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

---
 226/CH17/EX17.4/example4_sce.sce | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100755 226/CH17/EX17.4/example4_sce.sce

(limited to '226/CH17/EX17.4/example4_sce.sce')

diff --git a/226/CH17/EX17.4/example4_sce.sce b/226/CH17/EX17.4/example4_sce.sce
new file mode 100755
index 000000000..b9f09c63a
--- /dev/null
+++ b/226/CH17/EX17.4/example4_sce.sce
@@ -0,0 +1,17 @@
+//chapter 17
+//example 17.4
+//page 724
+printf("\n")
+printf("given")
+f=1*10^3;Ib=500*10^-9;
+disp("butterworth second order filter")
+R=(70*10^-3)/Ib
+R1=R/2
+R1=68.1*10^3;//use standard value
+R2=R1; 
+R3=2*R1
+Xc1=sqrt(2)*R2
+C1=1/(2*3.14*f*sqrt(2)*R2)
+C2=2*C1
+fc=1/(2*3.14*(sqrt(R1*R2*C1*C2)));
+printf("actual cutoff frequency is %dHz\n",fc)
\ No newline at end of file
-- 
cgit