Improved start-up scenario for single-stage electronic ballast

This paper presents improved start-up scenario for single-stage electronic ballast derived with a synchronous switch technique (SST). Based on the SST, the derivation of a single-stage inverter (SSI) used for realizing the ballast is then addressed. The SSI can achieve both high power factor and ballasting function. During lamp start-up transition, power imbalance may exist between the power factor correction semi-stage and the ballast semi-stage, and filament preheating is an important issue. Power imbalance usually results in a high DC-link voltage which, in turn, imposes high stress on the switching devices. Investigation of the ballast operation is conducted, from which control strategies for reducing component stresses and hot resistance detection circuits for minimizing electrode sputtering are therefore proposed. Hardware measurements have verified that on-off tests are higher than 18,000 times without significant sputtering.

[1]  E. E. Hammer,et al.  Photocell enhanced technique for measuring starting electrode temperatures of fluorescent lamps , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.

[2]  Slobodan Cuk,et al.  Single switch, unity power factor, lamp ballasts , 1995, Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95.

[3]  J.L.F. Vieira,et al.  Constant DC link voltage HPF electronic ballast , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.

[4]  Fred C. Lee,et al.  Reduction of voltage stress in charge pump electronic ballast , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[5]  Tsai-Fu Wu,et al.  Analysis and design of a high power factor, single-stage electronic ballast with dimming feature , 1997, Proceedings of APEC 97 - Applied Power Electronics Conference.

[6]  E. Lopez,et al.  A single stage fluorescent lamp ballast with high power factor , 1996, Proceedings of Applied Power Electronics Conference. APEC '96.

[7]  Tsai-Fu Wu,et al.  Off-line applications with single-stage converters , 1997, IEEE Trans. Ind. Electron..

[8]  E. E. Hammer,et al.  Performance Characteristics of an Integrally Ballasted 20-W Fluorescent Quad Lamp , 1993 .

[9]  D.S.L. Simonetti,et al.  High power factor electronic ballast operating at critical conduction mode , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[10]  Chern-Lin Chen,et al.  A self-excited half-bridge series-resonant ballast with automatic input current shaping , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[11]  C. R. Lee,et al.  A new power factor correction circuit for electronic ballasts with series-load resonant inverter , 1996, Proceedings of Applied Power Electronics Conference. APEC '96.

[12]  Domingos Sávio Lyrio Simonetti,et al.  High power factor electronic ballast operating at critical conduction mode , 1996 .

[13]  R. Redl,et al.  A new family of single-stage isolated power-factor correctors with fast regulation of the output voltage , 1994, Proceedings of 1994 Power Electronics Specialist Conference - PESC'94.

[14]  R. Redl.  An economical single-phase passive power-factor-corrected rectifier: topology, operation, extensions, and design for compliance , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[15]  S. Cuk,et al.  Single stage, high power factor, lamp ballast , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.

[16]  I. Takahashi.  Power factor improvement of a diode rectifier circuit by dither signals , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[17]  Fred C. Lee,et al.  An improved "charge pump" electronic ballast with low THD and low crest factor , 1996, Proceedings of Applied Power Electronics Conference. APEC '96.

[18]  R. Redl,et al.  Design considerations for single-stage isolated power-factor-corrected power supplies with fast regulation of the output voltage , 1995, Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95.

[19]  W. R. Alling.  Important design parameters for solid-state ballasts , 1989 .