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+//chapter 17

+//example 17.5

+//page 535

+clear all;

+clc ;

+//given

+f1=20;//lower cutoff frequency Hz

+R3=1.2;//kohm

+Rl=100;//ohm

+Vcc=30;

+//Xc2<<R3 at f1

+C2=1000/(2*%pi*f1*R3/10);

+printf("\nc2=%.1f microF,use standard value 75 microF",C2);

+XC4=Rl;

+C4=10^6/(2*%pi*f1*Rl);

+printf("\nc4=%.1f microF,use standard value 80 microF",C4);

+Ip=100;

+Vcemax=Vcc;

+Icmax=1.1*Ip;

+//dc ip power

+Pidc=(Vcc*0.35*Ip)/1000;

+Poac=0.5;

+Pr=(Pidc-Poac)*0.5;

+printf("\nTransistor specification are:\nPr=%.2f W,Vcemax=%d V,Icmax=%d mA",Pr,Vcemax,Icmax);