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本帖最后由 L_uan 于 2019-8-9 10:56 编辑
实际上总体电路原理图并没有那么清晰
第一章 系统设计 ··························································································3
1．1 设计要求 ························································································3
1． 1．1 设计任务 ·············································································3
1． 1．2 技术要求 ·············································································3
1．2 方案比较 ························································································3
1．3 方案论证 ························································································4
1． 3．1 总体思路 ·············································································4
1． 3．2 设计方案 ·············································································4
第二章 主要电路设计与说明 ···········································································5
2．1 TS556 芯片简介 ·················································································5
2． 1．1 芯片的顶视图及各引脚的功能 ···················································5
2． 1．2 芯片的等效功能方框图及工作原理 ·············································5
2．2 CD4066 芯片的简介 ··········································································7
2．3 测 RX 的 RC 振荡电路 ·········································································7
2． 3．1 用 556 时基电路构成多谐振荡器 ················································7
2． 3．2 测量电阻的电路模块 ·······························································9
2．4 测 CX 的 RC 振荡电路 ······································································10
2．5 测 LX 的电容三点式振荡电路 ····························································· 11
第三章 软件设计 ························································································ 11
第四章 系统测试 ························································································ 12
4．1 测试仪器 ······················································································12
4．2 指标测试及误差分析 ·······································································12
4． 2．1 电阻的测量 ········································································12
4． 2．2 电容的测量 ········································································13
4． 2．3 电感的测量 ········································································13
第五章 总结 ······························································································ 13
参考文献 ··································································································· 13
附 录 ········································································································ 14
附录 1 元器件清单 ······················································································14
附录 2 程序清单 ·························································································15
附录 3 总体电路图 ······················································································17
附录 4 印制板图 ·························································································18
附录 5 系统使用说明 ···················································································19
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