Title :
Self-oscillating dimmable electronic ballast
Author :
Seidel, Álysson R. ; Bisogno, Fabio E. ; Prado, Ricardo N. ; Pinheiro, Humberto ; Pavão, Rafael K.
Author_Institution :
Univ. Fed. de Santa Maria, Brazil
Abstract :
This paper presents two simple alternatives of electronic ballast operating in self sustained oscillating mode with dimming capability for fluorescent lamps. A simple modification in the drive circuit allows dimming of the lamp. The describing function method and the extended Nyquist criterion are used in the analysis and the design. Experimental results from two 40 W electronic ballasts are presented to demonstrate the performance and to validate the analysis carried out
Keywords :
Nyquist criterion; fluorescent lamps; lamp accessories; lighting control; oscillations; 40 W; describing function method; dimming capability; drive circuit; extended Nyquist criterion; self sustained oscillating mode; self-oscillating dimmable electronic ballast; Circuits; Current transformers; Electronic ballasts; Energy consumption; Fluorescent lamps; Frequency; Inductance; Inductors; MOSFETs; Magnetic resonance;
Conference_Titel :
Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-7108-9
DOI :
10.1109/IECON.2001.975922
