基于DSP的PWM波形发生器设计(论文)详解.doc

攀枝花学院本科毕业设计（论文） 基于DSP的PWM波形发生器设计 学生姓名： 学生学号： 200320520075 院（系） 电气信息工程学院 年级专业： 03级电子信息工程 指导教师： 二〇〇七年六月  摘 要 PWM波形发生器在20世纪70年代有了飞速的发展,20世纪80年代,PWM波形发生器已应用到各个工程技术领域，例如在工业控制中可以用它来控制各种电机、电力电子设备、逆变器等,它不管在军用还是在民用系统中都发挥了积极的作用。 本文首先对PWM波形发生器的基本原理和目前国内外的发展状况做了简单介绍，然后介绍了基于DSP的应用系统的开发流程，并对DSP的相关知识做了全面介绍，最后针对目前波形发生器的发展状况和实际生活中的应用，提出了基于DSP的PWM波形发生器的设计方法。 论文完成了基本的硬件电路设计和软件算法设计。硬件设计方面，基于DSP芯片的相关特点，采用了DSP的LF2407芯片来完成本课题的硬件电路设计。软件算法方面，根据要求采用了汇编语言进行程序设计，并给出了相关的源程序以及调试过程，最后对本设计的可行性和性能误差进行了分析。 关键词 波形发生器，LF2407芯片，PWM，DSP  ABSTRACT The pulse-width modulation (PWM) profile generator had the rapid development in the 20th century, in 1980s, The PWM profile generator has applied each project area of technology, For example, it can be used to control each kind of electrical machinery in the industry, the electric power, electronic installation, the inversion and so on, no matter in military or in the civil system, it has all played the positive role. This article first has made the simple introduction to the PWM profile generator basic principle and the present domestic and foreign development condition, then introduced based on the digital signal processing (DSP) application system development flow, and has made the comprehensive introduction to the DSP related knowledge, finally aimed at present in the development condition and the practical life application proposed based on the DSP PWM profile generator design method. This paper has completed the basic hardware circuit design and the software arithmetic design. The hardware design aspect, according to the DSP chip related characteristic, this paper adopted the LF2407 of DSP chip to achieve the hardware circuit design. The software algorithm aspect, according to request, it adopted the assembly language to carry on the programming, and has produced the related source program as well as the debugging process, finally has carried on the analysis to this design feasibility and the performance error. Key words prof