initial commit / add all books

10 files changed, 162 insertions, 0 deletions

diff --git a/3517/CH4/EX4.1/Ex4_1.sce b/3517/CH4/EX4.1/Ex4_1.sce
new file mode 100644
index 000000000..4e3d5b79b
--- /dev/null
+++ b/3517/CH4/EX4.1/Ex4_1.sce
@@ -0,0 +1,15 @@
+//Caption:Determine (a)hfe (b)hfe for changed resistor

+//Ex4.1

+clc;

+clear;

+close;

+Ib=0.2//Base current(in mA)

+Vcc=10//Collector voltage(in volts)

+Rc1=1//Collector resistor(in kilo ohm)

+Rc2=220//Changed collector resistor(in ohm)

+Ic1=Vcc/Rc1

+h1=Ic1/Ib

+disp(h1,'(a)hfe=')

+Ic2=Vcc*1000/Rc2

+h2=Ic2/Ib

+disp(h2,'(b)hfe for changed resistor=')
\ No newline at end of file
diff --git a/3517/CH4/EX4.10/Ex4_10.sce b/3517/CH4/EX4.10/Ex4_10.sce
new file mode 100644
index 000000000..539cc9119
--- /dev/null
+++ b/3517/CH4/EX4.10/Ex4_10.sce
@@ -0,0 +1,14 @@
+//Caption:Determine output voltage when (a)Device is cutoff (b)Device is switched on

+//Ex4.10

+clc;

+clear;

+close;

+Idf=0.25//Drain current at cutoff(in ns)

+rd=40//Drain resistance at switched on(in ohm)

+Vdd=15//Drain voltage(in volts)

+Rd=6.8//Drain resistance(in kilo ohm)

+Vo=Vdd-(Idf*Rd*10^(-6))

+disp(Vo,'Output voltage when device is cutoff(in volts)=')

+Id=Vdd/Rd

+Vo2=Id*rd

+disp(Vo2,'Output voltage when device is switched on(in milli volts)=')
\ No newline at end of file
diff --git a/3517/CH4/EX4.2/Ex4_2.sce b/3517/CH4/EX4.2/Ex4_2.sce
new file mode 100644
index 000000000..3e56cb765
--- /dev/null
+++ b/3517/CH4/EX4.2/Ex4_2.sce
@@ -0,0 +1,17 @@
+//Caption:Calculate the transistor power dissipation at (a)Cutoff (b)Saturation (c)When Vce is 2V

+//Ex4.2

+clc;

+clear;

+close;

+Vcc=10//Collector voltage(in volts)

+Ic=50//Collector current(in nA)

+Rc=1//Collector resistor(in kilo ohm)

+Vs=0.2//Voltage of collector emitter junction at saturation(in volts)

+Vce=2//Collector emitter voltage(in volts)

+P1=Ic*Vcc/1000

+disp(P1,'(a)Power dissipation at cutoff(in micro watt)=')

+P2=(Vcc/Rc)*Vs

+disp(P2,'(b)Power dissipation at saturation(in mW)=')

+I=(Vcc-Vce)/Rc

+P3=I*Vce

+disp(P3,'(c)Power dissipation at given Vce(in mW)=')
\ No newline at end of file
diff --git a/3517/CH4/EX4.3/Ex4_3.sce b/3517/CH4/EX4.3/Ex4_3.sce
new file mode 100644
index 000000000..e6af0b9ff
--- /dev/null
+++ b/3517/CH4/EX4.3/Ex4_3.sce
@@ -0,0 +1,18 @@
+//Caption:Calculate Vce (a)Before input pulse is applied (b)at end of delay time (c)at end of turn on time (d)Total time 

+//Ex4.3

+clc;

+clear;

+close;

+Vcc=12//Collector voltage(in volts)

+Rc=3.3//Collector resistor(in Kilo ohm)

+pw=5//Pulse width of input voltage(in micro sec)

+Ix=50//Collector cutoff current(in nA)

+t=250//Switch off time(nA)

+Vce=Vcc-(Ix*Rc*10^(-6))

+disp(Vce,'(a)Collector emitter voltage before input pulse is applied(in volts)=')

+Vce2=Vcc-(0.1*Vcc)

+disp(Vce2,'(b)Collector emittter voltage at end of delay time(in volts)=')

+Vce3=Vcc-(0.9*Vcc)

+disp(Vce3,'(c)Collector emitter voltage at end of turn on time(in volts)=')

+T=(t*10^(-3))+pw

+disp(T,'(d)Total time from commencement of input to transistor switch off(in micro sec)=')
\ No newline at end of file
diff --git a/3517/CH4/EX4.4/Ex4_4.sce b/3517/CH4/EX4.4/Ex4_4.sce
new file mode 100644
index 000000000..4f24441f7
--- /dev/null
+++ b/3517/CH4/EX4.4/Ex4_4.sce
@@ -0,0 +1,13 @@
+//Caption:Determine (a)Capacitance that can give max turn on time (b)Max frequency

+//Ex4.4

+clc;

+clear;

+close;

+Rs=600//Source resistor(in ohm)

+Rb=5.6//Base resistor(in kilo ohm)

+t=70//Turn on time(in ns)

+C=t*1000/(0.1*Rs)

+disp(C,'(a)Required capacitance(in pF)=')

+tre=2.3*Rb*C*10^(-3)

+f=1000/(2*tre)

+disp(f,'(b)Max Frequency(in Khz)=')
\ No newline at end of file
diff --git a/3517/CH4/EX4.5/Ex4_5.sce b/3517/CH4/EX4.5/Ex4_5.sce
new file mode 100644
index 000000000..96dfa4dcf
--- /dev/null
+++ b/3517/CH4/EX4.5/Ex4_5.sce
@@ -0,0 +1,15 @@
+//Caption:Calculate Rc and Rb

+//Ex4.5

+clc;

+clear;

+close;

+Vcc=12//Collector voltage(in volts)

+V=3//Input voltage(in volts)

+Ic=1//collector current(in mA)

+Vce=0.2//Saturated collector emitter voltage(in volts)

+hfe=70

+Vbe=0.7//Base emitter voltage(in volts)

+Rc=(Vcc-Vce)/Ic

+Ib=Ic*1000/hfe

+Rb=(V-Vbe)*1000/Ib

+disp(Rb,Rc,'Rc and Rb(in kilo ohm)=')
\ No newline at end of file
diff --git a/3517/CH4/EX4.6/Ex4_6.sce b/3517/CH4/EX4.6/Ex4_6.sce
new file mode 100644
index 000000000..46a2f3a2d
--- /dev/null
+++ b/3517/CH4/EX4.6/Ex4_6.sce
@@ -0,0 +1,10 @@
+//Caption:Determine maximum value of capacitor

+//Ex4.6

+clc;

+clear;

+close;

+f=45//Frequency(in khz)

+Rb=150//Base Resistor(in ohms)

+t=1000/(2*f)

+C=t*1000/(2.3*Rb)

+disp(C,'Maxixmumvalue of capacitor(in pF)=')
\ No newline at end of file
diff --git a/3517/CH4/EX4.7/Ex4_7.sce b/3517/CH4/EX4.7/Ex4_7.sce
new file mode 100644
index 000000000..3de515299
--- /dev/null
+++ b/3517/CH4/EX4.7/Ex4_7.sce
@@ -0,0 +1,20 @@
+//Caption:Design a transistor by determining Rc,Rb and amplitude of output waveform

+//Ex4.7

+clc;

+clear;

+close;

+E=10//Input voltage(in volts)

+Vcc=15//Collector voltage(in volts)

+R=100//Load resistance(in kilo ohm)

+Vce=0.2//Saturted collector emitter voltage(in volts)

+Vd=0.7//Diode forward voltage(in volts)

+hfe=35

+Vbe=0.7//Base emitter voltage(in volts)

+Rc=R/10

+Ic=(Vcc-Vce-Vd)/Rc

+Ib=Ic/hfe

+Rb=(E-Vbe-Vd)/Ib

+Vmin=Vd+Vce

+Vmax=(Vcc*R)/(R+Rc)

+Vo=Vmax-Vmin

+disp(Vo,Rb,Rc,'Rc,Rb(in kilo ohm),and amplitude of output waveform(in volts)=')
\ No newline at end of file
diff --git a/3517/CH4/EX4.8/Ex4_8.sce b/3517/CH4/EX4.8/Ex4_8.sce
new file mode 100644
index 000000000..a122d419a
--- /dev/null
+++ b/3517/CH4/EX4.8/Ex4_8.sce
@@ -0,0 +1,19 @@
+//Caption:Calculate Rc,Rb,and Cc

+//Ex4.8

+clc;

+clear;

+close;

+Vcc=10//Collector voltage(in volts)

+Vce=0.2//Saturated collector emitter voltage(in volts)

+Ic=10//Collector current(in mA)

+Vbe=0.7//Base emitter voltage(in volts)

+hfe=100

+Pw=1//Pulse width(in ms)

+Vi=4//Input voltage(in volts)

+Rc=(Vcc-Vce)*1000/Ic

+Ib=Ic*1000/hfe

+Rb=(Vcc-Vbe)*1000/Ib

+Vb=Vi-Vbe-0.5

+I=(Vcc+Vi)/Rb

+Cc=I*Pw/Vb

+disp(Cc,Rb,Rc,'Rc(in ohm),Rb(in kilo ohm),Cc(in micro farad)=')
\ No newline at end of file
diff --git a/3517/CH4/EX4.9/Ex4_9.sce b/3517/CH4/EX4.9/Ex4_9.sce
new file mode 100644
index 000000000..4125b5f06
--- /dev/null
+++ b/3517/CH4/EX4.9/Ex4_9.sce
@@ -0,0 +1,21 @@
+//Caption:Determine required capacitance

+//Ex4.9

+clc;

+clear;

+close;

+E=4//Input voltage(in volts)

+Pw=1//Pulse width(in ms)

+Rs=1//Source resistance(in kilo ohm)

+Vce=0.2//Saturated Collector emitter voltage(in volts)

+Rc=1//Collector resistance(in kilo ohm)

+Vcc=10//Collector voltage(in volts)

+hfe=100

+Vbe=0.7//Base emitter voltage(in volts)

+Rb=10//Base resistance(in kilo ohm)

+Ic=(Vcc-Vce)/Rc

+Ib=Ic*1000/hfe

+Irb=Vbe*1000/Rb

+ic=Ib+Irb

+I=(E-Vbe)/Rs

+C=Pw/(Rs*(log(I*1000/ic)))

+disp(C,'Required capacitance(in micro farad)=')
\ No newline at end of file