Title :
A series-resonant electronic ballast for rapid-start fluorescent lamps with programmable starting
Author :
Moo, Chin S. ; Chen, Wei M. ; Yen, Hau C.
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
A series-resonant energy-tank is added onto the series-resonant electronic ballast to improve the starting performance of the rapid-start fluorescent lamp. The series-resonant energy-tank is used as the starting-aid circuit to eliminate the glow current in the lamp during the preheating interval. By adjusting the operating frequency, the electronic ballast is able to provide an adequate filament current for preheating with nearly zero lamp voltage, a lamp voltage high enough for ignition, and then the required lamp power and filament current at steady-state. A prototype of the electronic ballast with the proposed control scheme is built for a T8-36 W fluorescent lamp. Experimental tests exhibit satisfied results
Keywords :
bridge circuits; electric ignition; fluorescent lamps; invertors; lamp accessories; power factor correction; programmed control; resonant power convertors; starting; 110 V; 36 W; 60 Hz; T8 fluorescent lamp; electronic ballast; filament current; glow current elimination; half-bridge inverter; ignition; lamp power; nearly zero lamp voltage; operating frequency adjustment; power-factor-corrector; preheating; programmable starting; rapid-start fluorescent lamps; series-resonant electronic ballast; series-resonant parallel-loaded inverter; starting performance improvement; Circuits; Electronic ballasts; Fluorescence; Fluorescent lamps; Frequency; Ignition; Prototypes; Steady-state; Testing; Voltage;
Conference_Titel :
Power Conversion Conference, 2002. PCC-Osaka 2002. Proceedings of the
Conference_Location :
Osaka
Print_ISBN :
0-7803-7156-9
DOI :
10.1109/PCC.2002.998529
