Dimmable electronic ballast for high wattage metal halide lamp

被引：0

作者：

Terayama I. ^{[1
]}

Umezawa Y. ^{[1
]}

Oosato T. ^{[1
]}

Kenmotsu Y. ^{[1
]}

机构：

[1] Eye Lighting Systems Corporation, Japan

来源：

Journal of Light and Visual Environment | 2010年 / 34卷 / 01期

关键词：

Dimming; Electronic ballast; Low-frequency square-wave; Metal halide lamp;

D O I：

10.2150/jlve.34.42

中图分类号：

学科分类号：

摘要：

This paper presents a commercialized dimmable electronic ballast for 1000 W metal halide (MH) lamp and its application. The ballast is a three-stage power converter. It is composed of boost converter to achive high power factor, buck converter to control lamp power, and an inverter to supply the lamp with low-frequency square-wave current. The power of 1000 W MH lamp can be varied linearly in the range from almost 65 % to 100 % with on-duty of the external control signal. Low current distortion, high efficiency of the ballast (94%), and low lamp power variation (less than 0.4%) are achieved. Furtheremore, an application of the ballast to a factory with high ceiling is demonstorated. As a result, we could achive reduction in energy consumption in the site.

引用

页码：42 / 46

页数：4