基于LabVIEW的DC/DC转换器效率自动测试系统的开发与设计

基于LabVIEW的DC/DC转换器效率自动测试系统的开发与设计(论文13000字)
摘要：随着DC/DC变换技术在人们生活中运用的范围的越来越广，所以对这种DC/DC转换器的效率追求也越来越严格。如今，DC/DC转换器的性能检测大部分都是依靠人工检测，检测的过程十分复杂，精确性也很差。结合各种测量技术的优缺点，在本文中我们设计并实现了一个基于LabVIEW的DC/DC转换器效率自动测试系统，用于测量一般DC/DC转换器上的功率效率。设计和完成DC/DC转换器输入和输出两路电压和电流的测量电路，然后通过模数转化电路经过STM32F103系列微处理器实时采集和处理，用户可以通过按键控制用户界面选择模式，便可在LCD液晶屏本地实时显示用户想要的输入和输出的两路电压或电流值，然后通过串口将两路的电压和电流值数据传送到PC端，利用LabVIEW软件工具对测量数据进行计算整合得到DC/DC转换器的功率效率，并在LabVIEW界面作图显示出来。
关键词：DC/DC转换器；LabVIEW；效率；自动化测试仪器
 
Development and design of automatic test system for the efficiency of DC/DC converter based on LabVIEW
Abstract：Because the range of DC/DC conversion technology used in people's lives is becoming wider and wider, the performance requirements for such converters are becoming higher and higher. Today, most of the performance testing of DC/DC converters relies on manual inspection. The detection process is very complicated and the accuracy is very poor. Combining the advantages and disadvantages of various measurement techniques, in this paper, we design and implement a LabVIEW-based DC/DC converter efficiency automatic test system for measuring the power efficiency of a general DC/DC converter. Design and complete the DC/DC converter input and output two-way voltage and current measurement circuit, through the analog-to-digital conversion circuit through the STM32F103 series microprocessor real-time acquisition and processing, the user can control the user interface selection mode by pressing the button, you can The LCD screen displays the two voltages or current values of the input and output that the user wants in real time, and then transmits the voltage and current value data of the two channels to the PC through the serial port, and uses the LabVIEW software tool to calculate and integrate the measurement data to obtain DC- The power efficiency of the DC converter is shown in the LabVIEW interface.
Key words：DC/DC converter; LabVIEW; efficiency; ATE
 

目录
摘要    I
Abstract    II
1绪论    1
1.1本文的研究意义    1
1.2国内外开发概况    1
1.3本文的设计任务    2
1.4本文的组织结构    2
2DC/DC转换器自动测试系统关键理论分析    3
2.1 DC/DC转换器概述    3
2.2 DC/DC转换器的分类    4
2.2.1 Non-Isolated式DC/DC转换器（非绝缘型）    4
2.2.2 Isolated式DC/DC转换器（绝缘型）    5
2.3 DC/DC转换器的效率    5
2.4 DC/DC转换器自动测试可行性    5
2.4.1虚拟仪器概述    6
2.4.2自动测试系统    6
3自动测试系统硬件设计    7
3.1自动测试系统设计方案    7
3.2电源管理模块设计    8
3.3滤波调理模块设计    8
3.4转换模块设计    9
3.5按键控制模块设计    9
3.6模数转换模块设计    10
3.7主控单元芯片    10
3.8通信模块设计    11
3.9显示模块设计    12
3.10印刷电路板布局和布线设计    12
4自动测试系统软件设计    14
4.1数据采集软件设计    14
4.2显示模块软件设计    15
4.3串口通信软件设计    15
4.4按键操作软件设计    16
4.5程序下载软件设计    16
5 LabVIEW的开发和设计    17
5.1 LabVIEW的介绍    17
5.2 LabVIEW的开发环境    18
5.3 LabVIEW上位机开发    19
5.3.1 LabVIEW开发流程    19
5.3.2 STM32数据处理    20
5.3.3 LabVIEW前面板    20
6系统测试    21
6.1系统的硬件测试    21
6.2系统的软件测试    23
6.3不同电压下的测试数据比较    23
7总结和展望    25
7.1论文的工作总结    25
7.2未来研究工作展望    25
参考文献    25
致谢    28