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 un Conmutador (Single-Switch Flyback Converter) e Implementación de su Etapa AC-DC.

Abstract

This article is about the design of a Switching Power Supply of two stages: AC-DC with a Boost type converter with a Power Factor Correction and a DC-DC converter Flyback type and implementation of its AC-DC stage. For the design, the basic topology of the Boost converter and the Flyback converter were used, in which the elements of power were dimensioned based on the specifications of current and voltage. For the same manner, the parameters for identifying systems were used and the design of the controllers. The results obtained were consistent with the values calculated theoretically, and based on a simulation in Simulink these values were found. In the implementation of the AC-DC stage, the responses of the controllers were achieved according to what was set in the design whereby an output voltage able to follow the reference with a minimal error was obtained. Finally was designed a Switching Power Supply capable of delivering a capacity between 30 and 120 watts, witch a maximum current of 5 amps design.