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

---
 3129/CH17/EX17.4/ex17_4.sce | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100755 3129/CH17/EX17.4/ex17_4.sce

(limited to '3129/CH17/EX17.4')

diff --git a/3129/CH17/EX17.4/ex17_4.sce b/3129/CH17/EX17.4/ex17_4.sce
new file mode 100755
index 000000000..342a2707b
--- /dev/null
+++ b/3129/CH17/EX17.4/ex17_4.sce
@@ -0,0 +1,19 @@
+//Finding the minimum width of a gate pulse for a thyristor converter
+//Example 17.4(Page No-777) 
+clc
+clear
+//given data
+Ih=500*10^-3//holding current in A
+td=1.5*10^-6//delay time in sec
+a=30*%pi/180//alpha is a delay angle in radians
+L=10*10^-3//load L in H
+R=10//load R in ohms
+V=120//supply voltage in V
+f=60//supply freq in Hz
+Vm=sqrt(2)*V//maximum voltage value in V
+wt=a
+V1=Vm*sin(wt)
+di=V1/L//di is rate of rise of anode current at instant of triggering
+t1=Ih/di//time req by current to reach to holding current value
+tg=(t1+td)*10^6//in microsec
+printf('minimum width of gate pulse tg:%.2f microsec\n',tg)
-- 
cgit