Title :
Harmonized strategy for breaking the striations in the fluorescent lamp
Author :
Hsieh, Guan-Chyun ; Lin, Chang-Hua
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
fDate :
4/1/2001 12:00:00 AM
Abstract :
A harmonized strategy for breaking the striations in the fluorescent lamp is proposed. The harmonized circuit (HC) presented is a dependent current source and is used to modulate the lamp current by making the amplitudes of the even harmonics nearly the same as the neighboring odd harmonics. The time and frequency responses of the lamp current without and with HC are respectively simulated and experimented for describing the striation behavior. The dimmer system with HC can actually provide better immunity from striation for the lamp during a wide dimming range from 10% to 100%. In addition, the lighting efficiency increases up to 16.2%
Keywords :
brightness; discharges (electric); fluorescent lamps; frequency response; harmonics suppression; lamp accessories; lighting control; dependent current source; dimmer system; electronic ballast; even harmonics; fluorescent lamp; frequency response; harmonized circuit; harmonized strategy; lamp current modulation; lighting efficiency; luminance control; neighboring odd harmonics; striations breaking; time response; Amplitude modulation; Circuit simulation; Electromagnetic interference; Electronic ballasts; Fluorescent lamps; Frequency modulation; Immune system; Pulse width modulation; Resonance; Visualization;
Journal_Title :
Industrial Electronics, IEEE Transactions on
