Results 11 to 20 of about 636,733 (264)

Variation of Core Loss in High-Frequency Transformers Under Different Load Conditions

IEEE Open Journal of the Industrial Electronics Society, 2023
Typically, the core loss of transformers is considered constant, regardless of the load conditions on the secondary side. However, this assumption is no longer valid for high-frequency transformers (HFTs).
Navid Rasekh, Jun Wang, Xibo Yuan
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Excellent, Lightweight and Flexible Electromagnetic Interference Shielding Nanocomposites Based on Polypropylene with MnFe₂O₄ Spinel Ferrite Nanoparticles and Reduced Graphene Oxide

Nanomaterials, 2020
In this work, various tunable sized spinel ferrite MnFe2O4 nanoparticles (namely MF20, MF40, MF60 and MF80) with reduced graphene oxide (RGO) were embedded in a polypropylene (PP) matrix.
Raghvendra Singh Yadav, Anju, Thaiskang Jamatia, Ivo Kuřitka, Jarmila Vilčáková, David Škoda, Pavel Urbánek, Michal Machovský, Milan Masař, Michal Urbánek, Lukas Kalina, Jaromir Havlica   +11 more
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Loss Mitigation in Self-Biased Microstrip Circulators

Magnetism, 2023
Integration of the ferrite devices in the RF front-end and active antennas is hindered by the need for external magnets, biasing soft microwave ferrites.
Lingqi Kong, Alexander Schuchinsky, Sumin Joseph, Taylan Eker, Yi Huang   +4 more
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Enhanced electromagnetic wave absorption property of binary ZnO/NiCo2O4 composites

Journal of Advanced Ceramics, 2021
Nowadays, metal oxide-based electromagnetic wave absorbing materials have aroused widely attentions in the application of telecommunication and electronics due to their selectable mechanical and outstanding dielectric properties.
Bin Du, Mei Cai, Xuan Wang, Junjie Qian, Chao He, Anze Shui   +5 more
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Improved magnetic loss for TLM [PDF]

Electronics Letters, 1993
A new way of modelling magnetic losses which closely approximates the behaviour of real ferrite materials using the transmission line matrix (TLM) method is described. Numerical results are presented which demonstrate the accuracy possible with this method.
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Sensorless PMSM Drive Implementation by Introduction of Maximum Efficiency Characteristics in Reference Current Generation

Energies, 2019
This paper presents the efficiency improvement in a speed closed-loop controlled permanent magnet synchronous machine (PMSM) sensorless drive. The drive efficiency can be improved by minimizing the inverter and the PMSM losses. These can be influenced by
Željko Plantić, Tine Marčič, Miloš Beković, Gorazd Štumberger   +3 more
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Loss Analysis of Magnetic Gear with Slotted in Magnetic Modulation Ring

CES Transactions on Electrical Machines and Systems, 2023
In order to improve the operation efficiency of coaxial magnetic gear (CMG), in this paper, a CMG model with slotted in magnetic modulation ring is proposed.
Can Tan, Wei Liu, Yingying Rao, Weizhao Tang, Libing Jing   +4 more
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Magnetization losses in multifilament coated superconductors [PDF]

Applied Physics Letters, 2005
We report the results of a study of the magnetization losses in experimental multifilament, as well as control (uniform) coated superconductors exposed to time-varying magnetic fields of various frequencies. Both the hysteresis loss, proportional to the sweep rate of the applied magnetic field, and the coupling loss, proportional to the square of the ...
Levin, G. A., Barnes, P. N., Amemiya, N., Kasai, S., Yoda, K., Jiang, Z.   +5 more
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Fabrication and Properties of Iron-based Soft Magnetic Composites Coated with NiZnFe₂O₄

Cailiao gongcheng, 2017
This paper focuses on iron-based soft magnetic composites which were synthesized by utilizing the sol-gel method prepared Ni-Zn ferrite particles as insulating compound to coat iron powder, and the influence of NiZnFe2O4 content and molding pressure on ...
WU Shen, FAN Jiang-lei, LIU Jian-xiu, GAO Hong-xia, SUN Ai-zhi   +4 more
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Dielectric response of ANb2O6 (A = Zn, Co, Mn, Ni) columbite niobates: From microwave to terahertz

Journal of Advanced Ceramics
In the upcoming 6-generation (6G) revolution, the achievement of low power consumption has become a key objective in research concerning terahertz devices.
Weijia Luo, Shun Wang, Siyong Zheng, Jining Li, Menglong Wang, Yongzheng Wen, Lingxia Li, Ji Zhou   +7 more
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