
doaj   +1 more source

A novel zero-current soft-switching converter for switched reluctance motor drives [PDF]

, 1998
A new zero-current-transition (ZCT) power converter for switched reluctance motor drive applications is presented. The proposed ZCT power converter possesses the definite advantages that both the main and auxiliary switches are operating with zero ...
Chan, CC, Chan, MSW, Chau, KT, Ching, TW
core   +1 more source

Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding

Advanced Engineering Materials, EarlyView.
This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou, Mohammed Benwadih, Arnaud Gabas, Lina Kadura, Minh‐Quyen Le, Daniel Grinberg, Pierre‐Jean Cottinet   +6 more
wiley   +1 more source