initial commit / add all books

11 files changed, 191 insertions, 0 deletions

diff --git a/1223/CH10/EX10.1/Ex10_1.sce b/1223/CH10/EX10.1/Ex10_1.sce
new file mode 100755
index 000000000..4c174d2c6
--- /dev/null
+++ b/1223/CH10/EX10.1/Ex10_1.sce
@@ -0,0 +1,12 @@
+clear;

+clc;

+//Example 10.1

+Vbe=0.6;//(V)

+b=100;

+V1=5;

+Io=200;//micro A

+Iref=Io*(1+2/b);

+printf('\nreference current=%.2f microA\n',Iref)

+Iref=Iref*0.001;//mA

+R1=(V1-Vbe)/Iref;

+printf('\nR1=%.2f KOhm\n',R1)

diff --git a/1223/CH10/EX10.10/Ex10_10.sce b/1223/CH10/EX10.10/Ex10_10.sce
new file mode 100755
index 000000000..a2d2fec50
--- /dev/null
+++ b/1223/CH10/EX10.10/Ex10_10.sce
@@ -0,0 +1,8 @@
+clear;

+clc;

+//Example 10.10

+Vt=0.026;

+Van=120;

+Vap=80;

+Av=-(1/Vt)/(1/Van+1/Vap);

+printf('\nsmall signal open circuit voltage gain=%.2f\n',Av)

diff --git a/1223/CH10/EX10.11/Ex10_11.sce b/1223/CH10/EX10.11/Ex10_11.sce
new file mode 100755
index 000000000..444556b97
--- /dev/null
+++ b/1223/CH10/EX10.11/Ex10_11.sce
@@ -0,0 +1,16 @@
+clear;

+clc;

+//Example 10.11

+Van=120;

+Vap=80;

+Vt=0.026;

+Ico=0.001;

+//Rl=infinity

+Av=-(1/Vt)/(1/Van+1/Vap);

+printf('\nsmall signal open circuit voltage gain=%.2f\n',Av)

+Rl=100;

+Av1=-(1/Vt)/(1/Van+1/Vap+1/Rl);

+printf('\nsmall signal open circuit voltage gain=%.2f\n',Av1)

+Rl=10;

+Av2=-(1/Vt)/(1/Van+1/Vap+1/Rl);

+printf('\nsmall signal open circuit voltage gain=%.2f\n',Av2)

diff --git a/1223/CH10/EX10.12/Ex10_12.sce b/1223/CH10/EX10.12/Ex10_12.sce
new file mode 100755
index 000000000..14e0efb72
--- /dev/null
+++ b/1223/CH10/EX10.12/Ex10_12.sce
@@ -0,0 +1,21 @@
+clear;

+clc;

+//Example 10.12

+//lambda=y

+yn=0.01;

+yp=0.01;

+Vtn=1;

+Kn=1;

+Iref=0.5;

+gm=2*sqrt(Kn*Iref);

+printf('\ntransconductance =%.2fmA/V\n',gm)

+go=yn*Iref;

+printf('\nsmall signal transistor conductance=%.4f mA/V\n',go)

+go2=go;

+//for Rl=infinity

+Av=-gm/(go+go2);

+printf('\nvoltage gain=%.2f \n',Av)

+Rl=100;//Kohm

+gl=0.01;

+Av=-gm/(go+gl+go2);

+printf('\nvoltage gain=%.2f \n',Av)

diff --git a/1223/CH10/EX10.2/Ex10_2.sce b/1223/CH10/EX10.2/Ex10_2.sce
new file mode 100755
index 000000000..92b033d02
--- /dev/null
+++ b/1223/CH10/EX10.2/Ex10_2.sce
@@ -0,0 +1,22 @@
+clear;

+clc;

+//Example 10.2

+V1=5;

+V2=-5;

+R1=9.3;

+b=50;

+Vbe=0.7;

+Va=80;

+Iref=(V1-Vbe-V2)/R1;

+printf('\nreference current =%.3fmA\n',Iref)

+Io=Iref/(1+2/b);

+printf('\noutput current=%.2fmA\n',Io)

+ro=Va/Io;

+printf('\nsmall signal output resistance=%.2f KOhm\n',ro)

+//dIo=dVce2/ro

+Vce2=0.7;

+dIo=(V1-Vce2)/ro;

+printf('\nchange in load current=%.3f mA\n',dIo)

+x=dIo/Io;

+x=x*100;

+printf('\npercent change in output current=%.2f \n',x)

diff --git a/1223/CH10/EX10.4/Ex10_4.sce b/1223/CH10/EX10.4/Ex10_4.sce
new file mode 100755
index 000000000..f84c1ace2
--- /dev/null
+++ b/1223/CH10/EX10.4/Ex10_4.sce
@@ -0,0 +1,15 @@
+clear;

+clc;

+//Example 10.4

+Iref=1;

+Io=12*10^-3;

+V1=5;

+V2=-5;

+Vt=0.026;

+Vbe=0.7;

+R1=(V1-Vbe-V2)/Iref;

+printf('\nResistance R1 =%.2fKOhm\n',R1)

+Re=(Vt/Io)*log(Iref/Io);

+printf('\nResistance Re =%.2fKOhm\n',Re)

+Vbe=Io*Re;

+printf('\ndifference between two B-E voltages=%.2f V\n',Vbe)

diff --git a/1223/CH10/EX10.5/Ex10_5.sce b/1223/CH10/EX10.5/Ex10_5.sce
new file mode 100755
index 000000000..5c135fb1d
--- /dev/null
+++ b/1223/CH10/EX10.5/Ex10_5.sce
@@ -0,0 +1,28 @@
+clear;

+clc;

+//Example 10.5

+V1=5;

+V2=-5;

+R1=9.3;

+Re=9.580;

+Vt=0.026;

+b=100;

+Vbe=0.7;

+Va=80;

+Io=12;

+ro2=Va/Io;

+printf('\nsmall signal collector resistance=%.2f MOhm\n',ro2)

+Io=12*0.001;//mA

+gm2=Io/Vt;

+printf('\ntransconductance=%.3f mA/V\n',gm2)

+r=b*Vt/Io;

+printf('\nResistance=%.2f KOhm\n',r)

+Ro=ro2*(1+gm2*Re*r/(Re+r));

+printf('\noutput resistance=%.2f MOhm\n',Ro)

+dVc2=4;

+dIo=dVc2/Ro;

+printf('\nchange in load current=%.3f microA\n',dIo)

+Io=12;//micro A

+x=dIo/Io;

+x=x*100;

+printf('\npercent change in output current =%.4f\n',x)

diff --git a/1223/CH10/EX10.6/Ex10_6.sce b/1223/CH10/EX10.6/Ex10_6.sce
new file mode 100755
index 000000000..da5f5b74a
--- /dev/null
+++ b/1223/CH10/EX10.6/Ex10_6.sce
@@ -0,0 +1,14 @@
+clear;

+clc;

+//Example 10.6

+V1=5;

+V2=-5;

+Vbe=0.6;

+Veb=0.6;

+Iq2=400*10^-3;//mA

+Iref=200*10^-3;//mA

+Iq1=Iref;

+Iq3=Iq1;

+Iq4=600*10^-6;

+R1=(V1-Veb-Vbe-V2)/Iref;

+printf('\nResistance R1=%.f KOhm\n',R1)

diff --git a/1223/CH10/EX10.7/Ex10_7.sce b/1223/CH10/EX10.7/Ex10_7.sce
new file mode 100755
index 000000000..4e54e8eae
--- /dev/null
+++ b/1223/CH10/EX10.7/Ex10_7.sce
@@ -0,0 +1,21 @@
+clear;

+clc;

+//Example 10.7

+//uox*Cox/2=x

+x=20*10^-6;//A/V^2

+Vtn=1;

+V1=5;

+V2=0;

+Iref=0.25*10^-3;

+Io=0.1*10^-3;

+Vgs2=1.85;

+//let y=W/L

+y2=Io/(x*(Vgs2-Vtn)^2);

+printf('\nwidth per length 2=%.2f\n',y2)

+y1=Iref/(x*(Vgs2-Vtn)^2);

+printf('\nwidth per length 1=%.2f\n',y1)

+Vgs1=Vgs2;

+Vgs3=V1-V2-Vgs1;

+printf('\nVgs3=%.2f V\n',Vgs3)

+y3=Iref/(x*(Vgs3-Vtn)^2);

+printf('\nwidth per length 3=%.2f\n',y3)

diff --git a/1223/CH10/EX10.8/Ex10_8.sce b/1223/CH10/EX10.8/Ex10_8.sce
new file mode 100755
index 000000000..3e84383c5
--- /dev/null
+++ b/1223/CH10/EX10.8/Ex10_8.sce
@@ -0,0 +1,14 @@
+clear;

+clc;

+//Example 10.8

+Iref=100;

+Io=Iref;

+//lambda=y

+y=0.01;

+gm=0.5*10^+3;

+ro=1/(y*Iref);

+printf('\noutput resistance=%.2f MOhm\n',ro)

+ro2=1;

+ro4=1;

+Ro=ro4+ro2*(1+gm*ro4);

+printf('\noutput resistance of cascode circuit=%.2f MOhm\n',Ro)

diff --git a/1223/CH10/EX10.9/Ex10_9.sce b/1223/CH10/EX10.9/Ex10_9.sce
new file mode 100755
index 000000000..070731e28
--- /dev/null
+++ b/1223/CH10/EX10.9/Ex10_9.sce
@@ -0,0 +1,20 @@
+clear;

+clc;

+//Example 10.9

+Idss1=2;

+Idss2=1;

+Vp1=-1.5;

+Vp2=Vp1;

+//lambda=y

+y1=0.05;

+y2=y1;

+V2=-5;

+Vds=1.5;

+Vsmin=Vds+V2;

+printf('\nminimum value of Vs=%.2f V\n',Vsmin)

+Io=Idss2*(1+y1*Vds);

+printf('\noutput current=%.2f mA\n',Io)

+Vgs1=(1-sqrt(Io/Idss1))*Vp1;

+printf('\ngate to source voltage of Q1=%.2f V\n',Vgs1)

+V1=Vgs1+Vsmin;

+printf('\nV1=%.2f V\n',V1)