Title :
Igniting behaviour of the fluorescent lamp in high-frequency operation
Author :
Hsieh, Guan-Chyun ; Lin, Chang-Hua ; Yu, Ben-Jong
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
fDate :
31 Aug-4 Sep 1998
Abstract :
Examining the igniting behaviour of the fluorescent lamp in high-frequency operation is proposed. Energy accumulation is used to estimate the ignition condition for the fluorescent lamp. The models of the ballast with the fluorescent lamp before and after ignition are built. Preheating time, igniting voltage and current are derived according to the presented models. These parameters are dependent one another for a constant igniting energy. A test equipment built for igniting the lamp is proposed to examine the lamp behaviour. Interestingly, the required ignition energy is almost constant and independent of operating frequency. Besides, the ballast with variable-frequency drives compared with the constant-frequency one can provide soft-starting and save igniting energy over 20%
Keywords :
electric ignition; energy conservation; fluorescent lamps; lamp accessories; ballast; fluorescent lamp; high-frequency operation; igniting behaviour; igniting current; igniting voltage; ignition energy savings; preheating time; test equipment; variable-frequency drives; Capacitance; Capacitors; Circuit topology; Coupling circuits; Electronic ballasts; Equivalent circuits; Fluorescent lamps; Frequency; Impedance; Voltage;
Conference_Titel :
Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE
Conference_Location :
Aachen
Print_ISBN :
0-7803-4503-7
DOI :
10.1109/IECON.1998.724224
