动态特性模拟补偿滤波器设计与应用研究数字化控制单元设计
本文针对动态模拟补偿滤波器中某些数字电位器及模拟开关控制要求设计了相应的补偿滤波器数字化控制单元。包括主要器件的选型及控制硬件电路的完整设计，还有控制软件的设计及编写。通过实验调试验证了所设计的数字化控制单元的工作性能，结果表明所完成的基于ATmega8单片机和X9221数字电位器的数字化控制单元基本达到了设计要求。最后对进一步完善该控制单元功能提出了建议。20673
毕业论文关键词 动态特性补偿 数字电位器 数字化控制单元 ATmega8 X9221
毕业设计说明书（论文）外文摘要
Title Design and Application of Dynamic Analog Compensation Filters (The digital control unit design)
Abstract
Due to the structural principle, materials and other reasons, many dynamic characteristics of the existing dynamic measurement system may not be satisfactory. If they are accompanied by the appropriate dynamic analog compensation filters, the synthesis of the dynamic measurement system will be improved within a certain range to meet the needs fo engineering applications.
In this paper, For some of dynamic analog compensation filter’s digital potentiometer and the control request of analog switch, the control unit of analog compensation filters are be designed. Including the selection of the main components, complete design of the controlling of hardware circuit and the design and preparation of control Software. Through experimental testing, performance of the designed digital control unit is be verified. The results show that digital control unit based on ATmega8 microcontroller and X9221 digital potentiometer is basically meet the design requirements. Finally, to further improve the control unit functions, suggestions are proposed.
Keywords Compensation of the dynamic characteristics
Digital potentiometer Digital control unit ATmega8 X9221
目次
1 引言 1
1.1 动态特性模拟补偿滤波的背景与意义 1
1.2 国内外发展状况和发展趋势 2
1.2.1 动态补偿研究现状 2
1.2.2 动态补偿的发展趋势 3
1.3 本文的主要研究工作和安排 3
2 动态特性补偿滤波器的原理和主要要求 4
2.1 动态特性补偿原理 4
2.2 动态模拟滤波器的实现要求 4
3 数字化控制单元的硬件电路设计 6
3.1总体方案设计 6
3.2 器件选型 9
3.2.1 数字电位器的选型 9
3.2.2 模拟开关的选型 10
3.2.3 单片机的选型 11
3.3 单片机与器件的连接 14
3.3.1 X9221数字电位器的连接 16
3.3.2 CD4051模拟开关的连接 17
3.3.3 USB转串口电路 18
3.4 实物图 19
4 程序设计 21
4.1 编程环境介绍 21
4.2 程序下载器 22
4.3 程序流程 22
5 系统调试与实验结果 26