initial commit / add all books

5 files changed, 68 insertions, 0 deletions

diff --git a/2582/CH2/EX2.1/Ex2_1.sce b/2582/CH2/EX2.1/Ex2_1.sce
new file mode 100755
index 000000000..704aa26d2
--- /dev/null
+++ b/2582/CH2/EX2.1/Ex2_1.sce
@@ -0,0 +1,24 @@
+//Ex 2.1

+clc;clear;close;

+format('v',6)

+VCC=5;//V

+IS=10^-14;//A

+RS=39*1000;//ohm

+VBE12=0.7;//V(Assumed)

+VBE11=0.7;//V(Assumed)

+VEE=-5;//V

+IREF=(VCC-VBE12-VBE11-VEE)/RS*10^6;//micro A

+disp(IREF,"Estimated input reference current , IREF(micro A)");

+VT=25*10^-3;//V(Thermal Voltage)

+VBE=VT*log(IREF*10^-6/IS);//V

+IREF=(VCC-VBE-VBE-VEE)/RS*10^6;//micro A

+format('v',5)

+disp(IREF,"More precise value of reference current , IREF(micro A)");

+//Replacing Vcc by 15 V in the original design

+VCC2=15;//V

+VEE2=-15;//V

+IREF=(VCC2-VBE-VBE-VEE2)/RS*10^6;//micro A

+VBE=VT*log(IREF*10^-6/IS);//V

+R5=(VCC-VBE-VBE-VEE)/(IREF*10^-6);//ohm

+R5=round(R5/1000);//kohm

+disp(R5,"Value of R5(kohm) : ");

diff --git a/2582/CH2/EX2.2/Ex2_2.sce b/2582/CH2/EX2.2/Ex2_2.sce
new file mode 100755
index 000000000..52dab5182
--- /dev/null
+++ b/2582/CH2/EX2.2/Ex2_2.sce
@@ -0,0 +1,9 @@
+//Ex 2.2

+clc;clear;close;

+format('v',5);

+IC10=20*10^-6;//A

+IREF=0.5*10^-3;//A

+IS=10^-14;//A

+VT=25*10^-3;//V(Thermal Voltage)

+R4=VT/IC10*log(IREF/IC10);//ohm

+disp(R4/1000,"For Widlar current source design, the value of R4(kohm) : ");

diff --git a/2582/CH2/EX2.3/Ex2_3.sce b/2582/CH2/EX2.3/Ex2_3.sce
new file mode 100755
index 000000000..ff0548b8a
--- /dev/null
+++ b/2582/CH2/EX2.3/Ex2_3.sce
@@ -0,0 +1,14 @@
+//Ex 2.3

+clc;clear;close;

+format('v',5)

+Gm1=10;//mA/V

+Gm1=Gm1/1000;//A/V

+Cc=50;//pF

+Cc=Cc*10^-12;//F

+Rt=10^8;//ohm(Shunting resistance with Cc)

+Ao=Gm1*Rt;//unitless

+fp=1/(2*%pi*Rt*Cc);//Hz

+ft=Gm1/(2*%pi*Cc)/10^6;//MHz

+disp(fp,"Frequency at which gain is maximum, fp in Hz");

+disp(ft,"Unit gain frequency, ft(MHz)");

+//Bode plot can not be plotted with the given data in the question by using scilab functions. 

diff --git a/2582/CH2/EX2.4/Ex2_4.sce b/2582/CH2/EX2.4/Ex2_4.sce
new file mode 100755
index 000000000..82a1913f0
--- /dev/null
+++ b/2582/CH2/EX2.4/Ex2_4.sce
@@ -0,0 +1,10 @@
+//Ex 2.4

+clc;clear;close;

+format('v',6);

+SR=10/10^-6;//V/s

+Vout=10;//V(magnitude of output voltage)

+fm=SR/(2*%pi*Vout)/1000;//kHz

+disp(fm,"Full power bandwidth(kHz)");

+VT=25/1000;//V(Thermal voltage)

+ft=SR/(2*%pi*4*VT)/10^6;//MHz

+disp(ft,"Unity gain bandwidth(MHz)");

diff --git a/2582/CH2/EX2.5/Ex2_5.sce b/2582/CH2/EX2.5/Ex2_5.sce
new file mode 100755
index 000000000..3b2f91355
--- /dev/null
+++ b/2582/CH2/EX2.5/Ex2_5.sce
@@ -0,0 +1,11 @@
+//Ex 2.5

+clc;clear;close;

+VCC=5;//V

+VEE=-5;//V

+VBE=0.6;//V

+VCE23=0.6;//V

+VCE_sat=0.2;//V

+Vo_max=VCC-VCE_sat-VBE;//V

+Vo_min=VEE+VCE_sat+VBE+VCE23;//V

+disp(Vo_max,"Maximum output voltage(V)");

+disp(Vo_min,"Minimum output voltage(V)");