From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 317/CH15/EX15.1/example1.sce | 23 +++++++++++++++++++++++ 317/CH15/EX15.1/example1.txt | 1 + 317/CH15/EX15.4/example4.sce | 25 +++++++++++++++++++++++++ 317/CH15/EX15.4/example4.txt | 2 ++ 317/CH15/EX15.5/example5.sce | 30 ++++++++++++++++++++++++++++++ 317/CH15/EX15.5/example5.txt | 2 ++ 317/CH15/EX15.6/example6.sce | 19 +++++++++++++++++++ 317/CH15/EX15.6/example6.txt | 1 + 317/CH15/EX15.8/example8.sce | 21 +++++++++++++++++++++ 317/CH15/EX15.8/example8.txt | 1 + 10 files changed, 125 insertions(+) create mode 100755 317/CH15/EX15.1/example1.sce create mode 100755 317/CH15/EX15.1/example1.txt create mode 100755 317/CH15/EX15.4/example4.sce create mode 100755 317/CH15/EX15.4/example4.txt create mode 100755 317/CH15/EX15.5/example5.sce create mode 100755 317/CH15/EX15.5/example5.txt create mode 100755 317/CH15/EX15.6/example6.sce create mode 100755 317/CH15/EX15.6/example6.txt create mode 100755 317/CH15/EX15.8/example8.sce create mode 100755 317/CH15/EX15.8/example8.txt (limited to '317/CH15') diff --git a/317/CH15/EX15.1/example1.sce b/317/CH15/EX15.1/example1.sce new file mode 100755 index 000000000..6370430fe --- /dev/null +++ b/317/CH15/EX15.1/example1.sce @@ -0,0 +1,23 @@ +// find diode current +// Electronic Principles +// By Albert Malvino , David Bates +// Seventh Edition +// The McGraw-Hill Companies +// Example 15-1, page 524 + +clear; clc; close; + +// Given data +Vb=10;// breakover voltage of the diode +V=15;// input voltage in volts +Ih=4*10^-3;// holding current in amperes +Vd=0.7 ;// voltage across diode in volts +R=100;// resistance in ohms + +// Calculations +// as V>Vb ,the diode breaks over .Taking into consideration the voltage across the diode +I=(V-Vd)/R;// diode current in amperes +disp("Amperes",I,"diode current=") + +// Result +// Diode current is 143 mAmperes \ No newline at end of file diff --git a/317/CH15/EX15.1/example1.txt b/317/CH15/EX15.1/example1.txt new file mode 100755 index 000000000..c3ccc00be --- /dev/null +++ b/317/CH15/EX15.1/example1.txt @@ -0,0 +1 @@ +Diode current is 143 mAmperes \ No newline at end of file diff --git a/317/CH15/EX15.4/example4.sce b/317/CH15/EX15.4/example4.sce new file mode 100755 index 000000000..9edb648e4 --- /dev/null +++ b/317/CH15/EX15.4/example4.sce @@ -0,0 +1,25 @@ +// find input and supply voltage for the SCR +// Electronic Principles +// By Albert Malvino , David Bates +// Seventh Edition +// The McGraw-Hill Companies +// Example 15-4, page 531 + +clear; clc; close; + +// Given data +Vgt=0.75 ;// gate trigger voltage in volts +Igt=7*10^-3;// gate trigger current in amperes +Rg=10^3;// in ohms +Rl=100;// in ohms +Ih=6*10^-3;// holding current in amperes + +// Calculations +Vin=Vgt + (Igt*Rg);// input voltage in volts +Vcc=0.7 + (Ih*Rl);// supply voltage in volts +disp("Volts",Vin,"Input voltage=") +disp("Volts",Vcc,"Supply voltage=") + +// Result +// Minimum input voltage needed to trigger the SCR is 7.75 Volts +// Supply voltage that turns off the SCR is 1.3 Volts \ No newline at end of file diff --git a/317/CH15/EX15.4/example4.txt b/317/CH15/EX15.4/example4.txt new file mode 100755 index 000000000..fd801b0e8 --- /dev/null +++ b/317/CH15/EX15.4/example4.txt @@ -0,0 +1,2 @@ +Minimum input voltage needed to trigger the SCR is 7.75 Volts +Supply voltage that turns off the SCR is 1.3 Volts \ No newline at end of file diff --git a/317/CH15/EX15.5/example5.sce b/317/CH15/EX15.5/example5.sce new file mode 100755 index 000000000..a93f212b2 --- /dev/null +++ b/317/CH15/EX15.5/example5.sce @@ -0,0 +1,30 @@ +// find peak output voltage and frequency +// Electronic Principles +// By Albert Malvino , David Bates +// Seventh Edition +// The McGraw-Hill Companies +// Example 15-5, page 532 + +clear; clc; close; + +// Given data +R1=900;// from the figure in ohms +R2=100;// from the figure in ohms +Vgt=1 ;// gate trigger voltage in volts +Igt=200*10^-6;// gate trigger current in amperes +C=0.2*10^-6;// capacitance in faraday +R=50;// thevenin resistance facing the capacitance when the SCR is off + +// Calculations +Rth=R1*R2/(R1+R2);// thevenin resistance +Rg=Rth;// in ohms +Vin=Vgt + (Igt*Rg);// input voltage in volts +Vpeak=10*Vin;// because of 10:1 voltage divider, the output voltage is 10(Vin) +T=0.2*R*C ;// period of sawtooth is 20% of time constant in seconds +f=1/T;// frequency in Hertz +disp("Volts",Vpeak,"Peak output voltage=") +disp("hertz",f,"frequency=") + +// Results +// Peak output voltage is 10.1 Volts +// Frequency is 50 KHertz \ No newline at end of file diff --git a/317/CH15/EX15.5/example5.txt b/317/CH15/EX15.5/example5.txt new file mode 100755 index 000000000..65596981b --- /dev/null +++ b/317/CH15/EX15.5/example5.txt @@ -0,0 +1,2 @@ +Peak output voltage is 10.1 Volts +Frequency is 50 KHertz \ No newline at end of file diff --git a/317/CH15/EX15.6/example6.sce b/317/CH15/EX15.6/example6.sce new file mode 100755 index 000000000..88034723d --- /dev/null +++ b/317/CH15/EX15.6/example6.sce @@ -0,0 +1,19 @@ +// find supply voltage +// Electronic Principles +// By Albert Malvino , David Bates +// Seventh Edition +// The McGraw-Hill Companies +// Example 15-6, page 536 + +clear; clc; close; + +// Given dataVz=5.6;// breakdown voltage in volts +Vgt=0.75;// gate trigger voltage in volts +Vz=5.6;// breakdown voltage in volts + +// Calculations +Vcc=Vz+Vgt;// overvoltage firing the SCR in volts +disp("Volts",Vcc,"Supply voltage=") + +// Results +// Supply voltage that turns the crowbar is 6.35 volts \ No newline at end of file diff --git a/317/CH15/EX15.6/example6.txt b/317/CH15/EX15.6/example6.txt new file mode 100755 index 000000000..7f8630211 --- /dev/null +++ b/317/CH15/EX15.6/example6.txt @@ -0,0 +1 @@ +Supply voltage that turns the crowbar is 6.35 volts \ No newline at end of file diff --git a/317/CH15/EX15.8/example8.sce b/317/CH15/EX15.8/example8.sce new file mode 100755 index 000000000..aa2eb9703 --- /dev/null +++ b/317/CH15/EX15.8/example8.sce @@ -0,0 +1,21 @@ +// find current through the resistor +// Electronic Principles +// By Albert Malvino , David Bates +// Seventh Edition +// The McGraw-Hill Companies +// Example 15-8, page 546 + +clear; clc; close; + +// Given data +R1=82;// givenin ohms +R2=22;// given in ohms +Vgt=75;// in volts + +// Calculations +// Ideally the triac has 0 voltas across it when conducting +I=Vgt/R2;// current through 22 ohm resistor in amperes +disp("Amperes",I,"current through 22 ohm resistor=") + +// Results +// Current through the 22 ohm resistor is 3.41 Amperes \ No newline at end of file diff --git a/317/CH15/EX15.8/example8.txt b/317/CH15/EX15.8/example8.txt new file mode 100755 index 000000000..582ab2207 --- /dev/null +++ b/317/CH15/EX15.8/example8.txt @@ -0,0 +1 @@ +Current through the 22 ohm resistor is 3.41 Amperes \ No newline at end of file -- cgit