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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /275/CH4/EX4.4.29/Ch4_4_29.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '275/CH4/EX4.4.29/Ch4_4_29.sce')
| -rwxr-xr-x | 275/CH4/EX4.4.29/Ch4_4_29.sce | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/275/CH4/EX4.4.29/Ch4_4_29.sce b/275/CH4/EX4.4.29/Ch4_4_29.sce new file mode 100755 index 000000000..d961ab69f --- /dev/null +++ b/275/CH4/EX4.4.29/Ch4_4_29.sce @@ -0,0 +1,35 @@ +clc
+disp("Example 4.29")
+printf("\n")
+disp("Calculate suitable values of R1,Rp,R2 for SCR in circuit Fig 4.12")
+printf("Given\n")
+printf("Resistance are in ohms \nCurrent are in Ampere \n Voltage sources are in volt\n")
+//gate current
+Ig=600*10^-6
+//gate trigger voltage
+Vg=0.7
+Vd=0.7
+//supply voltage
+Vs=230
+//peak value of supply voltage
+Vm=sqrt(2)*Vs
+//supply voltage at angle 8deg
+Vs1=Vm*sin(8*%pi/180)
+//supply voltage at angle 90deg
+Vs2=Vm*sin(90*%pi/180)
+//to trigger SCR at 10deg moving contact of Rp is at top
+//from circuit
+VR1=Vs1-Vg
+//choose I1min>>Ig
+I1min=6*10^-3
+R1=VR1/I1min
+//since Ig<<I1min, current through Rp & R2 is I1min
+RpPLUSR2=Vg/I1min
+//to trigger SCR at 90deg moving contact of Rp is at bottom
+VR2=Vt
+I1=Vs2/(R1+RpPLUSR2)
+R2=Vg/I1
+Rp=RpPLUSR2-R2
+printf("Resistance R1 is %f ohm \n",R1)
+printf("Resistance R2 is %f ohm \n",R2)
+printf("Resistance Rp is %f ohm \n",Rp)
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