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Diffstat (limited to '506/CH16/EX16.1/Example16_1.sce')
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1 files changed, 30 insertions, 0 deletions
diff --git a/506/CH16/EX16.1/Example16_1.sce b/506/CH16/EX16.1/Example16_1.sce new file mode 100755 index 000000000..3ed01bcd2 --- /dev/null +++ b/506/CH16/EX16.1/Example16_1.sce @@ -0,0 +1,30 @@ +clear;
+clc;
+
+//Caption:Fourth Order Butterworth Filter
+//Given Data
+fo=1;//Cutoff Frequency in Hz
+//For n = 4
+k1=0.765;
+k2=1.848;
+
+Av1 = 3-k1;
+Av2 = 3-k2;
+disp('For a fourth order Buttworth filter we cacade 2 second order Buttworth filter with parameters R1 R2 R1d R2d R C');
+//we arbitrarily choose
+R1=10;//in K
+disp('K',R1,'R1=');
+//Av1=(R1+R1d)/R1
+R1d=(Av1*R1)-R1;
+disp(R1d,'R1d = ');
+
+R2 = 10;//in K
+disp('K',R2,'R2=');
+R2d=(Av2*R2)-R2;
+disp(R2d,'R2d = ');
+
+//To satisfy fo = 1/(2*%pi*r*c) = 1kHz
+R=1;//in K
+C = 1/(2*%pi*R*fo);
+disp('K',R,'R=');
+disp('microF',C,'C = ');
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