1.1 选题意义及目的..............................................................................................................3 1.2 设计任务........................................................................................................................... 4 1.3 设计要求........................................................................................................................... 4
1.3.1 基本要求.................................................................................................................. 4
1.3.2 发挥部分要求......................................................................................................... 5 第二章 本系统总体方案设计....................................................................................................6
毕业论文(设计)
题目名称： 开关电源模块并联供电系统
目录
中文摘要......................................................................................................................... 1 英文摘要................................................................................................................. ....2 第一章 绪论...................................................................................................3
[关键字]：EasyARM1138；AMSCS；ECM；数字式的平均电流自动均流法；效率；
第 1 页（共 43 页）
英文摘要
Switching power supply modules parallel power supply system
[ABSTRACT]With the development of power electronics technology, multi-module parallel operation of distributed power systems are widely used in computer, industrial instrumentation, military, aerospace and other fields. The design is a parallel two BUCK circuit, bring the load to achieve the accuracy of the current distribution, output over-current protection as well as after the failure of the automatic recovery feature.
2.1.系统方案设计与论证.....................................................................................................6 2.2.理论分析与参数计算.................................................................................................... 7 第三章 硬件电路设计............................................................................................................... 17 3.1 系统选材........................................................................................................................ 17 3.2 DC-DC 电路设计............................................................................................................19 3.3 电流采集电路设计....................................................................................................... 20 第四章 软件设计部分............................................................................................................... 22 4.1 EasyARM1138 简介...................................................................................................... 22 4.2 软件流程图.....................................................................................................................24 第五章 系统测试........................................................................................................................ 26 5.1 主要元器件................................................................................................................... 26 5.2 测试方法........................................................................................................................ 26 5.3 测试仪器清单............................................................................................................... 26 5.4 负载调整额定功率测试..............................................................................................26 5.5 系统效率测试................................................................................................................ 27 5.6 4A 均流测试...................................................................................................................27 5.7 任意比分流点测试...................................................................................................... 27 5.8 过流保护及自动自恢复功能.....................................................................................28 5.9 其它功能测试................................................................................................................ 28 5.10 误差分析.................................................................................................... ............. ... 28 第六章 总体结论.................................................................................................................... ..29 参考文献........................................................................................................................................30 附录............................................................................................................................................. ....31