Theoretical and experimental analysis of a boost converter

Section  de la parution:  Informations de publication


J. P. Soaphys, Vol 2, N°2 (2020) C20A28; 25 Juin 2021

Pages :  C20A28-1  à C20A28-9

DOI du journal   :
DOI du Numéro :
DOI de l’article  :
Print ISSN: 2630-0958
Historique de la version : actuelle

Information sur les auteurs

Badiane Modou 1*

Honadia Prince Abdoul Aziz 2,

Barro Fabé Idrissa 3

1 Semiconductors and Solar Energy Laboratory, Department of Physics to the Faculty of Science and Technique, Cheikh Anta Diop University, Dakar, Senegal,
2 Thermal and Renewable Energies Laboratory, Department of Physics to Polytechnic University Center of kaya, Burkina Faso,
3 Semiconductors and Solar Energy Laboratory, Department of Physics to the Faculty of Science and Technique, Cheikh Anta Diop University, Dakar, Senegal,

*To whom correspondances should be addressed. E-mail:  *


A theoretical and experimental study of a conventional boost converter is presented. Based on the real behavior of the components, the conventional boost converter model dealing with both inductive and capacitive losses as well as switching losses is introduced. From this model, the detailed analytical expressions of the voltage gain factor and the conversion efficiency are established taking into account the losses due to parasitic resistances and switching losses. The behavior of the converter is then analyzed by simulating the voltage gain factor and the conversion efficiency as a function of the duty cycle. The converter prototype was manufactured and a set of experimental measurements was made; these measurements made it possible to demonstrate that the proposed theoretical models were reliable for a large range of duty cycle for the boost converter. 
Keywords : Duty cycle, gain factor, efficiency, ESR, power losses

Une étude théorique et expérimentale d’un convertisseur boost conventionnel est présentée. Sur la base du comportement réel des composants, le modèle de convertisseur élévateur traitant aussi bien des pertes inductives et capacitives que des pertes de commutation est introduit. À partir de ce modèle, les expressions analytiques détaillées du facteur de gain en tension et du rendement de conversion sont établies en tenant compte des pertes dues aux résistances parasites et aux pertes de commutation. Le comportement du convertisseur est ensuite analysé par simulation du facteur de gain en tension et du rendement de conversion en fonction du rapport cyclique. Le prototype du convertisseur a été mis en oeuvre et un ensemble de mesures expérimentales a été effectué ; ces mesures ont permis de démontrer que les modèles théoriques proposés étaient fiables pour une large gamme de rapport cyclique du convertisseur boost.
Mots-Clés : Rapport cyclique, gain en tension, rendement, ESR, pertes de puissance.


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