initial commit / add all books

1 files changed, 38 insertions, 0 deletions

diff --git a/1223/CH8/EX8.11/Ex8_11.sce b/1223/CH8/EX8.11/Ex8_11.sce
new file mode 100755
index 000000000..6d6b2a2b9
--- /dev/null
+++ b/1223/CH8/EX8.11/Ex8_11.sce
@@ -0,0 +1,38 @@
+clear;

+clc;

+//Example 8.11

+R1=2;//KOhm

+R2=R1;

+Rl=.1;//KOhm

+b=60;

+Vbe=0.6;

+Veb=0.6;

+V1=15;

+V2=V1;

+iR1=(V1-Vbe)/R1;

+//iR1=iR2=iE1=iE2

+printf('\niR1=%.2f mA\n',iR1)

+vo=10;

+io=vo/Rl;

+printf('\noutput current=%.3f mA\n',io)

+iB3=100/61;

+printf('\niB3=%.3fmA\n',iB3)

+iR1=(V1-(10+Vbe))/R1;

+printf('\ncurrent in R1=%.3f mA\n',iR1)

+iE1=iR1-iB3;

+printf('\niE1=%.3f mA\n',iE1)

+iB1=iE1/(1+b);

+iB1=iB1*1000;//micro A

+printf('\niB1=%.3f microA\n',iB1)

+iE2=(10-0.6+15)/R1;

+printf('\niE2=%.3f mA\n',iE2)

+iB2=iE2/(1+b);

+iB2=iB2*1000;

+printf('\niB2=%.3f microA\n',iB2)

+Ii=iB2-iB1;

+printf('\ninput current=%.3f microA\n',Ii)

+Ii=Ii*0.001;//mA

+Ai=io/Ii;

+printf('\ncurrent gain=%.2f\n',Ai)

+Ai=(1+b)*R1/(2*Rl);

+printf('\npredicted current gain=%.2f\n',Ai)