Thermal Characterization of Electronic Power Component: a comparison between resistive and fiber Bragg grating sensors

The operating temperature can be critical in some electronic circuits to ensure the integrity and proper functioning of a circuit, especially in power electronics. A temperature mapping can then be useful to anticipate the malfunction. The objective of this paper is to set up methods to study the thermal behavior of power electronic components such as inductors and transformers. Two methods are compared: a first one based on resistive integrated sensors and a second one based on fiber Bragg grating sensors. The analysis of each method is divided into two parts: the calibration of the sensor and the validation of the procedure.