From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 281/CH10/EX10.3/example10_3.sce | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100755 281/CH10/EX10.3/example10_3.sce (limited to '281/CH10/EX10.3') diff --git a/281/CH10/EX10.3/example10_3.sce b/281/CH10/EX10.3/example10_3.sce new file mode 100755 index 000000000..9be71364e --- /dev/null +++ b/281/CH10/EX10.3/example10_3.sce @@ -0,0 +1,40 @@ +disp('chapter 10 ex10.3') +disp('given') +disp('design a phase shift oscillator to have output frequency of 6kHz and to give maximum output of +or-3volt') +Vo=3 +f=6000 +disp('let I2=1mA when diodes are forward-biased,i.e peak output Vp=3volt and Vf=0.7volt') +I2=1*10^(-3) +Vf=0.7 +disp('R1=Vo/29/I2') +R1=Vo/29/I2 +disp('ohms',R1) +disp('use 100ohm standard value') +R1=100 +disp('R2=29*R1') +R2=29*R1 +disp('ohms',R2) +disp('R3=2*Vf/I2') +R3=2*Vf/I2 +disp('ohms',R3) +disp('use 1.5kohm standard value') +R3=1500 +disp('R4=R2-R3') +R4=R2-R3 +disp('ohms',R4) +disp('R5=0.4*R4') +R5=0.4*R4 +disp('ohms',R5) //use a 1kohm potentiometer +disp('R6=0.8*R4') +R6=0.8*R4 +disp('ohms',R6) //use 1.2kohm standard value +disp('R=R1=100ohm') +R=100 +disp('C=1/(2*%pi*R*f*sqrt(6))') +C=1/(2*%pi*R*f*sqrt(6)) +disp('farads',C) //standard value +disp('diodes D1 through D4,trrmax=T/10') +trrmax=1/(f*10) +disp('seconds',trrmax) +disp('Vrmax>Vcc=+or-15volt') +disp('the IN914 has trr=4ns and Vrmax=75volt use IN914 diodes') \ No newline at end of file -- cgit