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电气与电子信息工程学院

《电力电子装置设计与制作课程设计报告》

课设名称： 开关直流升压电源（BOOST）设计 专业名称： 电气工程及其自动化 班 级： 学 号： 姓 名： 指导教师： 课设时间： 课设地点：

电气与电子信息工程学院

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《电力电子装置设计与制作》课程设计任务

书

学生姓名： 专业班级： 指导教师： 工作部门：

一、课程设计题目：

开关直流升压电源（BOOST）设计

二、课程设计内容

根据题目选择合适的输入输出电压进行电路设计，在Protel或OrCAD软件上进行原理图绘制；满足设计要求后，再进行硬件制作和调试。如实验结果不满足要求，则修改设计，直到满足要求为止。

题目：开关直流升压电源（BOOST）设计 主要技术指标：

1）输入交流电压220V（可省略此环节）。 2）输入直流电压在11-12V之间。

3）输出直流电压17V，输出电压纹波小于2%。 4）输出电流1A。

5）采用脉宽调制PWM电路控制。

目录

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摘要··································································5 第一章 方案选择和方案论证·············································7

1.系统方案设计····················································7 2.方案论证························································7 第二章 主电路计算和器件选择··········································8

1.设计要求························································8 2.选择开关管的频率················································8 3.占空比计算······················································8 4.电感的计算(按D=35.29%)··········································8 5.电容的计算······················································8 6.电感峰值电流的计算(按D=35.29%)··································8 7.开关管的选择····················································8 8.开关损耗的计算(按D=35.29%)······································9 9.二极管的选择····················································9 10.电阻的计算·····················································9 第三章 系统功能及原理················································10

1.系统功能·······················································10 2. boost电路工作原理·············································10 第四章 各模块的功能和原理············································13

1. TL494工作原理·················································13 2. 开关频率的计算················································13 第五章 MATLAB仿真····················································15

1.仿真原理图·····················································15 2.仿真结果·······················································15 3.仿真结果分析···················································16 第六章 实验结果以及分析··············································17

1.实验结果·······················································17 2.结果分析·······················································17 第七章 硬件电路······················································18

1.焊接电路主电路图···············································18 2.焊接电路控制电路图·············································18

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