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Thermal Characterization of High-Frequency Flyback Power Transformer

Kasikowski R., Gołaszewski J., Więcek B., Farrer M.

Measurement Automation Monitoring

2015

Vol. 61, No. 6

237--241

This paper presents preliminary thermographic measurements and a simple thermal analysis of power losses in high-frequency (H-F) transformers used in AC-DC power converters. The analysis is based on complex thermal impedance and time constant distribution. The main aim of this research was to consider quantitatively the contribution of different power losses in the H-F transformer, including fringing flux effect.