Benhadda, YaminaDerkaoui, MokhtariaMendaz, KheiraKharbouch, Hayet2025-04-212025-04-212021http://dspace.univ-oeb.dz:4000/handle/123456789/21985The integration of electrical components has been the subject of many researches. In this paper, we design and analyze a monolithic square spiral planar microtransformer integrated in a converter Flyback. Firstly, the geometrical and electrical parameters are presented. Secondly, the efficiency of Flyback is calculated to verify the performance of the converter. The final part of this paper shows the thermal modeling, using the finite element method that allowed us to determine the operating temperature in the materials of this component.enMonolithic square spiral planar micro-transformer; Converter flyback, thermalArticle