전력선모뎀 및 조광제어 안정기를 이용한 400W Metal Halide Lamp의 조광제어 시스템 개발

Development of Dimming control system for 400W Metal Halide Lamp by Electronic Ballast and Power Line Modem

In this paper, we developed remote dimming control system of electronic ballast for 400W metal halide lamp. This ballast could limit ignition current and soft start-up technique by the inverter with LCsCp resonance tank. The dimming circuit can dim from 400W to 200W by varying of the inverter switching frequency. The PLM consists of coupling circuit, BPF(Band-Pass Filter), FSK(Frequency Shift Keying) Modem and ${\mu}$-controller(Micro Controller). By coupling electronic ballast with PLM, the system that able to dimming the lamp through PLM is demonstrated by experimental results.