Title :
Magnetic dimming of electronic ballasts
Author :
Alonso, J.M. ; Dalla-Costa, M.A. ; Cardesín, J. ; García, J.
Author_Institution :
DIEECS Tecnologia Electron., Univ. de Oviedo, Gijon, Spain
fDate :
6/9/2005 12:00:00 AM
Abstract :
A new control method for electronic ballasts based on magnetic regulators is presented. The proposed method allows starting and dimming the lamp at constant frequency by adjusting the inductance of the resonant tank. The main advantages are inherent galvanic isolated control, more linear control characteristics, lower EMI, and high efficiency in the whole dimming range. Analysis and experimental results from a 36 W linear fluorescent lamp prototype are presented.
Keywords :
fluorescent lamps; inductance; lamp accessories; lighting control; power control; 36 W; electronic ballasts; inductance; inherent galvanic isolated control; lamp dimming; linear control characteristics; linear fluorescent lamp prototype; magnetic dimming; magnetic regulators; resonant tank;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20058340
