Novas topologias, análises, projeto e experimentação de fontes de alta freqüência para lâmpadas fluorescentes tubulares

Abstract

This work consists of a study of New Topologies, Analyses, Design and Experimentation of High-Frequency Power Sources for Fluorescents Lamps. These structures are designed to get high power factor, low THD and long lamp lifetime. It were implemented four topologies, A High Power Factor Electronic Ballast Employing a Forward Topology, A High Power Factor Electronic Ballast Employing a Quadratic Forward Topology, A High Power Factor Electronic Ballast Employing a Boost Half Bridge Topology and An Improved High Power Factor Electronic Ballast with a Single Switch. All structures were analyzed, simulated and implemented in laboratory and the obtained results were satisfactory.