Results 11 to 20 of about 79,349 (289)

Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant Converter

Energies
To enhance the power density of LLC resonant converters, multilayer planar inductors are required. However, multilayer planar inductors have high parasitic capacitance, which may cause inductor current ringing in LLC resonant converters, leading to EMI ...
Qichen Liu, Zhengquan Zhang
doaj   +2 more sources

Passive Metasurface Tweezers for Multi-Scale Orbital Transport and Trapping on Elastic Plates. [PDF]

Adv Sci (Weinh)
Passive labyrinthine phase encoding converts single‐channel excitation into localized flexural‐wave vortices with programmable orbital angular momentum. The resulting vortex fields enable cross‐scale particle manipulation, including orbital transport, central confinement, and rotational actuation.
Bi Z, Li Z, Ren Y, Peng Y, Zhu X, Zhao L, Yang J, Bi C.   +7 more
europepmc   +2 more sources

Analytical Model for HF-Losses Caused by 2D Magnetic Fields in Litz Wire

IEEE Open Journal of Power Electronics, 2023
The 2D magnetic field effect arises when the winding height is lower than the window height due to isolation requirements and mechanical constraints. In this situation, most analytical models for calculating HF-losses in Litz wire fail to predict the ...
Qingchao Meng, Jurgen Biela
doaj   +1 more source

Space-Time Block Coded and IQ-interleaved TCM, TTCM, BICM and BICM-ID Assisted OFDM [PDF]

, 2003
Space-Time Block Coded (STBC) In-phase Quadrature-phase (IQ)-interleaved Coded Modulation (CM) schemes are proposed for Orthogonal Frequency Division Multiplexing (OFDM).
Ng, S.X., Liew, T.H., S.X. Ng, L. Hanzo, Hanzo, L., T.H. Liew   +5 more
core   +2 more sources

Detection of Winding Axial Displacement of a Real Transformer by Frequency Response Analysis without Fingerprint Data

Energies, 2021
Detection of the axial displacement of power-transformer winding is important to ensure its highly reliable operation. Frequency response analysis is a promising candidate in detecting the axial displacement.
Satoru Miyazaki
doaj   +1 more source

An Interleaved High Step-Up DC-DC Converter Based on Integration of Coupled Inductor and Built-in-Transformer With Switched-Capacitor Cells for Renewable Energy Applications

IEEE Access, 2022
This paper proposes an interleaved high step-up DC-DC converter with the coupled inductor (CI) and built-in transformer (BIT) for renewable energy applications.
Ramin Rahimi, Saeed Habibi, Mehdi Ferdowsi, Pourya Shamsi   +3 more
doaj   +1 more source

Transformer winding type recognition based on FRA data and a support vector machine model

High Voltage, 2020
Frequency response analysis (FRA) is regarded as the most effective technique to detect mechanical faults of transformers. Over the years, FRA measurement data have been collected by utilities into transformer asset databases.
Xiaozhou Mao, Zhongdong Wang, Peter Crossley, Paul Jarman, Andrew Fieldsend-Roxborough, Gordon Wilson   +5 more
doaj   +1 more source

Different Virtual Stator Winding Configurations of Open-End Winding Five-Phase PM Machines for Wide Speed Range without Flux Weakening Operation [PDF]

, 2013
This paper presents a specific control strategy of double-ended inverter system for wide-speed range of open-winding five phase PM machines. Different virtual winding configurations (star, pentagon, pentacle and bipolar) can be obtained by choosing the ...
NGUYEN, Ngac Ky, B. Aslan, Nguyen, N.K, ASLAN, Bassel, SANDULESCU, Paul, MEINGUET, Fabien, N. K. Nguyen, E. Semail, KESTELYN, Xavier, F. Meinguet, P. Sandulescu, SEMAIL, Eric, X. Kestelyn   +12 more
core   +1 more source

Electric Field Simulations and Analysis for High Voltage High Power Medium Frequency Transformer

Energies, 2017
The electronic power transformer (EPT) raises concerns for its notable size and volume reduction compared with traditional line frequency transformers.
Pei Huang, Chengxiong Mao, Dan Wang
doaj   +1 more source

Design Optimization Methodology for Planar Transformers for More Electric Aircraft

IEEE Open Journal of the Industrial Electronics Society, 2021
Isolated DC-DC converters are considered the building blocks of modern aircraft electrical power networks. The high-frequency transformer utilized in such converters is the major contributor to the size and weight besides the thermal management system ...
Mohamed I. Hassan, Niloufar Keshmiri, Alan Dorneles Callegaro, Mario F. Cruz, Mehdi Narimani, Ali Emadi   +5 more
doaj   +1 more source