湖南工程学院
课 程 设 计 任 务 书
课程名称 电力电子技术 题 目 直流降压斩波器的设计
专业班级 电气工程1181-1183 学生姓名 周晖 指导老师 杨青 审 批 谢卫才
任务书下达日期 2014年 5月 26日 设 计 完成日期 2014 年6月 6日
设计内容与设计要求 一．设计内容 1. 设计出直流降压斩波器的主电路。（电压0-220V,功率1KW，阻感负载） 2．设计直流降压斩波器的控制电路。 3.设计直流降压斩波器的驱动电路。
二．设计要求 1. 2. 3. 4. 5. 给出整体设计框图，画出直流斩波器的总体原理图； 说明所选器件的型号，特性。 给出具体电路画出电路原理图； 编写设计说明书； 课程设计说明书要求用手写，所绘原理图纸用计算机打印。 （16K） 主要设计条件 1．提供计算机一台； 说明书格式 1. 2. 3. 4. 5. 6. 课程设计封面； 任务书； 说明书目录； 设计总体思路，基本原理和框图； 电路设计； 编写设计说明书；
7. 8. 9. 总结与体会； 附录； 参考文献； 10. 直流降压斩波器原理图。
进度安排 第十四周星期一：下达设计任务书，介绍课题内容与要求； 第十四周星期一——第十四周星期五：查找资料，确定设计方案，画出草图。 第十五周星期一上午——星期二下午：电路设计，打印出图纸。 星期三：书写设计报告； 星期四：书写设计报告； 星期五：答辩。 参考文献
目 录
1 绪论 ·························································································································· 14 2 设计要求与方案 ············································································································· 2
2.1 设计要求 ················································································································· 2 2.2 方案确定 ················································································································· 2 3 主电路设计 ····················································································································· 3
3.1 主电路方案 ·············································································································· 3 3.2 工作原理 ················································································································· 4 3.3参数分析 ················································································································· 4 4 控制电路设计 ·················································································································· 5
4.1 控制电路方案选择 ····································································································· 5 4.2 工作原理 ················································································································· 6 4.3 控制芯片介绍 ··········································································································· 7 5 驱动电路设计 ·················································································································· 9
5.1 驱动电路方案选择 ····································································································· 9 5.2工作原理 ················································································································ 10 6 保护电路设计 ················································································································ 11
6.1 过压保护电路 ········································································································· 11
6.1.1 主电路器件保护······························································································ 11 6.1.2 负载过压保护································································································· 11 6.2 过流保护电路 ········································································································· 13 7 系统仿真及结论 ············································································································· 14
7.1 仿真软件的介绍 ······································································································ 14 7.2仿真电路及其仿真结果······························································································ 14 8 设计体会 ······················································································································ 17 9 参考文献 ······················································································································ 18
电力电子降压斩波电路课程设计
