Title :
An electrode power control scheme for dimmable electronic ballasts
Author :
Lee, S.T.S. ; Chung, Henry ; Hui, Shu Yuen Ron
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, China
Abstract :
A novel electrode power control scheme for dimmable ballasts is proposed. Dimming of the fluorescent lamp and control of electrode power are achieved by simultaneously adjusting the dc-link voltage and the switching frequency of the output inverter. The electrode power is derived by considering the near-orthogonal property of the lamp current and the resonant tank circuit current.
Keywords :
fluorescent lamps; lamp accessories; power control; dc-link voltage; dimmable ballasts; dimmable electronic ballasts; electrode power control; electrode power control scheme; fluorescent lamp; lamp current; near-orthogonal property; output inverter; resonant tank circuit current; switching frequency; Electrodes; Electronic ballasts; Fluorescent lamps; Heating; Inverters; Power control; RLC circuits; Resonance; Switching frequency; Voltage control;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2003.819568
