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

---
 181/CH2/EX2.21/example2_21.sce | 25 +++++++++++++++++++++++++
 181/CH2/EX2.21/example2_21.txt |  3 +++
 2 files changed, 28 insertions(+)
 create mode 100755 181/CH2/EX2.21/example2_21.sce
 create mode 100755 181/CH2/EX2.21/example2_21.txt

(limited to '181/CH2/EX2.21')

diff --git a/181/CH2/EX2.21/example2_21.sce b/181/CH2/EX2.21/example2_21.sce
new file mode 100755
index 000000000..d0396064d
--- /dev/null
+++ b/181/CH2/EX2.21/example2_21.sce
@@ -0,0 +1,25 @@
+// Maximum reverse-bias voltage to be maintained
+// Basic Electronics
+// By Debashis De
+// First Edition, 2010
+// Dorling Kindersley Pvt. Ltd. India
+// Example 2-21 in page 99
+
+clear; clc; close;
+
+// Given data
+Rt=0.15*10^-3; // Thermal resistance of mechanical contact between diode and surroundings in mW/degree celcius
+T1=25; // Ambient temperature in degree celcius
+T2=35; // Rise in ambient temperature in degree celcius
+I_25=5*10^-6; // Reverse saturation current at 25 degrees in mu-A
+
+// Calculation
+Po=Rt*(T2-T1);
+printf("P_out = %0.2e mW\n",Po);
+printf("We know that reverse saturation current doubles for every 10 degree rise in temperature\n");
+I_35=2*I_25;
+V=Po/I_35;
+printf("Thus the maximum reverse bias voltage to be maintained is %0.0f V",V);
+
+// Result
+// Maximum reverse bias voltage that can be maintained across diode is 150V
\ No newline at end of file
diff --git a/181/CH2/EX2.21/example2_21.txt b/181/CH2/EX2.21/example2_21.txt
new file mode 100755
index 000000000..6dc5a426f
--- /dev/null
+++ b/181/CH2/EX2.21/example2_21.txt
@@ -0,0 +1,3 @@
+P_out = 1.50e-003 mW
+We know that reverse saturation current doubles for every 10 degree rise in temperature
+Thus the maximum reverse bias voltage to be maintained is 150 V 
\ No newline at end of file
-- 
cgit