目录
一、系统方案设计 .............................................................................................................................................................................1
1.1 设计要求 .........................................................................................................................................1
1.2 总体方案设计 .................................................................................................................................1
1.3 总体电路图设计 .............................................................................................................................2
1.4方案论证与比较 ..............................................................................................................................3
1.4.1 主控芯片单片机（MCU）的设计方案论证与选择 .................................................................3
1.4.2 稳压电源的设计 ..........................................................................................................................3
1.4.3 漏电检测电路的设计 ..................................................................................................................4
1.4.4 关断保护电路的设计 ..................................................................................................................4
二、主要单元电路的设计 .................................................................................................................................................................5
2.1 稳压电源电路的设计 .....................................................................................................................5
2.2 采样电路的设计 .............................................................................................................................6
2.3 漏电检测电路设计 .........................................................................................................................7
2.4 放大电路的设计 .............................................................................................................................8
2.5 报警电路的设计 .............................................................................................................................9
三、程序设计 .....................................................................................................................................................................................9
四、测试方案与测试结果 ...............................................................................................................................................................10
4.1测试仪器 ........................................................................................................................................10
4.2 指标测试和测试数据 ...................................................................................................................11
4.2.1输出电压范围测试结果如表1： ...............................................................................................11
4.2.2电压调整率测试结果如表2： ...................................................................................................11
4.2.3负载调整率测试结果如表3： ...................................................................................................11
4.2.4 过流保护： ................................................................................................................................11
4.3 系统对题目的完成情况： ...........................................................................................................12
4.4 结果分析： ...................................................................................................................................12
五、结论 ...........................................................................................................................................................................................12
