一种HID灯用电子镇流器控制方法的研究  

A Control Strategy for Electronic Ballast for HID Lamps

作　　者：王建新[1] 林国庆[1] 

机构地区：[1]福州大学电气工程与自动化学院,350001

出　　处：《电气应用》2008年第5期83-86,共4页Electrotechnical Application

基　　金：福建省自然科学基金资助项目(E0510008)

摘　　要：提出了一种基于半桥的两级低频方波HID灯用电子镇流器,详细分析了其工作原理及控制方案。半桥逆变器输出低频方波信号,有效克服了HID灯声谐振现象;电路中电感工作在临界电流模式,降低了开关管损耗,提高了效率。通过对一个35W金卤灯的实验验证了该方案的可行性。A two-stage low-frequency square-wave electronic ballast for high intensity discharge（HID） lamp based on half-bridge circuit is proposed. The operation and control strategy are analyzed in detail. The converter provides the lamp with low-frequency square-wave current to avoid acoustic resonances. It operates in boundary current mode （BCM）, decreases the switching loss and increases the efficiency dramatically. Its feasibility is verified by an experimental results of 35 W metal halide lamp.

关 键 词：电子镇流器 声谐振 恒功率 

分 类 号：TM923.61[电气工程—电力电子与电力传动] TM923.32