Journal ArticleDOI
Soft FerritesߞProperties and Applications
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In this paper, the authors discuss the properties and applications of soft and hard ferrites and their applications in search-works, including the application of soft ferrite material from emc to rfid.Abstract:
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Citations
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Modeling and Design Method of Coupled Inductor Using Powder Core with Concentrated Air Gap
TL;DR: In this article , a high-precision magnetic circuit model for powder core in coupled inductors is proposed, considering soft saturation and flux cancellation, which can be utilized even with large air gap, and simplifies the magnetic design.
Journal ArticleDOI
Non-Linear Material Model of Ferrite to Calculate Core Losses With Full Frequency and Excitation Scaling
T. Dimier,Jurgen Biela +1 more
TL;DR: In this article , a material model for ferrite is presented, enabling an accurate calculation of the core losses from 100 to 1000 kHz with a single set of scalar parameters over a decade of excitation current.
Proceedings Article
Magnetic Core Evaluation Kit for the Comparison of Core Losses
TL;DR: In this paper , a comparison of measurement, analytical, and numerical methods for core losses is conducted within an initiative of different scientific and industrial partners, a core evaluation kit was developed and used in different parts of the world to evaluate the effects of size, shapes, and measurement practices on the core loss models that we use for power conversions systems.
Book ChapterDOI
Microstructural and magnetic properties of transition and rare-earth metals-substituted cobalt nanoferrites
TL;DR: In this paper , the morphological, magnetic, and dielectric properties of cobalt nanoferrites have been studied for applications in various fields due to their amazing properties: high saturation magnetization, intense electrical resistivity, excellent thermal stability, chemical inertness, higher mechanical hardness, and high Curie temperature.
Macromagnetic Approach to the Modeling in Time Domain of Magnetic Losses of Ring Cores of Soft Ferrites in Power Electronics
TL;DR: In this paper , the authors present a new modeling approach capable of predicting Eddy current losses in soft ferrite cores as a function of the winding current, which defines the magnetic core as a repeated regular structure of magnetic material grains and grain boundary in space.
References
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Journal ArticleDOI
Computationally efficient winding loss calculation with multiple windings, arbitrary waveforms, and two-dimensional or three-dimensional field geometry
TL;DR: The squared-field-derivative method for calculating eddy-current (proximity effect) losses in round-wire or litz-wire transformer and inductor windings is derived in this paper.
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Cost-constrained selection of strand diameter and number in a litz-wire transformer winding
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Journal ArticleDOI
Experimental determination of stray capacitances in high frequency transformers
TL;DR: In this paper, the two-port network approach and the step-response approach are used for determining stray capacitances in a two-winding high frequency transformer for circuit simulation and computeraided design purposes.
Journal ArticleDOI
Measurements and performance factor comparisons of magnetic materials at high frequency
TL;DR: In this paper, the design of power magnetic components for operation at high frequency (HF, 3-30 MHz) has been hindered by a lack of magnetic material performance data and by the limited design theory in that frequency range.
Proceedings ArticleDOI
Core losses under DC bias condition based on Steinmetz parameters
TL;DR: In this paper, the Steinmetz premagnetization graph (SPG) is introduced to calculate core losses under DC bias conditions, and a detailed description of the test system is given, as high accuracy is crucial.