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diff --git a/2075/CH7/EX7.6/pe7_6.sce b/2075/CH7/EX7.6/pe7_6.sce
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+//example 7.6 
+clc; funcprot(0);
+// Initialization of Variable
+V1=12//V
+V2=22;//V
+I=.7;//A
+f=100;//kHz
+R=.4;//ohm
+Vd=.5;
+//calculation
+Pl=V2*I;
+disp(Pl,"load power in W:")
+Ps=Pl/.9;
+disp(Ps ,"supply power in W:")
+Id=round(Ps/V1*10)/10;
+disp(Id,"dc current in A:")
+i=.25*Id;
+Ip=Id+i/2;
+disp(Ip,"inductor current in A:")
+D=round((1-V1/V2)*100)/100;
+disp(D,"duty cycle :")
+t=D/f;
+L=V1*t/i;
+disp(L*1000,"inductor in microH:")
+Vp=Id*R;
+Pq=D*Vp*Id;
+disp(Pq*1000,"transistor power in mW:")
+Pd=(1-D)*.5*Id;
+disp(round(Pd*100)*10,"diode power in mW:")
+C=Id*t/2/20;
+disp(C*1e6,"capacitor in microF:")
+clear()