论文信息 - Evaluation of acoustic resonance in metal halide (MH) lamps and an approach to detect its occurrence

Evaluation of acoustic resonance in metal halide (MH) lamps and an approach to detect its occurrence

A method to detect the occurrence of the acoustic resonance based on lamp electrical parameters has been proposed. Extensive experiments are conducted on 70 W metal halide lamps from different manufacturers and a lamp acoustic resonance detection method based on /spl Delta/R/R variation is developed. A new topology for a smart ballast which selects the operating frequency for stable operation based on real time measurements is proposed.

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