Title :
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
fDate :
4/1/1999 12:00:00 AM
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;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
