Conversor DC-DC
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2025
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Abstract
El presente Trabajo de Fin de Grado se centra en el diseño detallado de un conversor boost con control en modo de corriente, cuyo objetivo es el de proporcionar una tensión de salida constante independiente de las posibles variaciones en la tensión de entrada, utilizando un circuito integrado de control de anchura de pulsos. Para ello se realizará un estudio teórico del funcionamiento del conversor, detallando su modelado y los principios del control en modo de corriente. Además, se llevará a cabo su simulación en el programa Pspice, atendiendo a los efectos reales de los componentes, como la resistencia en serie de las inductancias y los condensadores y las limitaciones del controlador utilizado. Finalmente se procederá con el montaje del conversor en el laboratorio, evaluando así su comportamiento experimental, y comparándolo con los resultados obtenidos.
The present Final Degree Project focuses on the detailed design of a boost converter with current mode control, whose objective is to provide a constant output voltage regardless of possible variations in the input voltage, using the UC3843 integrated circuit. To this end, a theoretical study of the converter’s operation will be carried out, detailing its modeling and the principles of current mode control. Additionally, its simulation will be conducted in the PSpice program, taking into account the real effects of the components, such as the series resistance of the inductors and capacitors, as well as the limitations of the controller used. Finally, the converter will be assembled in the laboratory to evaluate its experimental performance and compare it with the obtained results.
The present Final Degree Project focuses on the detailed design of a boost converter with current mode control, whose objective is to provide a constant output voltage regardless of possible variations in the input voltage, using the UC3843 integrated circuit. To this end, a theoretical study of the converter’s operation will be carried out, detailing its modeling and the principles of current mode control. Additionally, its simulation will be conducted in the PSpice program, taking into account the real effects of the components, such as the series resistance of the inductors and capacitors, as well as the limitations of the controller used. Finally, the converter will be assembled in the laboratory to evaluate its experimental performance and compare it with the obtained results.












