Full Bridge Single Stage Electronic Ballast for a 250 W High Pressure Sodium Lamp

摘要

In this paper is reported the study andimplementation of a single stage, High Power Factor (HPF) electronic ballast for High Pressure Sodium (HPS) lamps using a LCC filter. In the recent years, many authors are working to obtain single stage HPF electronic ballast for fluorescent lamps [1] [2]. Normally, to obtain HPF in electronic ballast for high-pressure sodium lamps, a Power Factor Pre-regulator (PFP) is used between the mains and the electronic ballast [3]. The main idea of this work is to present a simple and low-cost electronic ballast with HPF for HPS lamps, which does not require an additional PFP converter. To get all this advantages the price to be paid is accepting a high crest factor on the lamp.