1496D□11496DDDDDDD1496DDDDDDDD1D1496DDDD□□□□□□1.DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD2.DDDDDDDDDDDD3.DDDDDDDDDDDDDDDDDDDD□□□□□□1.DDDDDDDDDDDD2.DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD3.DDDDDDDDDDDDDDDDDDDDDDDDDDD□□□□□□□□1.DDDDDD2.SP1461DDDDDDDDD3.DDDD4.TPE-GP4DDDDDDDDDDDDDDDDDDDDD□□□□□□□□DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDV-VDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD14DDDDVDVDDDDDDDDDDDDDDDDDDDDDDDDDDD56DDVDVDDDDDDVDVDDDDDDDDDDDDDDDDDV-V785614DDDDDDDDVDVODD56DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRp5001DDDDDjCp004D2-8V+12V80-iRp50022nu1496nnnnnnIIiF6IIMlDDDDDDDD2)DDDDDDP5001DDDD10mvDODD100KHzDDDDDDDDDDADBDDDDDV=0.1VDDDDDDAB1.DDDDDDDDD1)DDDDDDDDDDDDDDDDDDP5002DDDDD100mvDDDD1KHzDDDDDDDDRp5001DDDDDDDDDDDDDDDDDDDDDVDDDDDDDOUTDDDDDDDDABR5002DDDDDDDDDDDDDDDDDPDDDDDDDDV(t)=1sin2nD10.7D1031(:mV)DDDDDDDD(DDDDDDDDDDDDDDDDDDDDDDDDDDV=KVV(t)DDDDDKDDOABCODDD1DDDDDDDDDV=1.13vCD1V(mV)AB0.1070.2010.2970.4090.472V(mV)ODP-PD0.821.361.982.623.08K6.785.985.905.675.772.DDDDDDD1)DDR5002DV=0.1VDDDDDDDPAB106t(V)MUCICICIVs(t)二V$sin2nDP5002DDDV=30mVD100mVDDDDDDSD)DDDDDDDmDV=30mVSV=100mVSD-DD:992mVD-DD:576mVDDDm=26.5%2)DDDDV/V$(t)=100sin2nD103t(mV)DDR5002DDDDDDV(t叮叮m=30%Dm=100%PAMm=30%V=0.6mVABD-DD:832mVD-DD:720mVDDDm=7.2%DDDDDDDVDD2)DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDIN2DV(t)DDDDDDDDm=100%V=3mVAB3.DDDDDDDD1)DR5002DDDDDDDDDDDDDDDDINIUV(t)=10Sin2PCnD105t(mV)DDDDDDDDIN2DDDDDDDDDDDDDODD-DD:210mVDDD□□□□□□1.DDDDDDDDDDDDDDDDDDDDDDD2.DDDDDDDDDDDDDDDDDDDDDDDDD3.DDDDDDDDDDDDDDDDD□□□□□□1.DDDDDDDDDDDDDDD2.DDDDDDDDDDDDDDDDDDDDD□□□□□□□□1.DDDDD2.SP1461DDDDDDDD3.DDD4.TPE-GP4DDDDDDDDDDDDDDDDDDDDDDDDDDDD□□□□□DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD1.DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD1DDDDDDDDDD5006URCDDDDDDDDDDDDDDDDDDDDDDDDDDRDDDDDDDDDDDRCDDDDDDDDDDRCDDDDDDDDDDDDDDDDDDDRCDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD1DDDDDDDDDDDDDDD1j1—m2DD:mDDDDDDfoDDDDDDf0QmQDDDDDDDDDODDD5006DDDDDDDR5037DC5025DC5026DDDDDDDODDR5038DDRDDDDDDDDDDP5004C5028DR5039DRP5005DDDDDDDDDDDDRDRDDDDDDDDDDDDDDDDDP5004P5005DDDDDDDD调幅波信号的解调DDDDDDOUT2DDDDDDDDDDDRDDDDDDDDDP5004DDDDDDV(t)=10sin2nD105(t)(mV)UMM叮皿ODDDDDDDDD2(1)DDDDDDDDmD30%DDDDDDDDDDDDDDDDDDDDDOUT1DDDDDDDDDDDDDDDDD调幅波信号的解调DDDDDDDDDDDDDDDDDDDDDDDDDD30%调幅波信号的解调调幅波信号的解调调幅波信号的解调3(2)DDD调幅波信号的解调2.DDDDDDDDDDDDDD(l).DDDDDDDDDDDVDDDDDDDDDDDDDDDDDDDDDDDDDDDDAM调幅波信号的解调调幅波信号的解调DDDDDDDDDDDDDDDDDDDDDDD□□□□□□1.DDDDDDDDDDDDDDDDDD2.DDDDDDDDDDDDDDD3.DDDDDDDDDDDDDDDDDDDDDD□□□□□□1.DDDDDDDDDDDDDDDDDDDDDDDDDDDDDD2.DDDDDDDDDDDDDDDDDDDDDDDD□□□□□□□□DDDDDDDDDD6j+-CC6j（式中缩写为C7、C8、C11等）17811++—CCC7811C为C4007、C4008、C4011的串联等效电容回路振荡频率：f=式中：DDDDDDDDDDC=C(1+"j0VD式中：C0为变容管零偏时的结电容，VD为PN结的势垒电位差，Y为电容变化指数。设加在变容管两端电压u=VQ+UQsinQt，代入上式经简化后得C=C“(l+msinQt)-Yjj0cCVyC二—jo(V+V)yDQ表示u=VQ时的电容量，即无调制时的电容量。2.实验电路简介：图一是本实验电路的原理图。图中，V4001、C4012、C4008、C4006、C4007、D4001以及电感L4002构成了调频器的主振级，电路采用了西勒电容三点式振荡形式。其交流等效电路如图二所示。由图可见，变容二极管的结电容以部分接入的形式纳入在回路中。2兀［LC,E2兀....
