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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/EX8.4/ex4.sce | |
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initial commit / add all books
Diffstat (limited to '68/CH8/EX8.4/ex4.sce')
| -rwxr-xr-x | 68/CH8/EX8.4/ex4.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/68/CH8/EX8.4/ex4.sce b/68/CH8/EX8.4/ex4.sce new file mode 100755 index 000000000..3b9cc058a --- /dev/null +++ b/68/CH8/EX8.4/ex4.sce @@ -0,0 +1,29 @@ +// Example 8.4: Small signal analysis
+R_S=10*10^3; // (ohm)
+R_B1=100*10^3; // (ohm)
+R_B2=15*10^3; // (ohm)
+R_C1=10*10^3; // (ohm)
+R_E1=870; // (ohm)
+R_E2=3400; // (ohm)
+R_C2=8000; // (ohm)
+R_L=1000; // (ohm)
+R_f=10000; // (ohm)
+B=100; // beta value
+V_A=75; // (V)
+A=-201.45 // I_o/I_i (A/A)
+R_i=1535; // (ohm)
+R_o=2690; // (ohm)
+B=-R_E2/(R_E2+R_f);
+R_if=R_i/(1+A*B);
+disp(R_if)
+R_in=1/((1/R_if)-(1/R_S));
+disp(R_in, "R_in (ohm)")
+A_f=A/(1+A*B); // I_o/I_S
+gain=R_C2*A_f/(R_C2+R_L); // I_o/I_S
+disp(gain,"I_o/I_S (A/A)")
+R_of=R_o*(1+A*B); // (ohm)
+r_o2=75/0.0004; // (ohm)
+g_m2=0.016; // (A/V)
+r_pi2=6250; // (ohm)
+R_out=r_o2*[1+g_m2*(r_pi2*R_of/(r_pi2+R_of))]
+disp(R_out,"R_out (ohm)")
\ No newline at end of file |