[毕业设计精品]双音门铃设计报告书

课程设计说明书（论文）课程设计题目双音门铃设计学生姓名学号院系专业班级指导教师姓名及职称起止时间2011年3月2011年6月课程设计评分一、课题名称双音门铃设计二、画出完整的电路图，并说明电路的工作原理双音门铃原理图与PCB图如下图该电路的工作原理当按下开关，NE555计时器，4引脚于高电平，元件工作，电容C1充电，且2、6引脚达到高电平，此时输出端3为低电平，扬声器发出响声；开关松开后，电容C1放电，在2、6引脚大于1/3VCC前，3端为低电平，扬声器工作；当放电使2、6端电平小于1/3VCC，3端为高电平，扬声器不工作。电容C2与滑动变阻器一起控制引脚4的状态，使置零输入端呈不同的临界电压，从而控制扬声器响音时间的长短。当电路转换时，2、6端电压不同，使得输出端3低电平电压也不同，从而实现扬声器的双音。三、总结设计电路和方案的优缺点，指出课题的核心及实用价值，提出改进、意见和展望设计电路和方案的优缺点1、电路简单可行，选择得当，适合刚刚开始学习电路制板的学生像我G1216。2、G6492G16850的时间和G17839G12255G4445G6502得当。G16850G20076的G7692G5527G2462实G11004G1227G15521G10099G5725G6175工G9950G19189G5132G11004工G1867的使G11004方G8873。2G3534G7424G6496G6581G6175工电G9901G19093的G9950G6521G6228G7427，G14033G3827G10432G12447的G4448G6116简单电G4388G1147G2709的G4445G16025与G9950G6521。G10099G5725电G4388G1147G2709的G4445G16025工G14414的G8981G12255。3G14033G3827G7693G6466电路原理图，元器件实G10301设计G5194制作小工G14414G2709。4G10099G5725G5132G11004电G4388器件的G12879G2047、G3423G2507、G16280G7696、G5627G14033G2462G1866使G11004G14551G3272，G14033G7609G19417G7389关的电G4388器件图G1082。5G14033G3827G8503G11842G16794G2047和选G11004G5132G11004的电G4388器件。G1114G16311电G4388G1147G2709的G9950G6521、G16855G16809与G13512G1474方G8873。四、列出系统需要的元器件电阻3G1022，电G16311电容2G1022，G10955G10267电容2G1022，G7509G5627电容2G1022，NE555NG14467G102671G3371，电G1313器1G1022，按G192021G1022，G6566G190362G1022五、收获、体会；G7424G1166学习双音门铃的制作G7171从G16760G16794元件开始的，刚刚G990G12544一G14422G16850时，从G7044G16760G16794G1114电阻，G11705G17959G1114电阻的G16847G6980G7389G11464G7643G8873，G7003G4395G12538G2507G8873，G14406G7643G8873，G6980G11733G8873。而且，学习G14406G7643G8873的时G1517G17836G6238G18039G1022G14406G10627G20080G14406与G6980G1552G4557G10043G15932G13984下G7481G1114，到现在G17836G16772得G7849G13430G8237G21656G13523G15025G13055G9796G11345G21669G18341G19146G7092G14406，G17837G1135G12879G3423。G6521G11540，G16760G16794G1114电阻器，G2010G2047G7389电阻，可变电阻，敏感电阻。到G1114电容器，电容器可G2010为一般电容，G7509G5627电容，微G16855电容，电联可变电容，双联可变电容。到G1114电感器，一般电感器，G7389磁G5527或G7389G19093G5527电感器，可G16855电感器。G17836G16760G16794G1114三G7509管。到G1114G12544二G14422G16850，我G1216G11004万G11004G15932动G6175测量G1114电阻的阻G1552，学会G1114G14406G7643G8873G16847电阻的阻G1552。使G11004万G11004G15932判G2047G7509G5627电容的G7509G5627，和三G7509管的BG7509、CG7509、EG7509。G18039次G9950一G3371万G11004板，G7171我G12544一次G6521触电G9950G19093，动G6175去G9950东西，尽管G9950的板G5194不G7171特G2047漂亮，但G17836G7171挺G7389G6116就感的。G7424G1166G6521触G1114使G11004铜线，然后使G11004G9901G19093G9950铜线到万G11004板G990。学习G1114一G1022软件PROTELDXP2004软件，从零开始学习PROTELDXP2004。G17836G16772得画原理图，就G7171画G1114G18039G1022双音门铃的原理图，一G1022一G1022软件地找元件，G7389时G17836找不到某G1135元件，到后G7481G11705G17959G1114怎么样可以找到就G7171通过自己画出G7481就可以G1114。G6521G11540G7171学习G1114画元件，当时画G11142G1022电阻，2G1022电容，2G1022G7509G5627电容，2G1022三G7509管，G17836创建G1114属于自己的元件库。G6521G11540G7171画PCB图，G6238之前画的G18039G1022双音门铃的原理图转变G6116PCB图。再后G7481就画G1114PCB元件，画G11142G1022电阻，2G1022电容，2G1022G7509G5627电容，2G1022三G7509管，G17836创建G1114属于自己的PCB元件库。G6521到G1114铜板时，真的挺兴奋的，G11004砂纸很G11004力地G6238铜板擦亮，然后G6238印G7389双音门铃的油纸和铜板黏在一起，过G1114一G1022机器就G6238油纸G990的碳印到到G1114铜板G990，G6521G11540使G11004氯化G19093G6238铜去掉，只剩下双音门铃的电路图，G6521G11540使G11004砂纸，在水龙头下G6238铜板G990的碳去掉，只剩下电路图的铜，G6521G11540G7171钻孔，使G11004的G7171一G1022钻孔机，G6238铜板G990的电路图的孔都钻空，G6521G11540G6238电阻3G1022，电G16311电容2G1022，G10955G10267电容2G1022，G7509G5627电容2G1022，NE555NG14467G102671G3371，电G1313器1G1022，按G192021G1022，G6566G190362G1022G9950到电路板G990，G18039G1022双音门铃就制作出G7481G1114。虚焊、开路、短路检测A1A0A2A3A4A5A6A7A8A9A10A11A8A9A13A14A4A10A12A13A16A15A17A18A17A4A19A20A21A22A23A14A24A4A25A26A27A28A13A30A29A31A32A8A34A35A5A34A36A5A33A37A38A40A32A8A8A39A20A8A41A42A4A43A44A45A46A47A4A48A49A9A50A51A52A54A20A40A55A53A57A19A56A58A59A13A8A39A58A20A60A61A62A13A64A60A63A65A66A67A68A8A41A58A13A44A45A46A47A42A8A41A63A65A49A9A69A40A32A8A50A71A15A70A72A8A9A73A20A8A9A74A75A51A76A13A78A73A8A9A77A79A80A27A51A69A46A81A20A40A35A5A50A70A72A8A9A20A82A83A13A85A86A84A82A87A51A88A89A49A20A8A39A42A8A39A34A8A39A42A90A91A78A73A90A91A42A90A91A92A8A60A49A9A68A93A94A81A40PCBA96A95A97A98A99A100A101A102A103A104A105A106A107A108A109A110A111A96A112A104A113A114A115A116A117A118A119A120A104A121A122A107A123A124A114A111A120A111A125A126A127A110A111A96A112A104A120A111A128A129A111A128A130A117A125A126A107A131A132A133A134A102A110A135A104A136A137A138A139A140A141A142A119A1271A143A144A145A146A144A147A148A149A145A146A150A151A152A153A154A155A156A157A158A159A160A161A162A163A152A164A165A166A167A152A168A158A169A170A171A172A173A174A175A176A177A178A179A180A181A182A183A184A185A186A187A179A180JPA1741A188A174A189A190A191A192A193A189A181A194A172A173A195A196A175A176A177A174A197A198A199A177A182RA2001A201A202RA20010A177A187A203A204A181A171A205A206A173A207A208A182A184A209A174A210A173A207A211A212JPA1741A188A213A174A189A214A201A202A215A216A174A217A207A218A188A213A187A219A220A205A221A173A207A212A196A2221A188A223A224A174A225A226A213A181A227A228A229A187A172A230A216A2310A181A182A232A172A173A233A207A234A195A235A1960A174A236A237A187A238A239A193A189A201A202A240A225A241A226A181A242A215A189A190A243A244A245A246A189A212A1812A247A248A249A250A249A251A252A249A250A249A251A253A254A255A115A0A1A2A3A13A18A2A4A5A6A7A8A13A53A9A10A11A255A12A14A255A1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