Projeto e implementação de um circuito eletrônico para acionamento de leds em máquinas e implementos agrícolas

Abstract

The main objective os this present work, is the project and implementation of a LED driver for external illumination in the agricultural segment. The motivation for the use of LEDs as the light source, lies behind the pursuit of improved efficiency and better visual confort. In the first stage, a review of the bibliography of the electronics used in the project is made. With the desire that the LED driver has a performance related to the typical lifespan of the LEDs, some consideration for the electronic driver design were exposed. The feasible conetions that are possible with LED are shown, and power converter topologies were analised. The mathematical modelling of the power converter is made. Next is made the projetct of the power converter and auxiliary circuits. In the end the experimental results are shown and analized.