A unity power factor electronic ballast for fluorescent lighting

Autor: S.A. Bonaldo, R.N. de Prado, Fábio Ecke Bisogno, D.S. Greff
Rok vydání: 2002
Předmět:
Zdroj: IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.
DOI: 10.1109/ias.1997.626394
Popis: This paper describes a high power factor electronic ballast for fluorescent lamps. The converter offers a high power factor and high-frequency supply to the lamp. In spite of its simplicity an excellent performance concerning load and supply is achieved, ensuring a sinusoidal and in-phase supply current. High power factor is achieved by using a flyback converter operating in discontinuous-conduction mode. Operating principle, design equations, control characteristics, component stress, and efficiency are presented. Experimental results have been obtained for one 40 W fluorescent lamp operating at 50 kHz switching frequency and 220 V line voltage.
Databáze: OpenAIRE