Title :
Analysis and design of single-stage electronic ballast with bridgeless PFC configuration
Author :
Liang, Tsomg-Juu ; Kang, Shih-Cheng ; Cheng, Chun-An ; Lin, Ray-Lee ; Chen, Jiann-Fuh
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
A single-stage, high power factor electronic ballast used to drive fluorescent lamps is analyzed and designed in the paper. The electronic ballast, combining a bridgeless power-factor-correction converter with a series-resonant parallel-loaded inverter, has the functionality of input current shaping for achieving high power factor (HPF) and provides a sufficient high voltage to strike the lamp during start-up period and rated lamp power at steady state. The features of the ballast are low cost, high power factor (PF>0.99), low crest factor (CF<1.7), zero-voltage switching (ZVS) and identical current stress on each power switch. Operational principles, design equations and experimental results of one 36-W fluorescent lamp operating at 50 kHz switching frequency with 110 V-rms line input voltage are presented.
Keywords :
design; fluorescent lamps; lamp accessories; power factor; power factor correction; resonant invertors; 110 V; 36 W; 50 kHz; PF; ZVS; bridgeless power factor correction converter; crest factor; fluorescent lamps; high power factor; identical current stress; input current shaping; power switch; series resonant parallel loaded inverter; single stage electronic ballast analysis; single stage electronic ballast design; switching frequency; zero voltage switching; Costs; Electronic ballasts; Equations; Fluorescent lamps; Inverters; Reactive power; Steady-state; Stress; Switching frequency; Zero voltage switching;
Conference_Titel :
Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE
Print_ISBN :
0-7803-7906-3
DOI :
10.1109/IECON.2003.1280031
