New Method to Characterize Magnetic Hysteresis in Soft Ferrites Up to High Frequencies

Tellini, Bernardo; Giannetti, R.; Robles, G.; Lizon-Martinez, S.

doi:10.1109/tim.2005.861494

Cited by 22 publications

(8 citation statements)

References 13 publications

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“…1. The resonant method was initially proposed by authors [5] to overcome the limitations of the classic or volt-amperometric (VA) method when increasing frequency in the measurement of major cycle hysteresis loops.…”

Section: Considerations On the Measurement Up To Medium Frequenciesmentioning

confidence: 99%

“…In previous papers, the authors discussed how it is possible to measure dynamic major loops up to medium frequencies by proposing a resonance condition-based measurement technique [5]. In this paper, the authors will try to describe in a more complete way the capabilities of the method; in particular, the possibility of measuring symmetric and non-symmetric loops under dynamic and also non periodic conditions is discussed.…”

Section: Introductionmentioning

confidence: 99%

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Measurement of Asymmetric Minor Loops in Soft Ferrites Up to Medium Frequencies

Lizon-Martinez

Tellini²,

Giannetti

et al. 2007

2007 IEEE Instrumentation &Amp; Measurement Technology Conference IMTC 2007

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An accurate measurement of the hysteresis cycle of magnetic cores is a crucial step in its characterization, due to its nonlinear and past-dependent effects over a design. These effects must be taken into account in order to satisfy the requirements of a power electronic design. In a previous paper; the authors proposed a method for measuring major loops ofhysteresis cycles up to mediumfrequencies given the limitation of the classic method when increasing frequency. In this paper; the capability of this method in measuring non-symmetric loops of the hysteresis cycle at medium frequencies is discussed. Simulated and experimental results are provided

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Section: Considerations On the Measurement Up To Medium Frequenciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Measurement of Asymmetric Minor Loops in Soft Ferrites Up to Medium Frequencies

Lizon-Martinez

Tellini²,

Giannetti

et al. 2007

2007 IEEE Instrumentation &Amp; Measurement Technology Conference IMTC 2007

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“…The first approach developed by authors is shown in Figure 1 (Robles and Giannetti, 2003;Tellini et al, 2006). It has three main parts: charge section, a LC tank and a switch.…”

Section: Designmentioning

confidence: 99%

“…The cost and the difficulty of operation of high frequency-high voltage generators, in particular, determine the overall complexity of the experimental set-up. The basic idea of the proposed method is to use resonant effects to generate high magnetic field up to medium frequencies with the aim to strongly reduce the complexity of the system (Robles and Giannetti, 2003;Tellini et al, 2006). As better explained in the next sections, the resonator system is obtained by means of a LC tank.…”

Section: Introductionmentioning

confidence: 99%

Improvements in a method to characterize soft ferrite up to high frequencies

Tellini

Giannetti²,

Martinez³

2006

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose-This paper aims to show a low-cost and easy to use measurement method for characterizing magnetic material B(H) relation up to medium frequencies providing an acceptable overall accuracy of the acquired data. Design/methodology/approach-Saturation fields at MHz frequencies are obtained through resonance effects of properly designed circuit. Simulations and measurements are presented and discussed. Findings-The paper shows the flexibility of the method and the possibility to use it for a complete characterization of the magnetic cores. Discussions and possible extension to rotating field measurements are reported. Originality/value-The paper provides information on a low-cost and easy to use measurement method to characterize magnetic hysteretic materials.

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“…Other important parameters such as retentivity, coercive force, saturation flux density, maximum field intensity, etc. can also be obtained from the hysteresis loop [3][4][5]. Various experimental methods have been reported to obtain magnetic hysteresis loop measurements [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A PC based hysteresis loop extractor and its applications

Shenil¹,

George

2013

2013 3rd International Conference on Instrumentation Control and Automation (ICA)

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A new, simple and low cost Virtual Instrument (VI) that performs automated extraction of hysteresis loop parameters is presented in this paper. The VI traces the magnetic hysteresis loop of test samples accurately. In conventional loop tracers the area of the loop and iron loss per cycle are computed manually. It is a time consuming process and accuracy is usually low. A new, simple method for automated computation of total area of the loop, retentivity and coercive force using a new VI is presented. Moreover, using the developed instrument, a new single frequency method for separation of iron losses is also presented. A prototype of the loop tracer and VI have been developed and tested. Results were compared with conventional method and found to be accurate. A Mu-metal toroid type core sample was used for the tests. The loop extractor developed has shown to be useful in material testing, selection of material for electromagnetic relays and separation of iron losses by single frequency excitation.

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New Method to Characterize Magnetic Hysteresis in Soft Ferrites Up to High Frequencies

Cited by 22 publications

References 13 publications

Measurement of Asymmetric Minor Loops in Soft Ferrites Up to Medium Frequencies

Measurement of Asymmetric Minor Loops in Soft Ferrites Up to Medium Frequencies

Improvements in a method to characterize soft ferrite up to high frequencies

A PC based hysteresis loop extractor and its applications

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