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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/CH5/EX5.2 | |
| 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/CH5/EX5.2')
| -rwxr-xr-x | 68/CH5/EX5.2/ex2.sce | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/68/CH5/EX5.2/ex2.sce b/68/CH5/EX5.2/ex2.sce new file mode 100755 index 000000000..430c974a7 --- /dev/null +++ b/68/CH5/EX5.2/ex2.sce @@ -0,0 +1,35 @@ +// Example 5.2 : Consider a common Emitter circuit
+I_S=10^-15; // (A)
+R_C=6.8*10^3; // (ohm)
+V_CC=10; // (V)
+V_CE=3.2; // (V)
+V_T=25*10^-3; // (V)
+
+// 5.2a
+I_C=(V_CC-V_CE)/R_C;
+disp(I_C,"Collector current (A)")
+V_BE=V_T*log(I_C/I_S);
+disp(V_BE,"V_BE (V)")
+
+// 5.2b
+V_in=5*10^-3; // sinuosoidal input 0f peak amplitide 5mv
+A_v=-(V_CC-V_CE)/V_T;
+disp(A_v,"Voltage gain")
+V_o=-A_v*V_in; // negative sign to make positive value of voltage gain
+disp(V_o,"Amplitude of output voltage (V)")
+
+// 5.2c
+v_CE=0.3// (V)
+i_C=(V_CC-v_CE)/R_C;
+disp(i_C,"i_C (A)")
+v_be=V_T*log(i_C/I_C); // v_BE is positive increment in v_BE
+disp(v_be,"required increment (V)")
+
+// 5.2d
+v_O=0.99*V_CC;
+R_C=6.8*10^3; // (ohm)
+i_C=(V_CC-v_O)/R_C;
+I_C=1*10^-3; // (A)
+disp(i_C,"i_C (A)")
+v_be=V_T*log(i_C/I_C);
+disp(v_be,"negative increment in v_BE (V)")
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