Advanced design of a low-cost electronic ballast with PFC for HPS lamps

In this paper, an advanced design of a low-cost electronic ballast with PFC for HPS lamps is presented. The inverter stage is based on LCC parallel-series inverter with resonant current mode control. This control method avoids the inverter handling any reactive energy, minimizing both switching and conduction losses. Also, the design performs a natural power control without exceeding the maximum power recommended by the lamp manufacturer. Also, since it is desirable to implement a low-cost power factor correction, a buck PFC is proposed. The ignition process is optimized because no additional elements are necessary to ignite the lamp providing low ignition current through the switches. The design has been realized for 70, 150 and 250 W HPS lamps. Computer simulation and experimental results have validated the design method proposed.

[1]  J.M. Alonso,et al.  A novel low-loss clamped-mode LCC resonant inverter for HID lamp supply , 1995, Proceedings of PESC '95 - Power Electronics Specialist Conference.

[2]  Salvador Bracho,et al.  Design of LC/sub p/C/sub s/ resonant inverters as a power source for HID lamp ballast applications , 2003 .

[3]  A.J. Calleja,et al.  Analysis and design of the LCC-parallel series inverter with resonant current control as HPS lamp ballast , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[4]  José Marcos Alonso Álvarez.  Alimentación de lámparas de alta intensidad de descarga: aportaciones en la optimización del sistema electrónico , 1995 .

[5]  J. J. D. Groot,et al.  The High-Pressure Sodium Lamp , 1986 .

[6]  Giorgio Spiazzi,et al.  Analysis of buck converters used as power factor preregulators , 1997, PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972.

[7]  A.J. Calleja,et al.  Evaluation of a novel single-stage high-power-factor electronic ballast based on integrated buck half-bridge resonant inverter , 2000, APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058).