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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 /2885/CH6/EX6.11 | |
| 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 '2885/CH6/EX6.11')
| -rwxr-xr-x | 2885/CH6/EX6.11/ex6_11.sce | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/2885/CH6/EX6.11/ex6_11.sce b/2885/CH6/EX6.11/ex6_11.sce new file mode 100755 index 000000000..7933b1be4 --- /dev/null +++ b/2885/CH6/EX6.11/ex6_11.sce @@ -0,0 +1,26 @@ +//Calculate Q point in voltage divider
+clear;
+clc;
+//soltion
+//given
+B=100; //dc beta
+Rc=2*10^3;//ohm //resistor connected to collector
+R1=10*10^3;//ohm //voltage divider resistor 1
+R2=1*10^3;//ohm //voltage divider resistor 2
+Re=200;//ohm //resistor connected to emitter
+Vcc=10;//V //Voltage supply across the collector resistor
+Vbe=0.3;//V //base to emitter voltage
+
+I=Vcc/(R1+R2); //current through voltage divider
+Vb=I*R2; //voltage at base
+Ve=Vb-Vbe;
+Ie=Ve/Re;
+Ic=Ie //approaximating Ib is nearly equal to 0
+Vc=Vcc-Ic*Rc;
+Vce=ceil(Vc)-Ve;
+printf("The Q point is (%.1f V, %.0f mA)",Vce,Ic*1000);
+
+Ibc=I/20; //critical value of base current
+Ib=Ic/B; //actual base current
+
+//Since Ib < Ibc, hence assumption is alright
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