clear; clc; //Caption: To find parameters of power amplifier using pnp gemanium transistor //Given Data B=100;//beta Ico=-5;//in mA Ic=-1;//in mA Vcc=40; Re=5;//in ohm Rc=10;//in ohm //Ic= BIb + (1+B)*Ico //Ic=B(Ib+Ico) Ib=-(Ic/B)+Ico; disp('mA',Ib,'Ib='); //Neglecting Vbe Rb=(5-Vcc)/(Ib*0.001); disp('ohm',Rb,'Rb='); Vce=Vcc-15; if(Vce>(Vcc/2)) S=(1+B)*(1+(Rb/Re))/(1+B+(Rb/Re)); disp(S,'Stability Factor is='); end A=-(Vcc+(2*Ic*(Re+Rc)))*(S)*(0.007*Ico*0.01); disp('degreeC/W',1/A,'theta='); //end