An automated measurement system for core loss characterization

Author

Batista, Adalberto J. ; Fagundes, Jo Ao Carlos S ; Viarouge, Philippe

Author_Institution

Escola de Engenharia Eletrica, Univ. Fed. de Goias, Brazil

Volume

48

Issue

2

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

663

Lastpage

667

Abstract

This paper describes an automated measurement system for core loss characterization. This system can accomplish these aims, within specified magnetic induction and frequency ranges, and at different temperatures, with high accuracy, due to the techniques used in the acquisition and computation of the waveforms involved in loss calculation. The core loss characterization, obtained by fitting the core loss density (per unit volume) versus frequency and magnetic induction, permits the use of an equation, which is a very useful tool for the design optimization of high frequency magnetic components, such as transformers and inductors for switched mode power supplies

Keywords

curve fitting; electromagnetic induction; loss measurement; magnetic hysteresis; magnetic variables measurement; transformer cores; virtual instrumentation; automated measurement system; core loss characterization; core loss density; design optimization; ferrite cores; frequency dependence; high accuracy; high frequency magnetic components; inductors; magnetic induction; power amplifier; sine wave excitation; software package; square wave excitation; switched mode power supplies; transformer cores; transformers; virtual instrument concept; Circuits; Core loss; Frequency; Inductors; Loss measurement; Power amplifiers; Switched-mode power supply; Toroidal magnetic fields; Transformers; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.769682

Filename

769682