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摘要：节能是目前环境保护的主要课题之一。随着绿色生活、低碳生活的理念逐渐深入人心，人们对节能、高效、环保的新型照明工具的要求也越来越强烈。传统光源，例如白炽灯、荧光灯因其自身缺陷越来越不能够适应照明的需求，而高强度气体放电灯（HID）以其光效高、寿命长、体积小、控光性强、显色性好的优点，已成为现代照明的主流产品之一。因此开发高效、轻便、噪音小的电子镇流器就成了一个重要课题。 论文首先介绍了电光源的发展和各自优缺点。 分析了HID灯的工作原理及电气特性，在此基础上提出了对电子镇流器的设计要求，同时介绍了镇流器的发展过程和现状。 论文接着分析了电子镇流器研究中的关键技术，对几种常见拓扑结构进行了比较。采用了目前可靠性最高也最为实用的三级式拓扑结构作为电子镇流器的总体结构。对有源功率因数校正电路（APFC）和恒功率控制进行了详细研究。论文还设计了电子镇流器的其他组成部分，包括点火电路、EMI抑制电路、全桥逆变电路。论文设计了基于MC56F8013 的数字控制电路以实现HID灯的分阶段控制，并且编写了相应的软件程序。 论文制作了 70W 高强度放电灯电子镇流器，对设计步骤和参数设计做了详细说明。最后对70W 电子镇流器进行了实验测试，实验结果表明其符合设计要求。 60990
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毕业论文关键字：高强度气体放电灯；电子镇流器；功率因数校正；恒功率控制；数字控制
Design of Electronic Ballast for HID lamps
Abstract: Energy saving is one of the main topics of the environmental protection at present. With green living, low-carbon concept has been widely accepted, the requirement of new type of energy saving, high efficiency, environmental protection lighting is becoming more and more intense. Traditional light sources, such as Incandescent, Fluorescent have many disadvantages, which makes them unable to adapt to the needs of the lighting today. But High Intensity Discharge (HID) lamps has become one of the main products of modern lighting for its advantages of high luminous efficiency, long life, small size, light control and strong color and so on. Therefore the development of efficient, lightweight and little noise electronic ballast has become an important topic. The paper introduces the development of the electric light and their advantages and disadvantages. It also analyses the working principle and electrical characteristics of HID lamps and on the basis of that, it propose the design requirements of electronic ballasts .The paper also introduces the development and current status of the ballast. The paper then analyzes the key technology of electronic ballasts. It makes a comparison of several common topologies and then chooses the highest reliability and the most practical three-stage topology as the overall structure of the electronic ballast. Active Power Factor Correction (APFC) and the constant power control were studied in detail. Simulation analysis of the APFC and Buck circuit are conducted using Saber. The paper also designed other parts of the electronic ballast, including the ignition circuit, EMI suppression circuit, the full-bridge inverter circuit. The paper designs the digital control circuit which achieves the phased control of HID lamps based on the MC56F8013 and corresponding program is given at the same time. It designed a 70W high intensity discharge lamp electronic ballast, a detailed description of the design steps and parameter design are given. At last, experimental tests are taken over the 70W electronic ballast; the experimental results show that it meets the design requirements.
Key words: High intensity discharge lamps; electronic ballasts; power factor correction; constant power control; digital control
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