《工程实用型交流斩波调压电路的研究》-毕业论文.doc

工程实用型交流斩波调压电路的研究 摘要： 交流斩波控制调压技术是一种新型高性能的交流调压技术,在中小交流调压领域获得广泛应用。本文通过对现有文献上出现的此类电路拓扑比较分析,指出它们各自优缺点、适用场合以及该技术发展方向。本文采用交流斩波电路，用AT89S52单片机为控制器，根据双向电力电子开关的特性，应用单片机技术对电力电子开关的通断时间进行控制，从而设计了一套交流调压装置。对装置硬件组成、调压原理及方法、系统软件等做了详细介绍。本装置采用汇编语言编程，实现了控制口稳定输出方波信号，经过调试装置最终可以看出主回路的电压变化。 关键词：交流斩波，调压，单片机，电力电子开关IGBT AC chopping voltage regulation circuit research Abstract： AC chopping voltage regulator is characterized of high performance,now being extensively applicable in small and medium voltage regulation. By comparison of the topologies have been Given in references, the paper gives their advantages and disadvantages , applying occasions respectively ,and developing trend of the technique.The device in exchange chopper circuit, with AT89S52 SCM for controller, according to double-way power electronic switch with the characteristics of SCM application of electronic technology to power the on-off switch to control the timing, designed a device exchange regulator. The design is also responsible for hardware components, principle of voltage adjusting and system software. By programming by assembling language, the device can approach and guarantee the stable square wave output toward the controlling interface. The final aftermath resulted by debugging related device reflects the change of voltage on main circuit. Keywords： ac-chopper, voltage regulators, microcontroller ,electrical electronic switch 目录 TOC \o 1-3 \h \u HYPERLINK \l _Toc9173 第一章 绪论 PAGEREF _Toc9173 1 HYPERLINK \l _Toc19973 1.1 选题的目的和意义 PAGEREF _Toc19973 1 HYPERLINK \l _Toc16846 1.2 交流斩波调压的发展趋势 PAGEREF _Toc16846 2 HYPERLINK \l _Toc5142 1.3本课题主要讨论的内容 PAGEREF _Toc5142 3 HYPERLINK \l _Toc17987 第二章 交流斩波的调压原理 PAGEREF _Toc17987 4 HYPERLINK \l _Toc24286 2.1IGBT的原理 PAGEREF _Toc24286 4 HYPERLINK \l _Toc18711 2.1.1 IGBT的基本结构 PAGEREF _Toc18711 4 HYPERLINK \l _Toc27130 2.1.2 IGBT的工作原理 PAGEREF _Toc27130 6 HYPERLINK \l _Toc13718 2.2 交流斩波的调压原理 PAGEREF _Toc13718 6 HYPERLINK \l _Toc8484 2.