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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 /2231/CH1/EX1.39 | |
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initial commit / add all books
Diffstat (limited to '2231/CH1/EX1.39')
| -rwxr-xr-x | 2231/CH1/EX1.39/Ex_1_39.sce | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/2231/CH1/EX1.39/Ex_1_39.sce b/2231/CH1/EX1.39/Ex_1_39.sce new file mode 100755 index 000000000..040090ade --- /dev/null +++ b/2231/CH1/EX1.39/Ex_1_39.sce @@ -0,0 +1,33 @@ +//Example 1_39
+clc;
+clear;close;
+
+//Given data:
+RL=8;//ohm
+V=230;//V
+Ip=100;//A
+SF=2;//safety factor
+di_by_dt_max=40/10^-6/2;//A/s
+dv_by_dt_max=150/10^-6/2;//V/s
+
+ L=sqrt(2)*V/di_by_dt_max;//H
+disp(L,"Value of L(H)");
+R=L/(sqrt(2)*V)*dv_by_dt_max;//ohm
+disp(R,"Value of R(ohm)");
+IL_peak=(sqrt(2)*V)/RL;//A
+Ic_peak=(sqrt(2)*V)/R;//A
+Itotal=IL_peak+Ic_peak;//A
+disp(Itotal,"Total current through capacitor for these values(A)");
+disp("Itotal>Ip, therefore value of R should be increased.");
+Ic_max=Ip-IL_peak;//A
+R=(sqrt(2)*V)/Ic_max;//ohm
+R=ceil(R);//ohm
+disp(R,"New Value of R(ohm)");
+damping=0.65;
+C=4*damping^2*L/R^2;//F
+disp(C*10^6,"Value of C(micro F)");
+disp(L*10^6,"Value of L(micro H)");
+//Ic_switching=C*dv/dt
+dv_by_dt=sqrt(2)*V/(R+RL)/C;//V/s
+disp("Value of dv/dt is "+string(dv_by_dt)+" V/s. It is within the limit for the calculated value of R, L & C. Design is safe.")
+
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