TY - JOUR N2 - This paper presents the implementation of a thermal camera for the quantitative estimation of power losses in a high frequency planar transformer (100 kHz/ 5600 VA). The methodology is based on the observation of the transient temperature rise and determination of the power losses by means of curves representing the derivative of temperature as a function of power losses dissipated in the transformer. First, the thermal calibration characteristics had to be obtained from a simple experiment, where power losses are generated by DC current in the ferrite core and windings. Next, experimental investigations focused on the determination of the transformer power losses for a short circuit and no load, with a resistive load and with the rectifier as a load were carried out. Finally, to verify the obtained results, analytical calculations based on Dowell’s and modified Steinmetz’s equations were additionally made, which showed a good convergence. The proposed method is easy to implement and can be used as an alternative to the calorimetric method which is time-consuming and requires a complicated measurement setup. L1 - http://www.czasopisma.pan.pl/Content/102163/PDF/DOI%2010.1515aee-2016-0044.pdf L2 - http://www.czasopisma.pan.pl/Content/102163 PY - 2016 IS - No 3 September EP - 627 DO - 10.1515/aee-2016-0044 KW - power losses estimation KW - thermal camera KW - thermal calibration KW - planar transformer KW - Dowell’s and Steinmetz’s equations A1 - Barlik, Roman A1 - Nowak, Mieczysław A1 - Grzejszczak, Piotr A1 - Zdanowski, Mariusz PB - Polish Academy of Sciences VL - vol. 65 DA - 2016 T1 - Estimation of power losses in a high-frequency planar transformer using a thermal camera SP - 613 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/102163 T2 - Archives of Electrical Engineering ER -