initial commit / add all books

17 files changed, 337 insertions, 0 deletions

diff --git a/2609/CH6/EX6.1/Ex6_1.sce b/2609/CH6/EX6.1/Ex6_1.sce
new file mode 100755
index 000000000..5c3cc9e30
--- /dev/null
+++ b/2609/CH6/EX6.1/Ex6_1.sce
@@ -0,0 +1,27 @@
+//Ex 6.1

+clc;

+clear;

+close;

+format('v',6);

+f0=600;//Hz//Oscillating Frequency

+disp("Various design parameters are :-");

+C=0.05;//micro F//Chosen for the design

+disp(C,"Capacitance(micro F)");

+format('v',5);

+R=1/(2*%pi*f0*sqrt(6)*C*10^-6);//ohm

+R=R/1000;//kohm

+disp(R,"Resistance R(kohm)");

+disp("We can use R=2.2 kohm for design purpose.")

+//To avoid loading effect

+Ri=10*R;//kohm//Ri>=10*R

+Ri=ceil(Ri);//kohm

+disp(Ri,"Resistance Ri(kohm)");

+Rf=29*Ri;//kohm//Rf>=29*Ri

+disp(Rf,"Resistance Rf(kohm)");

+disp("We can use Rf=640 kohm for design purpose.")

+Rf=640;//kohm

+//Balancing the circuit

+Rom=Rf*Ri/(Rf+Ri);//kohm

+Rom=ceil(Rom);//kohm

+format('v',6);

+disp(Rom,"Resistance Rom(kohm)");

diff --git a/2609/CH6/EX6.10/Ex6_10.sce b/2609/CH6/EX6.10/Ex6_10.sce
new file mode 100755
index 000000000..7337ccd9c
--- /dev/null
+++ b/2609/CH6/EX6.10/Ex6_10.sce
@@ -0,0 +1,19 @@
+//Ex 6.10

+clc;

+clear;

+close;

+format('v',6);

+f0=1;///kHz

+Vsat=14;//V

+disp("Various design parameters are :-");

+C1=0.05;//micro F//Chosen for the design

+disp(C1,"Capacitance(micro F)");

+Rf=1/(2*f0*10^3*C1*10^-6)/1000;//kohm

+disp(Rf,"Resistance Rf(kohm)");

+//R2=0.86*R1 and Rf=R1||R2

+R2byR1=0.86;//from R2=0.86*R1 

+R2=Rf*(1+R2byR1);//kohm

+R1=R2/R2byR1;//kohm

+disp(R1,"Resistance R1(kohm)");

+disp("Use R1=22 kohm for the design.");

+disp(R2,"Resistance R2(kohm)");

diff --git a/2609/CH6/EX6.11/Ex6_11.sce b/2609/CH6/EX6.11/Ex6_11.sce
new file mode 100755
index 000000000..e6fb3cffb
--- /dev/null
+++ b/2609/CH6/EX6.11/Ex6_11.sce
@@ -0,0 +1,13 @@
+//Ex 6.11

+clc;

+clear;

+close;

+format('v',6);

+T=10;//ms//(Time period)

+f0=1/(T*10^-3);//Hz

+C=0.05;//micro F//Chosen for the design

+//Formula : f0=1/{2*Rf*C*log(1+2*R2/R1)}

+Rf=1/(f0*2*C*10^-6*log(1+2))/1000;//kohm//By putting R1=R2 for this case

+Rf=round(Rf);//kohm

+disp(Rf,"Resistance Rf(kohm)");

+disp(C,"Capacitance for the design(micro F)");

diff --git a/2609/CH6/EX6.12/Ex6_12.sce b/2609/CH6/EX6.12/Ex6_12.sce
new file mode 100755
index 000000000..b0d83a3dc
--- /dev/null
+++ b/2609/CH6/EX6.12/Ex6_12.sce
@@ -0,0 +1,11 @@
+//Ex 6.12

+clc;

+clear;

+close;

+format('v',6);

+R1=4.7;//kohm

+R2=3.3;//kohm

+Rf=2;//kohm

+C=0.1;//micro F

+f0=1/2/(Rf*1000)/(C*10^-6)/log(1+2*R2/R1)/1000;//kHz

+disp(f0,"Frequency of output signal(kHz)");

diff --git a/2609/CH6/EX6.13/Ex6_13.sce b/2609/CH6/EX6.13/Ex6_13.sce
new file mode 100755
index 000000000..4dfb195ef
--- /dev/null
+++ b/2609/CH6/EX6.13/Ex6_13.sce
@@ -0,0 +1,19 @@
+//Ex 6.13

+clc;

+clear;

+close;

+format('v',6);

+f0=1.5;//kHz

+Vout=6;//V////peak to peak

+Vsat=13.5;//V

+disp("Various design parameters are : ");

+R2=10;//kohm///choosen for the design

+R1=R2*2*Vsat/Vout;//kohm

+disp(R1,"R1(kohm)");

+disp(R2,"R2(kohm)");

+disp("Use R1=50 kohm for the design");

+//Let Cf=0.05 micro F for the design

+Cf=0.05;//micro F

+disp(Cf,"Cf(micro F)");

+Ri=R1*1000/(f0*1000)/4/(Cf*10^-6*R2*1000)/1000;//kohm

+disp(Ri,"Ri(kohm)");

diff --git a/2609/CH6/EX6.14/Ex6_14.sce b/2609/CH6/EX6.14/Ex6_14.sce
new file mode 100755
index 000000000..a2ee02b49
--- /dev/null
+++ b/2609/CH6/EX6.14/Ex6_14.sce
@@ -0,0 +1,16 @@
+//Ex 6.14

+clc;

+clear;

+close;

+format('v',4);

+//Data given

+R1=6.8;//kohm

+Ri=100;//kohm

+R2=1.5;//kohm

+Cf=0.01;//micro F

+Vsat=14;//V

+Vo_pp=2*R2/R1*Vsat;//V////Peak to peak output of triangular wave

+disp(Vo_pp,"Peak to peak output of triangular wave(V)");

+format('v',5);

+f0=R1*1000/(4*Ri*10^3*Cf*10^-6*R2*10^3)/1000;//kHz//Oscillating Frequency

+disp(f0,"Oscillation frequency(Hz)");

diff --git a/2609/CH6/EX6.15/Ex6_15.sce b/2609/CH6/EX6.15/Ex6_15.sce
new file mode 100755
index 000000000..dac52471b
--- /dev/null
+++ b/2609/CH6/EX6.15/Ex6_15.sce
@@ -0,0 +1,20 @@
+//Ex 6.15

+clc;

+clear;

+close;

+format('v',4);

+//Data given

+f0=1;//kHz

+Vo_pp=7;//V

+Vsat=14;//V

+disp("Various design parameters are :-");

+//Let R2=10;//kohm for the design

+R2=10;//kohm

+R1=2*R2*Vsat/Vo_pp;//kohm

+disp(R1,"R1(kohm)");

+disp(R2,"R2(kohm)");

+//Choose Cf=0.1 micro F for the design

+Cf=0.1;//micro F

+disp(Cf,"Cf(micro F)");

+Ri=R1*10^3/(4*f0*10^3*Cf*10^-6*R2*10^3)/1000;//kohm

+disp(Ri,"Ri(kohm)");

diff --git a/2609/CH6/EX6.16/Ex6_16.sce b/2609/CH6/EX6.16/Ex6_16.sce
new file mode 100755
index 000000000..f0a3ed40a
--- /dev/null
+++ b/2609/CH6/EX6.16/Ex6_16.sce
@@ -0,0 +1,15 @@
+//Ex 6.16

+clc;

+clear;

+close;

+format('v',4);

+//Data given

+tau=1;//ms(time period)

+R1byR2=1.8:0.2:9;//range of R1/R2

+Beta_min=1/(1+min(R1byR2));//minimum value of Beta

+Beta_max=1/(1+max(R1byR2));//maximum value of Beta

+Tmax=2*tau*log((1+Beta_min)/(1-Beta_min));//ms////For minimum value of Beta

+fmin=1/(Tmax*10^-3);//Hz

+Tmin=2*tau*log((1+Beta_max)/(1-Beta_max));//ms////For maximum value of Beta

+fmax=1/(Tmin*10^-3)/1000;//kHz

+disp("Frequency range is "+string(fmin)+" Hz to "+string(fmax)+" kHz.");

diff --git a/2609/CH6/EX6.17/Ex6_17.sce b/2609/CH6/EX6.17/Ex6_17.sce
new file mode 100755
index 000000000..b30826e46
--- /dev/null
+++ b/2609/CH6/EX6.17/Ex6_17.sce
@@ -0,0 +1,15 @@
+//Ex 6.17

+clc;

+clear;

+close;

+format('v',4);

+//Data given

+Ls=3;//H

+Cs=0.05;//pF

+Rs=2;//kohm

+Cm=10;//pF

+fS=1/2/%pi/sqrt(Ls*Cs*10^-12)/1000;//kHz

+disp(fS,"Series resonant frequency(kHz)");

+CT=Cm*Cs/(Cm+Cs);//pF////Equivalent capacitance

+fP=1/2/%pi/sqrt(Ls*CT*10^-12)/1000;//kHz

+disp(fP,"Parallel resonant frequency(kHz)");

diff --git a/2609/CH6/EX6.18/Ex6_18.sce b/2609/CH6/EX6.18/Ex6_18.sce
new file mode 100755
index 000000000..6fc9919c0
--- /dev/null
+++ b/2609/CH6/EX6.18/Ex6_18.sce
@@ -0,0 +1,21 @@
+//Ex 6.18

+clc;

+clear;

+close;

+format('v',5);

+//Data given

+f0=5;//kHz

+D=60;//%////duty cycle

+VCC=12;//V

+//As D=t1/(t1+t2)

+t2BYt1=1/(D/100)-1;//ratio of t1 & t2

+//RB/(2*RA-RB)=t2/t1

+RAbyRB=(1/t2BYt1+1)/2;//Ratio of RA & RB

+disp("Various design parameters are :");

+//Let CT=0.05 micro F for this design choosing between 0.01 & 1 microo F

+CT=0.05;//micro F

+disp(CT,"CT(micro F)");

+RA=1/(f0*10^3)/(5/3)^2/(CT*10^-6)/1000;//kohm

+disp(RA,"RA(kohm)");

+RB=RA/RAbyRB;//kohm

+disp(RB,"RB(kohm)");

diff --git a/2609/CH6/EX6.19/Ex6_19.sce b/2609/CH6/EX6.19/Ex6_19.sce
new file mode 100755
index 000000000..e94fcb231
--- /dev/null
+++ b/2609/CH6/EX6.19/Ex6_19.sce
@@ -0,0 +1,46 @@
+//Ex 6.19

+clc;

+clear;

+close;

+format('v',6);

+//Data given

+Rf=15;//kohm

+RT1=4.7;//kohm

+R1=56;//kohm

+R2=6.8;//kohm

+R3=10;//kohm

+R4=1;//kohm

+R5=1;//kohm

+CB=1;//micro F

+CT=0.05;//mic

+VCC=15;//V

+V1=-15;//V////Voltage given through the resistance(R1) 56 kohm

+disp("Part (i)");

+Vin=2;//V

+Vo=Rf/R1*(-V1)-Rf/R2*Vin;//V

+disp(Vo,"Voltage Vo(V)");

+N_VCC=0;//V////-VCC////voltage given to the 12th pin of IC

+V7=N_VCC+3;//V

+disp(V7,"Voltage V7(V)");

+I=(V7-Vo)/RT1;//mA

+disp(I,"Current I(mA)");

+Rmult=R4*R5/(R4+R5)+R3;//kohm////on pin 3

+disp(Rmult,"Total resistance on pin 3, Rmult(kohm)");

+format('v',4);

+f0=0.32*I*10^-3/(CT*10^-6)/1000;//kHz

+disp(f0,"Oscillation frequency(kHz)");

+disp("Part (ii)");

+format('v',4);

+Vin=5;//V

+Vo=Rf/R1*(-V1)-Rf/R2*Vin;//V

+disp(Vo,"Voltage Vo(V)");

+N_VCC=0;//V////-VCC////voltage given to the 12th pin of IC

+V7=N_VCC+3;//V

+disp(V7,"Voltage V7(V)");

+I=(V7-Vo)/RT1;//mA

+format('v',6);

+disp(I,"Current I(mA)");

+Rmult=R4*R5/(R4+R5)+R3;//kohm////on pin 3

+disp(Rmult,"Total resistance on pin 3, Rmult(kohm)");

+f0=0.32*I*10^-3/(CT*10^-6)/1000;//kHz

+disp(f0,"Oscillation frequency(kHz)");

diff --git a/2609/CH6/EX6.3/Ex6_3.sce b/2609/CH6/EX6.3/Ex6_3.sce
new file mode 100755
index 000000000..50c251696
--- /dev/null
+++ b/2609/CH6/EX6.3/Ex6_3.sce
@@ -0,0 +1,20 @@
+//Ex 6.3

+clc;

+clear;

+close;

+format('v',5);

+f0=12;//kHz//Oscillating Frequency

+disp("Various design parameters are :-");

+C=0.01;//micro F//Chosen for the design between 0.01 & 1 micro F

+disp(C,"Capacitance(micro F)");

+R=1/(2*%pi*f0*1000*C*10^-6);//ohm

+R=R/1000;//kohm

+disp(R,"Resistance R(kohm)");

+format('v',5);

+Ri=3*R/2;//kohm//Ri>=3*R/2

+disp(Ri,"Resistance Ri(kohm)");

+disp("We can use Ri=2.2 kohm for design purpose.")

+Ri=2.2;//kohm

+Rf=2*Ri;//kohm

+disp(Rf,"Resistance Rf(kohm)");

+disp("We should use Rf=4.7 kohm for design purpose.")

diff --git a/2609/CH6/EX6.5/Ex6_5.sce b/2609/CH6/EX6.5/Ex6_5.sce
new file mode 100755
index 000000000..6d4288587
--- /dev/null
+++ b/2609/CH6/EX6.5/Ex6_5.sce
@@ -0,0 +1,20 @@
+//Ex 6.5

+clc;

+clear;

+close;

+format('v',5);

+f0=2;//kHz//Oscillating Frequency

+disp("Various design parameters are :-");

+C=0.05;//micro F//Chosen for the design

+disp(C,"Capacitance(micro F)");

+R=1/(2*%pi*f0*1000*C*10^-6);//ohm

+R=R/1000;//kohm

+disp(R,"Resistance R(kohm)");

+format('v',5);

+Ri=3*R/2;//kohm//Ri>=3*R/2

+format('v',4);

+disp(Ri,"Resistance Ri(kohm)");

+disp("We can use Ri=2.2 kohm for design purpose.")

+Rf=2*Ri;//kohm

+disp(Rf,"Resistance Rf(kohm)");

+disp("We should use 5k pot for Rf.")

diff --git a/2609/CH6/EX6.6/Ex6_6.sce b/2609/CH6/EX6.6/Ex6_6.sce
new file mode 100755
index 000000000..13009e2c7
--- /dev/null
+++ b/2609/CH6/EX6.6/Ex6_6.sce
@@ -0,0 +1,12 @@
+//Ex 6.6

+clc;

+clear;

+close;

+format('v',6);

+//Data given

+R1=1;//kohm

+R2=1;//kohm

+R=1;//kohm

+C=4.7;//micro F

+f0=1/(2*%pi*R*10^3*C*10^-6);//Hz//Oscillating Frequency

+disp(f0,"Oscillation frequency(Hz)");

diff --git a/2609/CH6/EX6.7/Ex6_7.sce b/2609/CH6/EX6.7/Ex6_7.sce
new file mode 100755
index 000000000..80cb41272
--- /dev/null
+++ b/2609/CH6/EX6.7/Ex6_7.sce
@@ -0,0 +1,20 @@
+//Ex 6.7

+clc;

+clear;

+close;

+format('v',5);

+f0=200;//Hz//Oscillating Frequency

+disp("Various design parameters are :-");

+C=0.05;//micro F//Chosen for the design

+disp(C,"Capacitance(micro F)");

+R=0.159/(f0*C*10^-6);//ohm

+R=R/1000;//kohm

+disp(R,"Resistance R(kohm)");

+disp("We should use R=510 kohm for the design.")

+R=510;//kohm

+C1=C;C2=C;C3=C;//micro F

+disp(C3,C2,C1,"Capacitance C1, C2 & C3(micro F)");

+R2=R;R3=R;//kohm

+disp(R3,R2,"Resistance R2, R3(kohm)");

+disp("1000k pot can be used.")

+//Answer for R is calculated wrong in the textbook.

diff --git a/2609/CH6/EX6.8/Ex6_8.sce b/2609/CH6/EX6.8/Ex6_8.sce
new file mode 100755
index 000000000..c225e8ad7
--- /dev/null
+++ b/2609/CH6/EX6.8/Ex6_8.sce
@@ -0,0 +1,12 @@
+//Ex 6.8

+clc;

+clear;

+close;

+format('v',5);

+Rf=570;//kohm

+Ri=15;//kohm

+A=Rf/Ri;//Gain of the circuit

+Amin=29;//Minimum Gain requirement of RC phase shift oscillator

+deltaA=(A-Amin)/Amin*100;//%(Exceeding Gain)

+disp(deltaA,"Gain is exceeded by(%) ");

+disp("It will cause distortion at output.");

diff --git a/2609/CH6/EX6.9/Ex6_9.sce b/2609/CH6/EX6.9/Ex6_9.sce
new file mode 100755
index 000000000..540e9f913
--- /dev/null
+++ b/2609/CH6/EX6.9/Ex6_9.sce
@@ -0,0 +1,31 @@
+//Ex 6.9

+clc;

+clear;

+close;

+format('v',6);

+disp("Part (a)");

+L1=25;//micro H

+L2=10;//micro H

+Rf=22;//kohm

+C=0.01;//micro F

+LT=L1+L2;//micro H

+fr=1/(2*%pi*sqrt(C*10^-6*LT*10^-6));//Hz

+fr=fr/1000;//kHz

+f0=fr;///kHz

+disp(f0,"Oscillation frequency(kHz)");

+Ri=Rf/(L1/L2);//kohm

+disp(Ri,"Resistance Ri(kohm)");

+disp("Part (b)");

+C1=220;//pF

+C2=680;//pF

+Rf=22;//kohm

+L=1;//mH

+CT=C1*C2/(C1+C2);//pF

+fr=1/(2*%pi*sqrt(L*10^-3*CT*10^-12));//Hz

+fr=fr/1000;//kHz

+f0=fr;///kHz

+f0=round(f0);//kHz

+disp(f0,"Oscillation frequency(kHz)");

+Ri=Rf/(C1/C2);//kohm

+disp(Ri,"Resistance Ri(kohm)");

+