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// find Q point
// Electronic Principles
// By Albert Malvino , David Bates
// Seventh Edition
// The McGraw-Hill Companies
// Example 13-8, page 440
clear; clc; close;
// Given data
Vdd=30;// in volts
Rd=1*10^3;// drain resistance in ohms
Rs=2*10^3;// source resistance in ohms
// Calculations
// 3:1 voltage divider produces a gate voltage of 10 Volts
Vs=10;// voltage across source resistor in volts
Id=Vs/Rs;// drain current in amperes
Vd=Vdd-(Id*Rd);// drain voltage in volts
Vds=Vd-Vs;// drain-source voltage in volts
disp("Amperes",Id,"Drain current=")
disp("Volts",Vds,"Drain-source Voltage=")
// Result
// Q point is (15,5*10^-3)
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