Boost half-bridge ballast with high power factor and auxiliary resonant branch

A new converter is proposed with a power factor control and a resonant auxiliary capacitive branch to provide reduction of current in a switch and also to provide soft commutation in another switch.

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

[2]  A.J. Calleja,et al.  Single-stage constant-wattage high-power-factor electronic ballast with dimming capability , 1998, PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196).

[3]  J. Ribas,et al.  Analysis and experimental results of a single-stage high-power-factor electronic ballast based on flyback converter , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

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