initial commit / add all books

6 files changed, 103 insertions, 0 deletions

diff --git a/887/CH10/EX10.1/10_1.sce b/887/CH10/EX10.1/10_1.sce
new file mode 100755
index 000000000..d0225e771
--- /dev/null
+++ b/887/CH10/EX10.1/10_1.sce
@@ -0,0 +1,19 @@
+clc

+//ex10.1

+V_ss=2;

+R=1*10^3;

+V_D=[0:0.001:2];

+plot(V_D,10^3*(V_ss-V_D)/R)

+xtitle('load line plot','voltage in volts','current in milli-amperes')      //milli-10^-3

+//we use the equation V_ss=R*i_D+V_D

+//at point B

+i_D=V_ss/R;      //as V_D=0

+//at point A

+V_D=V_ss;      //as i_D=0

+//now we see intersection of load line with characteristic and we get following at operating point

+V_DQ=0.7;      //voltage

+I_DQ=1.3*10^-3;      //current

+//diode characteristic cannot be plotted

+disp(V_DQ,'diode voltage at operating point in volts')

+disp(I_DQ*10^3,'current at opeating point in milli-amperes')      //milli-10^-3

+

diff --git a/887/CH10/EX10.2/10_2.sce b/887/CH10/EX10.2/10_2.sce
new file mode 100755
index 000000000..a47d2ee46
--- /dev/null
+++ b/887/CH10/EX10.2/10_2.sce
@@ -0,0 +1,21 @@
+clc

+//ex10.2

+V_ss=10;

+R=10*10^3;

+V_D=[0:0.001:2];

+plot(V_D,10^3*(V_ss-V_D)/R)

+xtitle('load line plot','voltage in volts','current in milli-amperes')      //milli-10^-3

+//we use the equation V_ss=R*i_D+V_D

+//at point C

+i_D=V_ss/R;      //as V_D=0

+//now if we take i_D=0, we get V_D=10 which plots at a point far off the page

+//so we take the value on the right-hand edge of V-axis i.e.,V_D=2

+//at point D

+V_D=2;

+i_D=(V_ss-V_D)/R;

+//from the intersection of load line with characteristic

+V_DQ=0.68;

+I_DQ=0.93*10^-3;

+//diode characteristic cannot be plotted

+disp(V_DQ,'diode voltage at operating point in volts')

+disp(I_DQ*10^3,'current at opeating point in milli-amperes')      //milli-10^-3

diff --git a/887/CH10/EX10.3/10_3.sce b/887/CH10/EX10.3/10_3.sce
new file mode 100755
index 000000000..49a3c95f4
--- /dev/null
+++ b/887/CH10/EX10.3/10_3.sce
@@ -0,0 +1,16 @@
+clc

+//ex10.3

+R=1*10^3;

+//diode characteristic cannot be plotted

+//case a)V_ss=15

+V_ss=15;

+V_D=[-15:0.001:0];

+//from the intersection of load line and diode characteristic

+V_o=10;

+disp(V_o,'output voltage for Vss=15 in volts')

+//case b)V_ss=20

+V_ss=20;

+V_D=[-20:0.001:0];

+//from the intersection of load line and diode characteristic

+V_o=10.5;

+disp(V_o,'output voltage for Vss=20 in volts')

diff --git a/887/CH10/EX10.4/10_4.sce b/887/CH10/EX10.4/10_4.sce
new file mode 100755
index 000000000..2bf7453a3
--- /dev/null
+++ b/887/CH10/EX10.4/10_4.sce
@@ -0,0 +1,19 @@
+

+clc

+//ex10.4

+V_ss=24;

+R=1.2*10^3;

+R_L=6*10^3;

+//by grouping linear elements together on left side of diode

+V_T=V_ss*R_L/(R+R_L);      //thevenin voltage

+//zeroing sources 

+R_T=1/((1/R)+(1/R_L));      //thevenin resistance

+//load-line equation is V_T+R_T*i_D+V_D=0

+//locating the operating point

+V_D=-10;

+V_L=-V_D;      //load voltage

+I_s=(V_ss-V_L)/R;      //source current

+//diode characteristic cannot be plotted

+printf(" All the values in the textbook are approximated hence the values in this code differ from those of Textbook")

+disp(V_L,'load voltage in volts')

+disp(I_s,'source current in amperes')      //milli-10^-3

diff --git a/887/CH10/EX10.5/10_5.sce b/887/CH10/EX10.5/10_5.sce
new file mode 100755
index 000000000..83c419ec2
--- /dev/null
+++ b/887/CH10/EX10.5/10_5.sce
@@ -0,0 +1,18 @@
+clc

+//ex10.5

+V_1=10;

+V_2=3;

+R_1=4*10^3;

+R_2=6*10^3;

+//1)analysis by assuming D1 off and D2 on

+I_D_2=V_2/R_2;      //ohm's law

+//applying KVL

+V_D_1=7;      //contradiction to 'D1 is off'

+//this assumption is not correct

+

+//2)analysis by assuming D1 on and D2 off

+I_D_1=V_1/R_1;      //ohm's law

+//applying KVL

+V_D_2=-V_1+V_2+I_D_1*R_1;

+//we get V_D_2 which is consistent

+disp('correct assumption is D2 off and D1 on')

diff --git a/887/CH10/EX10.7/10_7.sce b/887/CH10/EX10.7/10_7.sce
new file mode 100755
index 000000000..2d31a9612
--- /dev/null
+++ b/887/CH10/EX10.7/10_7.sce
@@ -0,0 +1,10 @@
+clc

+//ex10.7

+V_1=3;

+R_1=20;

+//As given voltage source results in forward bias, we assume operating point is on line segment A

+//replacing diode with the equivalent circuit

+V_2=0.6;

+R_2=10;

+i_D=(V_1-V_2)/(R_1+R_2);      //KVL around the circuit

+disp(i_D*10^3,'current in the circuit in milli-amperes')      //milli-10^-3