Modélisation électronique et électromagnétique d'un transformateur haute fréquence à circuit magnétique en fonte

TL;DRAbstract

This report begins by a digest concerning the représentation by équivalent circuits and the expérimental characterization of wound electronic components. Then, focus is on low power efliciency and/or weak coupling transformer : équivalent circuits and expérimental characterization are adapted to such components. As a second step, équivalent circuit of the component under test is experimentally established. Thanks to PSPICE software, the simuiated behavior of the electronic circuit in which this component is used, is compared to measurements. The benefit that results from the use of an appropriate model for each wound component is highlighted. Subsequently, we pay attention to the calculation of the transformer équivalent circuit éléments from technological data. First, focus is on stray capacitances. Thanks to both an analytical study and an electrostatic simulation, carried out with FLUX2D software, the way the winding mode influences stray capacitance values is carefully analyzed. Pr

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