NDLI: HF Characterization and Non-Linear Modeling of a Gapped Toroidal Magnetic Structure

Content Provider	IEEE Xplore Digital Library
Author	Dalessandro, L. Odendaal, W.G. Kolar, J.W.
Copyright Year	2005
Description	Author affiliation: Power Electron. Syst. Lab., Swiss Fed. Inst. of Technol., Zurich (Dalessandro, L.)
Abstract	The frequency dependent characteristics of a gapped toroidal structure are extracted empirically over a bandwidth that exceeds 30 MHz. The analysis is complicated due to non-linear flux distributions, magnetic properties of the core material, leakage inductance, stray capacitances and eddy currents in the windings. A permeance model of the core is implemented to model the magnetic circuit. The model includes a linear lumped element equivalent circuit to approximate the non-linear complex permeability of the core, which was measured empirically. Stray capacitance and inductance of the winding are also modeled. A gyrator is used to couple the electric and magnetic models for circuit simulation. The measured and simulated results of open-circuit impedance from the secondary winding and the transimpedance gain (V/A) of the current sensor are compared and discussed
Starting Page	1520
Ending Page	1527
File Size	934483
Page Count	8
File Format	PDF
ISBN	0780390334
DOI	10.1109/PESC.2005.1581832
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-16
Publisher Place	Brazil
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hafnium Toroidal magnetic fields Magnetic cores Magnetic flux Magnetic materials Inductance Capacitance Circuit simulation Frequency dependence Bandwidth
Content Type	Text
Resource Type	Article

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