1 files changed, 33 insertions, 0 deletions
diff --git a/281/CH9/EX9.6/example9_6.sce b/281/CH9/EX9.6/example9_6.sce
new file mode 100755
index 000000000..a55b3897b
--- /dev/null
+++ b/281/CH9/EX9.6/example9_6.sce
@@ -0,0 +1,33 @@
+disp('chapter 9 ex9.6')
+disp('given')
+disp('design an astable multivibrator to have a+or-9volt output with frequency f=1kHz')
+disp('using BIFET op-amp for Vo=+or-9volt')
+Vo=9
+disp('Vcc=+or-(Vo+1)')
+Vcc=Vo+1
+disp('volts',Vcc)
+disp('select UTP and LTP<Vo')
+disp('let |UTP|=|LTP|=0.5volt')
+UTP=0.5
+LTP=-0.5
+disp('let R2=1Mohm')
+R2=1*10^(6)
+disp('I3=(|Vo|-UTP)/R2')
+I3=(Vo-UTP)/R2
+disp('amperes',I3)
+disp('R3=UTP/I3')
+R3=UTP/I3
+disp('ohms',R3)
+disp('use 5.6kohm standard value')
+disp('let C1=0.1*10^(-6)F')
+C1=0.1*10^(-6)
+disp('t=1/(2*f)')
+t=1/(2*f)
+disp('seconds',t)
+disp('I1=C1*(UTP-LTP)/t')
+I1=C1*(UTP-LTP)/t
+disp('amperes',I1)
+disp('R1=(Vo-UTP)/I1')
+R1=(Vo-UTP)/I1
+disp('ohms',R1)
+disp('use 39kohm and3.3kohm in series')
+\ No newline at end of file