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Diffstat (limited to '2045/CH5/EX5.20/Ex5_20.sce')
| -rwxr-xr-x | 2045/CH5/EX5.20/Ex5_20.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/2045/CH5/EX5.20/Ex5_20.sce b/2045/CH5/EX5.20/Ex5_20.sce new file mode 100755 index 000000000..a37e96c4b --- /dev/null +++ b/2045/CH5/EX5.20/Ex5_20.sce @@ -0,0 +1,23 @@ +//pagenumber 300 example 20
+clear
+freque=6*10^6;//hertz
+hfe=50;
+r1=500;//ohm
+g=0.04
+rbb=100;//ohm
+
+
+c1=10*10^-12;//farad
+r=1000;//ohm
+rbe=hfe/g;
+ce=g/(2*3.14*freque);
+c1=ce+c1*(1+g*r);
+hie=rbb+rbe;
+resist=(r1+rbb)*rbe/(r1+rbb+rbe);
+frequ2=1/(2*3.14*resist*c1);
+curgai=-hfe*r1/(r1+hie);
+volgai=(-hfe*r)/(r1+hie);
+q=volgai*frequ2;
+disp("upper frequency voltage gain = "+string(abs(q))+"hertz");//correction in the book
+q=curgai*frequ2;
+disp("upper current gain = "+string(abs(q))+"hertz");
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