高精度直流供电电源设计

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1、高精度直流供电电源设计题目：输入：220v/50hz,±10%输出：=±5V=1A性能：SV<50PPM≤50PPm/℃具有全功能保护（过热、过流、过压）一、仿真电路：图1仿真电路图二、仿真结果：图2输出压幅值图2中输出正负电压分别为+5.003v和-5.001v，且波动为0v。三、电路性能测试分析1、由图3输出电压功率谱可以看出直流分量大于0db，而交流分量约0-100hz为-40db，100hz以上为-60db以下。图3输出电压功率谱分析2、输出电压稳定性分析输入幅值/V输出正幅值/V输出负幅值/V2205.

2、003-5.0012005.003-5.0012405.003-5.001表1由上表测量值得当Ui=20V时U0<0.001v则Sv<0.001÷20÷5=10PPM四、原件对照报表参考标识描述系列封装0GROUNDPOWER_SOURCES-D1MDA3551FWBCASE309A-02C1160µFCAPACITOR-T1TS_POWER_10_TO_1TRANSFORMERXFMR_5PINC3160µFCAPACITOR-C4160µFCAPACITOR-C5160µFCAPACITOR-C1416µFC

3、APACITOR-C1616µFCAPACITOR-V1AC_POWERPOWER_SOURCES-C20.1µFCAPACITOR-T2TS_IDEALTRANSFORMER-C102200pFCAPACITOR-C112200pFCAPACITOR-C240.1µFCAPACITOR-U1LM317HVOLTAGE_REGULATORTO-39(H03A)U2LM337HVOLTAGE_REGULATORTO-39(H03A)C60.1µFCAPACITOR-C71µFCAPACITOR-C80.1µFCAP

4、ACITOR-C91µFCAPACITOR-R11.05kΩRESISTOR-C12160µFCAPACITOR-C13160µFCAPACITOR-R2348ΩRESISTOR-C1516µFCAPACITOR-C171nFCAPACITOR-C1816µFCAPACITOR-C1916µFCAPACITOR-C200.33µFCAPACITOR-C210.33µFCAPACITOR-U4LM337HVOLTAGE_REGULATORTO-39(H03A)C220.1µFCAPACITOR-C230.1µFCA

5、PACITOR-C261.6µFCAPACITOR-C271.6µFCAPACITOR-C251.6µFCAPACITOR-C281.6µFCAPACITOR-C291.6µFCAPACITOR-C301.6µFCAPACITOR-Q12N5365BJT_PNPTO-92U6TL431ACDVOLTAGE_REFERENCECASE751R3200ΩRESISTOR-R41.00kΩRESISTOR-Q22N5354BJT_PNPTO-92U7TL431ACDVOLTAGE_REFERENCECASE751R64

6、50ΩRESISTOR-R8205ΩRESISTOR-R7332ΩRESISTOR-R5453ΩRESISTOR-U3LM317HVOLTAGE_REGULATORTO-39(H03A)U5TL431ACDVOLTAGE_REFERENCECASE751U8TL431ACDVOLTAGE_REFERENCECASE751R9450ΩRESISTOR-