DXP2004实训报告

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1、实训报告科目：PCB设计与布板技术实训项目：班别：姓名：学号：系别：专业：指导老师：一、绘制电路图二、元器件参数对应封装选择及说明本次设计元器件的参数及封装如下：DescriptionDesignatorFootprintLibRefQuantityPolarizedCapacitor(Axial)C1CAPPR2-5x6.8CapPol21TypicalINFRAREDGaAsLEDDS1~D56CAPPR2-5x6.8LED01NPNBipolarTransistorQ1~Q8SFM-T3/A4.7VNPN1ResistorR1~R26AXIAL-0.4Res21Potentiome

2、terRP1VR5Rpot1Serial-InParallel-OutShiftRegisterU1DIP-14SN74LS164N1General-PurposeSingleBipolarTimerU2DIP-8NE555N1上表列出的是电路图所需要元器件的所有封装，其中C1和C3都选择了CAPPR2-5x6.8型号的封装，其他的电容封装都选择了RAD-0.1型号的封装，DS1到DS56都选择了CAPPR2-5x6.8型号的封装，这可以看出不同的元器件可以用相同的封装，对于各种元器件的封装，我们要选择恰当，才能更好的布局，元器件的封装的选择不仅影响布局而且还影响布线，从而影响整个PCB

3、板的设计，所以在选择封装时要慎重考虑好影响整个PCB板的主要因素，为制作良好的PCB板做铺垫。三、ERC与网络表ERC电路规则检查没有错误，所以整个电路图是没有错；网络表是检查电路图有没有封装和漏接线的工具，生成网络表如下图所示：[U2DIP-8NE555N][U1DIP-14SN74LS164N][RP1RP1RPot][R12AXIAL-0.4Res2][R11AXIAL-0.4Res2][R10AXIAL-0.4Res2][R9AXIAL-0.4Res2][R8AXIAL-0.4Res2][R7AXIAL-0.4Res2][R6AXIAL-0.4Res2][R5AXIAL-0.4R

4、es2][R4AXIAL-0.4Res2][R3AXIAL-0.4Res2][R2AXIAL-0.4Res2][R1AXIAL-0.4Res2][Q8SFM-T3/A4.7VNPN][Q7SFM-T3/A4.7VNPN][Q5SFM-T3/A4.7VNPN][Q4SFM-T3/A4.7VNPN][Q3SFM-T3/A4.7VNPN][Q2SFM-T3/A4.7VNPN][Q1SFM-T3/A4.7VNPN][DS56CAPPR2-5x6.8LED0][DS55CAPPR2-5x6.8LED0][DS54CAPPR2-5x6.8LED0][DS53CAPPR2-5x6.8LED0][DS5

5、2CAPPR2-5x6.8LED0][DS51CAPPR2-5x6.8LED0][DS50CAPPR2-5x6.8LED0][DS49CAPPR2-5x6.8LED0][DS48CAPPR2-5x6.8LED0][DS47CAPPR2-5x6.8LED0][DS46CAPPR2-5x6.8LED0][DS45CAPPR2-5x6.8LED0][DS44CAPPR2-5x6.8LED0][DS43CAPPR2-5x6.8LED0][DS42CAPPR2-5x6.8LED0][DS41CAPPR2-5x6.8LED0][DS40CAPPR2-5x6.8LED0][DS39CAPPR2-5x6

6、.8LED0][DS38CAPPR2-5x6.8LED0][DS37CAPPR2-5x6.8LED0][DS36CAPPR2-5x6.8LED0][DS35CAPPR2-5x6.8LED0][DS34CAPPR2-5x6.8LED0][DS33CAPPR2-5x6.8LED0][DS32CAPPR2-5x6.8LED0][DS31CAPPR2-5x6.8LED0][DS30CAPPR2-5x6.8LED0][DS29CAPPR2-5x6.8LED0][DS28CAPPR2-5x6.8LED0][DS27CAPPR2-5x6.8LED0][DS26CAPPR2-5x6.8LED0][DS2

7、5CAPPR2-5x6.8LED0][DS24CAPPR2-5x6.8LED0][DS23CAPPR2-5x6.8LED0][DS22CAPPR2-5x6.8LED0][DS21CAPPR2-5x6.8LED0][DS20CAPPR2-5x6.8LED0][DS19CAPPR2-5x6.8LED0][DS18CAPPR2-5x6.8LED0][DS17CAPPR2-5x6.8LED0][DS16CAPPR2-5x6.8LED0][D