An auxiliary self-oscillating preheating system for self-oscillating fluorescent lamp electronic ballasts
R Gules, WM dos Santos, EFR Romaneli… - IEEE Transactions …, 2011 - ieeexplore.ieee.org
R Gules, WM dos Santos, EFR Romaneli, CQ Andrea, RC Annunziato
IEEE Transactions on Industrial Electronics, 2011•ieeexplore.ieee.orgThe fluorescent lamp lifetime is very dependent of the start-up lamp conditions. The lamp
filament current and temperature during warm-up and at steady-state operation are
important to extend the life of a hot-cathode fluorescent lamp, and the preheating circuit is
responsible for attending to the start-up lamp requirements. The usual solution for the
preheating circuit used in self-oscillating electronic ballasts is simple and presents a low
cost. However, the performance to extend the lamp lifetime is not the most effective. This …
filament current and temperature during warm-up and at steady-state operation are
important to extend the life of a hot-cathode fluorescent lamp, and the preheating circuit is
responsible for attending to the start-up lamp requirements. The usual solution for the
preheating circuit used in self-oscillating electronic ballasts is simple and presents a low
cost. However, the performance to extend the lamp lifetime is not the most effective. This …
The fluorescent lamp lifetime is very dependent of the start-up lamp conditions. The lamp filament current and temperature during warm-up and at steady-state operation are important to extend the life of a hot-cathode fluorescent lamp, and the preheating circuit is responsible for attending to the start-up lamp requirements. The usual solution for the preheating circuit used in self-oscillating electronic ballasts is simple and presents a low cost. However, the performance to extend the lamp lifetime is not the most effective. This paper presents an effective preheating circuit for self-oscillating electronic ballasts as an alternative to the usual solution.
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