《电力电子装置及系统》课程设计说明书
目 录
摘要........................................................................ I
1 Buck/Boost 变换器分析 ..................................................... 1
1.1 基本电路构成 ........................................................ 1
1.2 基本工作原理 ........................................................ 1
1.3 工作波形 ............................................................ 2
2 Buck/Boost 变换器基本关系 ................................................. 3
3 主要参数计算与选择........................................................ 5
3.1 输入电压 ............................................................. 5
3.2 负载电阻 ............................................................. 5
3.3 占空比α ............................................................. 5
3.4 电感 L ............................................................... 5
3.5 输出滤波电容 C 计算 ................................................... 6
4 理论输入、输出电压表达式关系.............................................. 7
5 仿真电路与仿真结果分析.................................................... 8
5.1 buck/boost 仿真电路图 ................................................ 8
5.2 线性稳压电源仿真 ..................................................... 8
5.3 稳压电源波形图 ....................................................... 9
5.4 升压时输出电压与电流波形 ............................................ 10
5.5 降压时输出电压与电流波形 ............................................ 11
总结....................................................................... 13
参考文献................................................................... 14
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