Two Flyback-Based Integrated Converters for the Implementation of LFSW Electronic Ballasts

In this paper a new configuration of the two-flyback-based high-power-factor electronic ballast is proposed. The ballast is aimed to supply high intensity discharge (HID) lamps with a low frequency square waveform (LFSW), so that acoustic resonance (AR) phenomenon can be avoided. The proposed topology is compared to a previously presented one, which integrated the two flyback converters in a different manner. Therefore, this paper is focused on the comparison of both configurations by analyzing voltage and current waveforms and components stress. The proposed electronic ballast presents a high efficiency with a reduced number of components and no over current stress in the shared switch, which improves its efficiency. Experimental results validate both integrated configurations, but demonstrate a higher efficiency for the new arrangement proposed in this paper.

[1]  Zhaoming Qian,et al.  Design of a two-stage low-frequency square-wave electronic ballast for HID lamps , 2003 .

[2]  Y. Jang,et al.  A new soft-switched PFC boost rectifier with integrated flyback converter for stand-by power , 2004, Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04..

[3]  T.B. Marchesan,et al.  A practical comparison among high-power-factor electronic ballasts with similar ideas , 2005, IEEE Transactions on Industry Applications.

[4]  Yung-Yaw Chen,et al.  Single-Stage Push–Pull Boost Converter With Integrated Magnetics and Input Current Shaping Technique , 2006, IEEE Transactions on Power Electronics.

[5]  R.N. do Prado,et al.  Double-flyback half-bridge electronic ballast to supply HPS lamps , 2005, 31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005..

[6]  P.C. Cortizo,et al.  Acoustic Resonance Avoidance in High Pressure Sodium Lamps Via Third Harmonic Injection in a PWM Inverter-Based Electronic Ballast , 2007, IEEE Transactions on Power Electronics.

[7]  Dianguo Xu,et al.  Low-frequency sine wave modulation of 250 W high-frequency metal halide lamp ballasts , 2004, Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04..

[8]  Tsai-Fu Wu,et al.  Analysis and design of an isolated single-stage converter achieving power-factor correction and fast regulation , 1999, IEEE Trans. Ind. Electron..

[9]  J. Arau,et al.  Evaluation of close loop digital control based in a microcontroller and used to eliminate acoustic resonances in HID lamps , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[10]  M. A. Dalla Costa,et al.  Low-cost electronic ballast to supply MH lamps based on flyback converter , 2005 .

[11]  A.J. Calleja,et al.  Minimization of acoustic resonances in HID lamps: analysis and comparison of power harmonics content in high frequency non-resonant inverters , 2005, IEEE Transactions on Power Electronics.

[12]  J. Marcos Alonso,et al.  Low cost electronic ballast for a 36-W fluorescent lamp based on a current-mode-controlled boost inverter for a 120-V DC bus power distribution , 2006, IEEE Transactions on Power Electronics.

[13]  J. Ribas,et al.  Acoustic resonance characterization of low-wattage metal-halide lamps under low-frequency square-waveform operation , 2005, Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005..

[14]  J. Ribas,et al.  Acoustic-Resonance Characterization of Low-Wattage Metal–Halide Lamps , 2007, IEEE Transactions on Plasma Science.

[15]  A.J. Calleja,et al.  New control strategy in a square-wave inverter for low wattage metal halide lamp supply to avoid acoustic resonances , 2006, IEEE Transactions on Power Electronics.

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

[17]  Gerry Moschopoulos,et al.  Single-phase single-stage power-factor-corrected converter topologies , 2005, IEEE Transactions on Industrial Electronics.

[18]  J. Ribas,et al.  Evaluation of high-frequency sinusoidal waveform superposed with third harmonic for stable operation of metal halide lamps , 2002, IEEE Transactions on Industry Applications.

[19]  Cecilio Blanco Viejo,et al.  Analysis and design of a high power factor, single-stage electronic ballast for high-intensity discharge lamps , 2003 .

[20]  J. Arau,et al.  High-efficient integrated electronic ballast for compact fluorescent lamps , 2006, IEEE Transactions on Power Electronics.

[21]  M. Rico-Secades,et al.  A novel low-cost electronic ballast to supply metal halide lamps , 2005, Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005..

[22]  Chien-Ming Wang.  A Novel Single-Switch Single-Stage Electronic Ballast With High Input Power Factor , 2007, IEEE Transactions on Power Electronics.