DISEÑO DE UNA FUENTE DE ALIMENTACIÓN DE DOS ETAPAS: AC-DC CON CORRECCIÓN DE FACTOR DE POTENCIA Y DC-DC CON UN CONVERTIDOR DE RETROCESO DE DOS CONMUTADORES (TWO-SWITCH FLYBACK CONVERTER) E IMPLEMENTACIÓN DE SU ETAPA AC-DC

Abstract

In this project a process of analysis and design of a switching power supply is treated. First, a focus is on the proposal made for the preparation of this document and then presents issues comprehensively to develop. In the next chapter the classification of switching power supplies and an analysis of his art today is presented, then, theoretical foundations and considerations are introduced to take into account possible understanding and de sign of both stages proposed. Design parameters of the power circuits is then established; the calculations required for the development of both open loop converters and selecting each of its components to be used is performed. Once designed the power circuit, the elements that compose the controllers that keep the system stable are calculated for the two stages and complete circuit containing the two converters connected in cascade is simulated. Finally, the analysis of the results is done by simulation and the implementation of the AC-DC stage where the integrated circuit UCC28019 is used to govern the control circuit.