数字控制金卤灯电子镇流器

Research on digital control strategy of electronic ballast for MH lamp

本文针对模拟控制电子镇流器存在的许多不足之处,提出了数字控制电子镇流器的控制方法,采用PIC16F873系列单片机,实现对金卤灯的启动及其稳态运行过程的控制,实现与灯的不同阶段的负载特性相匹配。介绍其工作原理,电路结构组成,并通过实验验证该方法是可行的。

To deal with the weakness of the analogy control in the electronic ballast, a novel digital control strategy of electronic ballast for MH lamp with PIC16F873 singleehip is proposed in the paper,.It can meet the requirements of the control of MH starting and steady state, and can be used to operate MH lamps and makes the lamp work well.The circuit operation and the framework of the circuit are detailed, and the experimential measurements are used to verify the theoretical prediction.