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+//Example 6_22
+clc;
+clear;
+close;
+format('v',7);
+//given data : 
+IL=50;//micro A
+C=4;///micro F
+C1=4;///micro F
+L=20;///H(Choke Inductance)
+R=200;//ohm(Choke Resistance)
+V=300;//V
+Idc=IL/1000;//mA
+Vdc=V*sqrt(2)-4170*Idc/C-Idc*R;//V
+disp(Vdc,"Output Voltage(V) : " );
+r=3300*Idc/C/C1/L/R;//Ripple factor
+Vrms=r*Vdc;//V
+disp(Vrms,"Ripple Voltage(V) : ");
+//Answer in the textbook is wrong. calculation & value putting mistake.