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+// Exa 10.4

+clc;

+clear;

+close;

+format('v',6)

+// Given data

+T= 500*10^-6;// in sec

+h_femin = 25;// unit less

+I_CEsat = 5;// in mA

+I_CEsat = I_CEsat * 10^-3;// in A

+V_CC = 10;// in V

+V_BB = 4;// in V

+V_CEsat = 0.4;// in V

+V_BEsat = 0.8;// in V

+V_BEoff = -1;// in V

+R_C2 = (V_CC-V_CEsat)/I_CEsat;// in ohm

+R_C1= R_C2;// in ohm

+disp(R_C1*10^-3,"The value of R_C1 in k ohm is");

+disp(R_C2*10^-3,"The value of R_C2 in k ohm is");

+I_B2min = I_CEsat/h_femin;// in A

+I_B2actual = 1.5*I_B2min;// in A

+R = (V_CC-V_BEsat)/(I_B2actual);// in ohm

+disp(R*10^-3,"The value of R in k ohm is");

+C= T/(0.693*R);// in F

+disp(C*10^6,"The value of C in µF is : ")

+R1= poly(0,'R1');

+R2= 2.143*R1;// in ohm

+// I_B1actual= (V_CC-V_BE1sat)/(R_C+R1) - (V_BE1sat+V_BB)/R2 and R2= 2.143*R1 so

+R1= I_B2actual*R2*(R1+R_C1)-V_CC*R2+V_BEsat*R2+R1*V_BEsat+R1*V_BB+R_C1*V_BEsat+R_C1*V_BB;

+R1= roots(R1);// in ohm

+R1= R1(1);// in ohm

+R1= R1*10^-3;// in kohm

+R2= 2.143*R1;// in k ohm

+disp(R1,"The value of R1 in kΩ is : ")

+disp(R2,"The value of R2 in kΩ is : ")

+R1= R1*10^3;// in ohm

+R1C1= 1*10^-6;// in F

+C1= R1C1/R1;// in F

+C1= C1*10^12;// in pF

+disp(C1,"The value of C1 in pF is : ")