金卤灯数字电子镇流器设计与研制

Design and Manufacture of Digital Electronic Ballast for Metal Halogen Lamp

摘要: 金卤灯是一种发光率很高的新一代绿色电光源，本文以单片机PIC芯片为控制电路，以半桥逆变电路为驱动电路，采用两级电路拓扑结构，设计了工作软件，研发出了250W的金卤灯电子镇流器并且阐述了设计思路、工作原理、样机研制和测试结果。结果显示，主要技术指标及环境适应性达到设计要求，且具有启动平稳、功率输出恒定、工作效率高，无声共振等优点。

Abstract: Metal halogen lamp is a new generation of green electric light source with high luminous efficacy. In this paper, a 250 W laboratory prototype is designed with two level topology, PIC chip as con-trol circuit, half-bridge inverter circuit as driving circuit. And the design idea, working principle and test results are described. The final results show that the main technical indicators and envi-ronmental adaptability meet the design requirements, and the metal halogen lamp has the advantages of smooth start, constant power output, high efficiency, silent resonance and so on.