1 files changed, 43 insertions, 0 deletions
diff --git a/1658/CH24/EX24.9/Ex24_9.sce b/1658/CH24/EX24.9/Ex24_9.sce
new file mode 100755
index 000000000..773f33809
--- /dev/null
+++ b/1658/CH24/EX24.9/Ex24_9.sce
@@ -0,0 +1,43 @@
+
+clc;
+RC=4*10**3;
+R1=40*10**3;
+R2=10*10**3;
+RE=2*10**3;
+RS=1*10**3;
+RL=2.2*10**3;
+CS=10*10**-6;
+CE=20*10**-6;
+CC=1*10**-6;
+B=100;
+VCC=20;
+VB=(R2*VCC)/(R2+R1);
+IE=(VB-0.7)/RE;
+re=(26*10**-3)/IE;
+B*re;
+vo=-(RC*RL)/(RC+RL);
+Av=vo/re;
+a=(R1*R2)/(R1+R2);
+Ri=(a*(B*re))/(a+(B*re));
+Rs=1*10**3;
+vibyvs=Ri/(Ri+Rs);
+Avs=Av*vibyvs;
+a=(R1*R2)/(R1+R2);
+Ri=(a*(B*re))/(a+(B*re));
+fLS=1/(2*%pi*(Rs+Ri)*CS);
+disp('HZ',fLS*1,"fLS=");
+fLC=1/(2*%pi*(RC+RL)*CC);
+disp('HZ',fLC*1,"fLC=");
+a=(R1*R2)/(R1+R2);
+RS=(a*RS)/(a+RS);
+b=(RS/B+re);
+Re=(RE*b)/(RE+b);
+fLE=1/(2*%pi*Re*CE);
+disp('HZ',fLE*1,"fLE=");
+i=-21:3:0;
+plot2d(i);
+a=gca() //get the current axes
+a.box="off";
+a.x_location="top";
+xlabel("f (log scale)");
+ylabel( "Av(dB)");