Experiment of high frequency operation and dimming control of HID lamps from 60 Hz line source

概要

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HID lamps have the high luminous efficacy of radiation and therefore, the ballast is desirable to be compact, light weight and energy saving type for illumination of the general use with line source. In addition, the continuous dimming also will meet a demand of suitable illumination, and then promote the spread of indoor use of HID lamps.This paper describes experimental results on high frequency operation from 60 Hz line source and its dimming control of HID lamps with frequency beyond 100 kHz with MOS-FET avoiding the acoustic resonance phenomenon. The system has demonstrated the characteristics of high power factor, stable performance, good controllability and the capability of continuous dimming control over the range from 100 to about 30 percent, although the overall efficiency is a little worse than that of a conventional type (core-coil) ballast because of wide dimming design.
社団法人照明学会の論文