A Practical Transformer Core Loss Measurement Scheme for High-Frequency Power Converter

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...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2008-02, Vol.55 (2), p.941-948
Main Authors: Han, Yongtao, Liu, Yan-Fei
Format: Article
Language:English
Subjects:
Analytical models
Core loss
Error analysis
finite element analysis (FEA)
Finite element methods
Guidelines
Loss measurement
Magnetic analysis
Mathematical analysis
Measurement errors
Power converters
Power measurement
pulsewidth modulation (PWM)
Solvers
Switching
Switching converters
switching mode power supply (SMPS)
Time domain analysis
Transformer cores
Transformers
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Summary: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.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2007.896154