// calculate output across load resistor // Electronic Principles // By Albert Malvino , David Bates // Seventh Edition // The McGraw-Hill Companies // Example 10-7, page 332 clear;clc; close; // Given data B=200; re_=22.7;// in ohms re=180;// in ohms R1=10*10^3;// in ohms R2=2.2*10^3;// in ohms Rc=3.6*10^3;// in ohms Vg=50*10^-3;// in volts Vcc=10;// in volts Rg=600;// internal resistance in ohms // Calculations rc=2.65*10^3;// in ohms zinbase=B*(re+re_);// input impedance of base in ohms zinstage_=(1/R1)+(1/R2)+(1/zinbase);// input impedance of base in ohms zinstage=zinstage_^-1 vin=(zinstage/(Rg+zinstage))*Vg;// input voltage in volts Av=rc/(re+re_);// voltage gain vout=Av*vin;// output voltage across load resistor in volts disp("Volts",vout,"Output voltage") // Results // output voltage across load resistor is 485 mVolts