High Power Factor Electronic Ballast for High Pressure Sodium Lamps With Low Crest Factor

In this paper will be reported the study and implementation of a single stage High Power Factor (HPF) electronic ballast for High Pressure Sodium (HPS) lamps using a Half-Bridge Boost Rectifier integrated with an Electronic Ballast based in a LCC filter. In the recent years many authors are working to obtain single stage HPF electronic ballast for fluorescent lamps [1-3]. Normally to obtain HPF in electronic ballast for high pressure sodium lamps a Power Factor Preregulator (PFP) is used between the mains and the electronic ballast [3]. The main idea in this work is to present a simple and cheap electronic ballast with HPF for HPS lamps. This simple solution also presents low crest factor. Design criteria and experimental results will be also presented in the final version of this paper.