What is it about?
DC power is easy to measure. The losses of SiC transistors are measured by the temperature drop in a thermal link. The difference is the loss in a magnetic component as a load in the set-up.
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Why is it important?
The losses in today inductors are low. Classic watt-meter set-ups are sensitive to the exact phase, and edges in the waveform. I give an example, at 100 kHz, the period is 10µs, one radian is 1.58µs, at 1% loss, the phase difference is 15.8 ns. To get 5% accuracy, a precision of less than 0.8ns would be needed.
Perspectives
Before that, already other calorimetric papers were published by the authors, so it is following the evolution in possibilities.
Alex Van den Bossche
Ghent University EELAB
Read the Original
This page is a summary of: High frequency power loss measurement platform, International Journal of Electronics Letters, November 2018, Taylor & Francis,
DOI: 10.1080/21681724.2018.1545923.
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