Publication: Sistema de iluminación basado en LED de alto brillo con control digital
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2013-06
Defense date
2013-07-08
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Abstract
El presente proyecto consiste en la realización del diseño eléctrico y físico de un
sistema de iluminación basado en LED de alto brillo con control digital.
Se presentarán diferentes tipos de etapas de potencia para la alimentación de las
cuales se hará un detallado análisis. Los convertidores de potencia propuestos son el
elevador, el reductor síncrono y elevador con corrector del factor de potencia. Para el
control de las etapas se hará uso de los controladores UC3854 y UC3823.
Se diseñará un circuito con interruptores Mosfet para conectar y desconectar las
cargas modulares de LEDs que estará gobernado por una FPGA. La señales de control de la
FPGA serán adaptados a los niveles de tensión adecuados para comunicarse con los drivers
que dispararán los Mosfet.
Por último se comprobará el correcto funcionamiento de las soluciones propuestas y
se compararán los resultados entre ellas.
This Project consists of performing the electrical and physical design of a lighting system based on High Brightness Light-Emitting Diode with digital control. Different power stages will be introduced as supply power which will be analysed. The proposed power stages are boost converter, synchronous buck converter and boost converter with power factor correction. UC3854 and UC3823 IC controllers will be used to control the power stages. A circuit driven by a FPGA will be designed to connect and disconnect LED modular loads with Mosfet transistors. The control signals from the FPGA will be adapted to the correct voltage level to communicate with Mosfet transistor drivers. Ultimately, the proper operating of each proposed solution will be verified and the results will be compared.
This Project consists of performing the electrical and physical design of a lighting system based on High Brightness Light-Emitting Diode with digital control. Different power stages will be introduced as supply power which will be analysed. The proposed power stages are boost converter, synchronous buck converter and boost converter with power factor correction. UC3854 and UC3823 IC controllers will be used to control the power stages. A circuit driven by a FPGA will be designed to connect and disconnect LED modular loads with Mosfet transistors. The control signals from the FPGA will be adapted to the correct voltage level to communicate with Mosfet transistor drivers. Ultimately, the proper operating of each proposed solution will be verified and the results will be compared.
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Keywords
Tecnología LED, Iluminación LED, Control digital, Electrónica de potencia, Convertidores de potencia