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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 /1511/CH4/EX4.8 | |
| 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 '1511/CH4/EX4.8')
| -rwxr-xr-x | 1511/CH4/EX4.8/ex4_8.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/1511/CH4/EX4.8/ex4_8.sce b/1511/CH4/EX4.8/ex4_8.sce new file mode 100755 index 000000000..aaeef5035 --- /dev/null +++ b/1511/CH4/EX4.8/ex4_8.sce @@ -0,0 +1,21 @@ +// Example 4.8 page no-208
+clear
+clc
+
+alfa=0.98
+Ie=-2 //in mA IE is negative because it is NPN transistor
+Ic=-alfa*Ie
+Ib=(1-alfa)*(-Ie)
+vbe=0.6 //V
+vcc=12 //V
+re=100 //ohm
+r2= 20000 //ohm
+r1=3.3 //k-Ohm
+vbn=vbe-(Ie*re*10^-3)
+printf("\nIc = %.2f mA\nIb = %.0f micro A\nV_BN =%.1f V",Ic,Ib*1000,vbn)
+Ir2=vbn*10^3/r2
+Ir1=Ir2+Ib
+printf("\nIR1 = %.0f micro A\nIR2 = %.0f micro A\nIrc = %.2f mA",Ir1*1000,Ir2*1000,Ir1+Ic)
+vr1=vcc-((Ir1+Ic)*r1)-vbn
+R1=vr1/Ir1
+printf("\nR1=%d K-Ohm",ceil(R1))
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