Title :
A Practical Transformer Core Loss Measurement Scheme for High-Frequency Power Converter
Author :
Han, Yongtao ; Liu, Yan-Fei
Author_Institution :
Jabil Circuit Inc., Shanghai
Abstract :
A practical method to measure transformer core loss in a high-frequency switching mode power converter is proposed. The method is also applicable when the transformer has dc bias in the magnetizing current. Practical issues to minimize the measurement error are discussed. The measurement results are very close to simulation results obtained from a time-domain finite element analysis solver. Detailed error analysis for the proposed method provides useful guidelines on transformer core loss measurement for switching mode power supplies.
Keywords :
error analysis; finite element analysis; loss measurement; switching convertors; time-domain analysis; transformer cores; error analysis; high-frequency switching mode power converter; magnetizing current; switched mode power supply; time-domain finite element analysis; transformer core loss measurement; Analytical models; Error analysis; Finite element methods; Loss measurement; Magnetic analysis; Measurement errors; Power measurement; Switching converters; Time domain analysis; Transformer cores; Core loss; finite element analysis (FEA); pulsewidth modulation (PWM); switching mode power supply (SMPS);
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2007.896154