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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 /68/CH8/EX8.3 | |
| 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 '68/CH8/EX8.3')
| -rwxr-xr-x | 68/CH8/EX8.3/ex3.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/68/CH8/EX8.3/ex3.sce b/68/CH8/EX8.3/ex3.sce new file mode 100755 index 000000000..91dff4c46 --- /dev/null +++ b/68/CH8/EX8.3/ex3.sce @@ -0,0 +1,21 @@ +// Example 8.3 : Small signal analysis
+B=100; // beta value
+I_B=0.015*10^-3; // (A)
+I_C=1.5*10^-3; // (A)
+V_C=4.7; // (V)
+g_m=40*10^-3;
+R_f=47000;
+R_S=10000;
+R_C=4700;
+r_pi=B/g_m;
+A=-358.7*10^3; // V_o/I_i= -g_m(R_f||R_C)(R_S||R_F||r_pi)
+R_i=1400; // R_i=R_S||R_f||r_pi (ohm)
+R_o=R_C*R_f/(R_C+R_f);
+B=-1/R_f;
+A_f=A/(1+A*B); // V_o/I_s
+A_v=A_f/R_S; // V_o/V_s
+disp(A_v,"The gain (V/V)")
+R_if=R_i/(1+A*B);
+disp(R_if,"R_if (ohm)")
+R_of=R_o/(1+A*B);
+disp(R_of,"R_of (ohm)")
\ No newline at end of file |