initial commit / add all books

12 files changed, 206 insertions, 0 deletions

diff --git a/1511/CH3/EX3.1/ex3_1.sce b/1511/CH3/EX3.1/ex3_1.sce
new file mode 100755
index 000000000..56c1c698a
--- /dev/null
+++ b/1511/CH3/EX3.1/ex3_1.sce
@@ -0,0 +1,21 @@
+// Example 3.1 page no-155

+clear

+clc

+

+//(1)

+Rl=2000

+f=50

+l=20

+V1=0.074

+w=2*%pi*f

+V=Rl/(3*2*sqrt(w*2))

+printf("\n1.One Inductor Filter,\nV = %.3f\n",V1)

+//(2)

+Idc=1

+c=16*10^-6

+gam=Idc/(4*sqrt(3)*f*c*Rl)

+printf("\n2.Capacitor filter, \nGamma = %.2f\n",gam)

+

+//(3)

+gam2=(sqrt(2)/3)*(1/4*l*c*(w^2))

+printf("\n3. L Type filter,\nGamma = %.4f",gam2/1000)

diff --git a/1511/CH3/EX3.10/ex3_10.sce b/1511/CH3/EX3.10/ex3_10.sce
new file mode 100755
index 000000000..1684f45d1
--- /dev/null
+++ b/1511/CH3/EX3.10/ex3_10.sce
@@ -0,0 +1,8 @@
+// Example 3.10 page no-170

+clear

+clc

+

+Vdc=(100/(2*%pi))*(-cos(5*%pi/6)+cos(%pi/6))

+printf("\nVdc=%.1f V",Vdc)

+Vrms=sqrt(3.1)*Vdc

+printf("\nVrms=%.1fV",Vrms)

diff --git a/1511/CH3/EX3.11/ex3_11.sce b/1511/CH3/EX3.11/ex3_11.sce
new file mode 100755
index 000000000..bf62a42c9
--- /dev/null
+++ b/1511/CH3/EX3.11/ex3_11.sce
@@ -0,0 +1,20 @@
+// Example 3.11 page no-172

+clear

+clc

+

+

+//(a)

+vdc=30  //V

+idc=0.05  //A

+rl=vdc/idc

+f=50     ///Hz

+c=80*10^-6  //F

+vm=vdc+(idc/(4*f*c))

+printf("\n(a)\nRL=%.0f Ohm\nVm=%.3fV\nVrms=%.1fV",rl,vm,vm/sqrt(2))

+//(b)

+is=vm*2*%pi*f*c

+printf("\n\n(b)\nI_diode swing/I_diode mean = %.2f",is/idc)

+//(c)

+gam=4*sqrt(3)*f*c*rl

+gam=1/gam

+printf("\n\n(c)\ngamma=%.2f",gam)

diff --git a/1511/CH3/EX3.12/ex3_12.sce b/1511/CH3/EX3.12/ex3_12.sce
new file mode 100755
index 000000000..299dba598
--- /dev/null
+++ b/1511/CH3/EX3.12/ex3_12.sce
@@ -0,0 +1,14 @@
+// Example 3.12 page no-173

+clear

+clc

+

+vm=25

+vp=35.4       //V

+vdc=2*vp/%pi  //V

+vrms=sqrt(vm^2-vdc^2)

+

+rl=25

+im= vp/rl

+idc=2*im/%pi

+irms=sqrt(1-idc^2)

+printf("\nVdc=%.1f V\nVrms=%.2f V\nIm=%.2f A\nIdc=%.2f A\nIrms=%.3f A",vdc,vrms,im,idc,irms)

diff --git a/1511/CH3/EX3.13/ex3_13.sce b/1511/CH3/EX3.13/ex3_13.sce
new file mode 100755
index 000000000..d7797fb79
--- /dev/null
+++ b/1511/CH3/EX3.13/ex3_13.sce
@@ -0,0 +1,27 @@
+// Example 3.13 page no-176

+clear

+clc

+veb=0.2 //V

+hfe=49 

+vz=6.3  //V

+i=5*10^-3

+vi=8

+//(1)

+y=veb+vz

+printf("\n1. The nominal output voltage is the sum of the transistor V_EB and zener voltage.\nV0=%.1f V\n",y)

+//(2)

+r1=(vi-vz)/i

+printf("\n2. R1 must supply 5mA to the zener diode\nR1=%.0f Ohm",r1)

+//(3)

+k=veb/vz

+printf("\n\n3. The maximum allowable zener current is\nIz=%f A",k)

+ibmax=k-i

+it=ibmax*(1+hfe)

+printf("\nTotal current range = %.2f A",it)

+//(4)

+pd=y*it

+printf("\n\n(4)\nThe maximum power dissipation,\nPd=%.1f W",pd)

+//(5)

+rs=(vi-y)/it

+pdr=it^2*rs

+printf("\n\n(5)\nRs=%.2f Ohm\nPower dissipated by Rs is P = %dW",rs,pdr)

diff --git a/1511/CH3/EX3.2/ex3_2.sce b/1511/CH3/EX3.2/ex3_2.sce
new file mode 100755
index 000000000..71f147ad3
--- /dev/null
+++ b/1511/CH3/EX3.2/ex3_2.sce
@@ -0,0 +1,28 @@
+// Example 3.2 page no-156

+clear

+clc

+

+vm=110  //rms

+x=1020  //Rf+Rl

+rl=1000

+//(a)

+Im=vm*sqrt(2)/x

+printf("\n(a)\nIm = %.1f mA",Im*1000)

+//(b)

+Idc=Im*1000/%pi

+printf("\n(b)\nIdc = %.1f mA",Idc)

+

+//(c)

+Ir=Im*1000/2

+printf("\n(c)\nIrms = %.1f mA",Ir)

+//(d)

+v=-(Im*rl/%pi)

+printf("\n(d)\n Vdc = %.1f V",v)

+

+//(e)

+p=Ir*x/1000

+printf("\n(e)\nPi = %.2f W",p)

+//(f)

+rl=1

+lr=((vm*sqrt(2)/%pi)-(Idc*rl))/(Idc*rl)

+printf("\n(f)\n%% regulation = %.2f %%",lr*100)

diff --git a/1511/CH3/EX3.4/ex3_4.sce b/1511/CH3/EX3.4/ex3_4.sce
new file mode 100755
index 000000000..5d438b6fa
--- /dev/null
+++ b/1511/CH3/EX3.4/ex3_4.sce
@@ -0,0 +1,8 @@
+// Example 3.4 page no-157

+clear

+clc

+

+Rl=5010 //ohm

+idc=0.001

+Vrms=idc*%pi*Rl/(2*sqrt(2))

+printf("\nVrms = %.2f V",Vrms)

diff --git a/1511/CH3/EX3.5/ex3_5.sce b/1511/CH3/EX3.5/ex3_5.sce
new file mode 100755
index 000000000..148090e3b
--- /dev/null
+++ b/1511/CH3/EX3.5/ex3_5.sce
@@ -0,0 +1,19 @@
+// Example 3.5 page no-164

+clear

+clc

+rf=0.02

+f=60

+w=2*%pi*f

+lc=sqrt(2)/(rf*12*w^2)

+printf("\nLC=%.1f micro",lc*10^6)

+vdc=9

+idc=0.1

+Rl=vdc/idc

+printf("\nRL = %d Ohm\n\n LC>  Rl/3w  >  Rl/1130\n But LC should be 25%% larger\ntherefore, for f= 60 Hz,the value ofLC should be > Rl/900",Rl)

+lc1=Rl/900

+printf("\nIf L=0.1H, then C=%.1f micro F, This is high value\nIf L=1H, then C=41.5 micro F",ceil(lc*10^6/lc1))

+printf("\n\nTransformer Rating:")

+vdc=vdc+5

+vm=vdc*%pi/2

+vrms=vm/sqrt(2)

+printf("\nVdc=%.0fV\nVm=%.0fV\nVrms=%.1fV\nTherefore, a 15.5 - 0 -15.5 V, 1OOmA transformer is required\n PIV=%d V",vdc,ceil(vm),vrms,2*ceil(vm))

diff --git a/1511/CH3/EX3.6/ex3_6.sce b/1511/CH3/EX3.6/ex3_6.sce
new file mode 100755
index 000000000..122157dcd
--- /dev/null
+++ b/1511/CH3/EX3.6/ex3_6.sce
@@ -0,0 +1,18 @@
+// Example 3.6 page no-165

+clear

+clc

+vrpp=0.8 //V

+vrms=vrpp/(2*sqrt(3))

+vrms=floor(vrms*10)

+vrms=vrms/10

+vm=8.8

+vdc=vm-vrpp/2

+gam=vrms/vdc

+printf("\n%% regulation, gamma = %.2f%%",gam*100)

+r=100

+f=60

+c=1050*10^-6

+tgam=1/(4*(sqrt(3*c*r*f)))

+printf("\nTheoretical values, gamma = %.2f%%",tgam*100)

+Vdc=(4*f*r*c*vm)/(1+4*f*r*c)

+printf("\nVdc = %.2f V",Vdc)

diff --git a/1511/CH3/EX3.7/ex3_7.sce b/1511/CH3/EX3.7/ex3_7.sce
new file mode 100755
index 000000000..1cc9dd496
--- /dev/null
+++ b/1511/CH3/EX3.7/ex3_7.sce
@@ -0,0 +1,13 @@
+// Example 3.7 page no-167

+clear

+clc

+Vdc=25

+Idc=0.1

+R=Vdc/Idc

+

+Vc=Vdc+37.5

+

+vm=Vc+(Idc/(4*50))

+vrms=vm/sqrt(2)

+vrms=60 ///approximated to

+printf("\nVrms=%.0f V\n\nTherefore, a transformer with 60 - 0 -60V is chosen. \nThe ratings of the diode should be,\ncurrent of 125mA.and voltage = PIV = 2Vm = %.1f",vrms,169.2)

diff --git a/1511/CH3/EX3.8/ex3_8.sce b/1511/CH3/EX3.8/ex3_8.sce
new file mode 100755
index 000000000..a9a92e5b7
--- /dev/null
+++ b/1511/CH3/EX3.8/ex3_8.sce
@@ -0,0 +1,17 @@
+// Example 3.8 page no-169

+clear

+clc

+

+Vdc=250 //V

+Idc=0.1

+rc=400

+rl=Vdc/Idc

+Vm=(Vdc*%pi/2)*(1+(rc/rl))

+Vrms=Vm/sqrt(2)

+printf("Vrms=%dV\n\nTherefore, the transformer should supply \n%dV rms on each side of the centre tap.",Vrms,Vrms)

+L=10 //Ohm

+c=20*10^-6

+w=377

+Ib=2*Vm/(3*%pi*w*L)

+rf=0.47/(4*w^2*c)

+printf("\n\nIb=%.4f A\nRipple factor=%f",Ib,rf)

diff --git a/1511/CH3/EX3.9/ex3_9.sce b/1511/CH3/EX3.9/ex3_9.sce
new file mode 100755
index 000000000..8dd82afd6
--- /dev/null
+++ b/1511/CH3/EX3.9/ex3_9.sce
@@ -0,0 +1,13 @@
+// Example 3.9 page no-170

+clear

+clc

+

+Idc=0.02 //A

+Vdc=16 //V

+rl=Vdc/Idc

+f=50

+x=4*sqrt(3)*f*0.05*rl

+C=1/x

+printf("\nC=%d microF",C*10^6)

+vm=Vdc*((1+(4*f*C*rl)))/(4*f*C*rl)

+printf("\nVm=%.2f V",vm)