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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /199/CH6/EX6.2.a/Example_6_2_a.sce | |
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Diffstat (limited to '199/CH6/EX6.2.a/Example_6_2_a.sce')
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diff --git a/199/CH6/EX6.2.a/Example_6_2_a.sce b/199/CH6/EX6.2.a/Example_6_2_a.sce new file mode 100755 index 000000000..a7d14d581 --- /dev/null +++ b/199/CH6/EX6.2.a/Example_6_2_a.sce @@ -0,0 +1,20 @@ +// Chapter6
+// Page.No-193, Figure.No-6.4(c)
+// Example_6_2_a
+// Bandwidth of the amplifier
+// Given
+clear;clc;
+R1=100*10^3;R2=100*10^3;R3=100*10^3;Rf=1*10^6;Rin=50;
+Ci=0.1*10^-6; // Capacitance b/w 2 stages being coupled
+Ro=Rin; // ac output resistance of the 1st stage
+Vcc=15;
+UGB=10^6; // Unity gain bandwidth
+Rif=R2*R3/(R2+R3); // since Ri*(1+A*B)>>R2 or R3
+fl=1/(2*%pi*Ci*(Rif+Ro)); // low-freq cutoff
+printf("\n Low-freq cutoff is = %.1f Hz \n",fl) // Result
+K=Rf/(R1+Rf);
+Af=-Rf/R1; // closed loop voltage gain
+fh=UGB*K/abs(Af); // High-freq cutoff
+printf("\n High-freq cutoff is = %.1f Hz \n",fh) // Result
+BW=fh-fl; // Bandwidth
+printf("\n Bandwidth is = %.1f Hz \n",BW) // Result
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