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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 /1133/CH3/EX3.9 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '1133/CH3/EX3.9')
| -rwxr-xr-x | 1133/CH3/EX3.9/Example3_9.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/1133/CH3/EX3.9/Example3_9.sce b/1133/CH3/EX3.9/Example3_9.sce new file mode 100755 index 000000000..62b5b481b --- /dev/null +++ b/1133/CH3/EX3.9/Example3_9.sce @@ -0,0 +1,16 @@ +//Example 3.9
+clc
+disp("Here, output terminals are B and ground, thus the forward gain is the gain of Q1 and it is,")
+disp(" A_BN = -33.11")
+disp("However, Q2 and Q3 must be considered as a part of feedback loop")
+disp("Here beta_BN = V_f / V_B = V_f/V_o * V_o/V_C * V_C/V_B")
+disp("where V_B and V_C are voltages at point B and C, respectively.")
+disp("Therefore, beta_BN = V_f/V_o * A_v3 * A_v2 because V_o/V_C = A_v3 and V_C/V_B = A_v2")
+bbn=-(5*10^-5)*(33.11^2)
+format(7)
+disp(bbn,"Therefore, beta_BN = -R1/R_g * A_v3 * A_v2 =")
+disp("Note that the loop gain - beta_BN * A_BN = A^3_Vo * R1/Rg = -1.815 = -A*beta")
+disp("It should be clear tht regardless ofwhere the output terminals are taken, the loop gain is unchanged.")
+avf=-33.11/2.815
+format(6)
+disp(avf,"Therefore, A_vf = A_BN / 1+A*beta =")
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