Fabrication and Testing of a Frequency Modulated Dimming Electronic Ballast
Date Issued
2009
Date
2009
Author(s)
Su, Jiun-Liang
Abstract
In recent years, the dimming capability of a fluorescent ballast has become an important feature for the energy-conscious consumers. In this thesis, a brief review was given to standard electronic ballast circuits and the various dimming schemes reported. An experimental prototype was fabricated based on SGS-Thomson Company''s integrated circuit L6574. The power circuit configuration used was a half-bridge parallel resonant inverter and frequency- modulation scheme was used for dimming capability. Design details and experimental waveforms were given and dimming capability was demonstrated.
Subjects
electronic ballast
resonant tank
half-bridge converter
Type
thesis
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ntu-98-J93921030-1.pdf
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