// chapter 1 // example 1.10 //page 34, figure 1.39 Xdc=100;Xac=100;// gain Vbe=0.7;Vee=12;Vcc=12;//given voltage in volts Re=8200;Rin=150;Rc=3300;// given resistance in ohm Hfe=100;Hie=1000;// given Icq=(Vee-Vbe)/(2*Re+(Rin/Xdc)) Vceq=Vcc+Vbe-Rc*Icq disp(Icq,Vceq)//operating point(volt,ampere) Aid=(Hfe*Rc)/(Rin+Hie);// voltage gain disp(Aid)// result Ri=2*(Rin+Hie)// input resistance disp(Ri)//in ohm Ro=Rc;// output resistance disp(Ro)//output resistance in ohm