Projeto e implementação de um reator eletrônico auto-oscilante para a alimentação de lâmpadas fluorescentes

Abstract

This document presents an analysis and design of a self-oscillating electronic ballast for supply of fluorescent lamps. The ballast developed consists in a half-bridge inverter allied with a resonant filter for an ignition of a 15W fluorescent lamp. For supply, was used the line voltage processed by a full-bridge rectifier with capacitive filter. The self-oscillating command circuit made the commutation of the switches. This paper also presents a study in the bibliography of existents methodologies for the project of the resonant filter and the self-oscillating command. Simulation results confirm the operation of the designed self-oscillating electronic ballast. Based on this simulation, a prototype was built.