高頻仿真實(shí)驗(yàn)報告(實(shí)驗(yàn)二)

#高頻仿真實(shí)驗(yàn)報告（實(shí)驗(yàn)二）吳佳芮電信六班1190一.電感三端式正弦波振蕩器的仿真（一）題目要求圖的仿真要求：1）至5）（二）電路原理電感三點(diǎn)式振蕩器該振蕩器又稱為哈特萊振蕩器。類似于電容三點(diǎn)式振蕩器的分析方式，也可以求得電感三點(diǎn)式振蕩器的振幅起振條件和振蕩頻率，區(qū)別在于這里以自耦變壓器代替了電容耦合。（三）仿真電路（四）仿真結(jié)果、圖形1.直流工作點(diǎn)DCOperatingFointCircuitl(P129.4.3.5；DCOperatingPointv(3)器11-32D防1.G72571.023302.示波器數(shù)字頻率計(jì)=10nF時滬FreqCounter-XFCl158.977kHzSensrtivrtj.r{RMS)-TragerL^wsl"SlffjyCteftgeSignalCoripr^ssioriRat色Sensrtivrtj.r{RMS)-TragerL^wsl"SlffjyCteftgeSignalCoripr^ssioriRat色二.電容三端式正弦波振蕩器的仿真（一）.題目要求圖的仿真要求：1）至4）（二）仿真電路C4□:55510nPC4□:55510nPFL5FL5-■■■5.1kL::“?:C5二；：「口…半価pF-?:L=伽只::A::::（三）仿真結(jié)果、圖形1.靜態(tài)工作點(diǎn)Circuit1(P130?43,6)

DCOperatingPointDCOperatingPaint廠2V<1)TV-I1D}B2D.3D&4Bm348.614&4m2.虛擬示波器和數(shù)字頻率計(jì)￡imulatepSensitivityfRMS}V0rc-tII磅OscilloEFr^qCounter-XFCl￡h3nr：ii_BRevsiseCftarnslAS&cfe[fi-C-'VS-D15-15V/DiwXpositioiip?Vposition[o_Iy/TMd|E/a|a/b|AGI0SoafepV/DivXpe&itionpSavaExt.Tri^erLevel|qTypa；Sing.緲,]再N*呼|TrgjsrE-3ge[Ta1F_b)E^t|Ck3RMl_AV2-362V2.K3VT2-T15.0>3ususTriggerL乞由="Co讓pli喝i連2MHz3血-Charts陰陽IComprebSionRateF3=20pF時C3=200pF時4.當(dāng)R3阻值增大，振蕩器的輸出波形轉(zhuǎn)變幅度大，頻率不穩(wěn)定，當(dāng)R3阻值減小,振蕩器的輸出波形轉(zhuǎn)變幅度小，頻率穩(wěn)定。原因：反饋系數(shù)與回路電容有關(guān)，若是用改變回路電容的方式來改變振蕩頻率，必將改變反饋系數(shù)，從而影響起振。三.克拉潑振蕩器的仿真（一）題目要求圖的仿真要求：1）至3）（二）仿真電路9jE5R50CBtOnFWk；G4■ZOpF€2Hl-1nFKey=D_Z62pFC2b2.2nE2H22Z2A7：：：:123XFC1（三）仿真結(jié)果、圖形1.直流工作點(diǎn)27JJI3jQSIHsaj心—JVuJ^jrI?J3一JII—JI1Circuit2（P130.4.3.7）DCOperatingPointDCOperatingPointV0OJ1&.2S117v（1）2.363451.737002.虛擬示波器和數(shù)字頻率計(jì)3.接入C2a接入C2b500.000ns&M.O5Drts+J?Tinhsbg^^^=ScaleIk?ra-DivGharw^L君

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