Results 1 to 10 of about 766,392 (293)

Flicker-Free LED Driver Based on Cuk Converter with Integrated Magnetics

open access: yesWorld Electric Vehicle Journal, 2023
Electric vehicles contain various types of light emitting diode (LED) devices. A significant twice-line-frequency ripple current is usually produced in a conventional offline LED driver with a high power factor.
Yanxia Shen, Jintao Xia, Chengchao Cai
doaj   +1 more source

An Improved IPOS LLC Resonant Converter With Sub-Module Output Voltage Sharing in Low Ripple High-Voltage Applications

open access: yesIEEE Access, 2023
This paper proposed an input-parallel and output-series (IPOS) LLC resonant converter for applications with high voltage gain and low ripple, which considers the sharing of submodule output voltages.
Zhijian Liu   +4 more
doaj   +1 more source

A Three-Port Power Electronic Transformer Based on Magnetic Integration

open access: yesApplied Sciences, 2022
This paper proposes a three-port power electronic transformer (PET) based on magnetic integration, where the modular multilevel converter (MMC) arm inductors and high-frequency transformer are integrated; thus, the low-voltage DC (LVDC) port can be ...
Zhixian Liao   +6 more
doaj   +1 more source

Magnetic Integration of Circular Pads and LCC-LCC for EV Wireless Charging Tolerant to Misalignment

open access: yesIEEE Access, 2023
A key component of the magnetic resonant chargers is the coupler, which must be connected to the compensation networks to improve the power transfer. The design of both structures are tightly related since the configuration of one affects the other. Thus,
Juan C. Quiros   +3 more
doaj   +1 more source

Integrated Magnetics Design for a Full-Bridge Phase-Shifted Converter

open access: yesEnergies, 2020
In this study, an optimization procedure was proposed for the magnetic component of an integrated transformer applied in a center-tap phase-shifted full-bridge converter.
Yu-Chen Liu   +4 more
doaj   +1 more source

A Magnetic Integration Half-Turn Planar Transformer and its Analysis for LLC Resonant DC-DC Converters

open access: yesIEEE Access, 2019
A high frequency planar transformer with integrated leakage inductance and half-turn secondary windings is proposed for LLC isolated DC-DC converters. The primary windings are wound on both the center leg and the sides leg of an EI planar ferrite core to
Siqi Li   +5 more
doaj   +1 more source

Personalized neurorehabilitative precision medicine: from data to therapies (MWKNeuroReha) – a multi-centre prospective observational clinical trial to predict long-term outcome of patients with acute motor stroke

open access: yesBMC Neurology, 2022
Background Stroke is one of the most frequent diseases, and half of the stroke survivors are left with permanent impairment. Prediction of individual outcome is still difficult. Many but not all patients with stroke improve by approximately 1.7 times the
Corinna Blum   +16 more
doaj   +1 more source

Accurate calculation of the solutions to the Thomas-Fermi equations [PDF]

open access: yes, 2014
We obtain highly accurate solutions to the Thomas-Fermi equations for atoms and atoms in very strong magnetic fields. We apply the Pad\'e-Hankel method, numerical integration, power series with Pad\'e and Hermite-Pad\'e approximants and Chebyshev ...
Amore, Paolo   +2 more
core   +4 more sources

The Dirac equation in an external electromagnetic field: symmetry algebra and exact integration [PDF]

open access: yes, 2015
Integration of the Dirac equation with an external electromagnetic field is explored in the framework of the method of separation of variables and of the method of noncommutative integration. We have found a new type of solutions that are not obtained by
Breev, A. I., Shapovalov, A. V.
core   +3 more sources

Magnetic Polymers for Magnetophoretic Separation in Microfluidic Devices

open access: yesMagnetochemistry, 2021
Magnetophoresis offers many advantages for manipulating magnetic targets in microsystems. The integration of micro-flux concentrators and micro-magnets allows achieving large field gradients and therefore large reachable magnetic forces.
Lucie Descamps   +3 more
doaj   +1 more source

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