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diff --git a/135/CH3/EX3.29/3_29.JPG b/135/CH3/EX3.29/3_29.JPG
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diff --git a/135/CH3/EX3.29/EX29.sce b/135/CH3/EX3.29/EX29.sce
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+// Example 3.29: Output voltage
+clc, clear
+Vy=0.5; // in volts
+Rf=50; // in ohms
+t=[0:5]; // in seconds
+vs=10*t/5; // Input voltage in volts
+// Output voltage
+for i=1:length(vs)
+    if vs(i)<6.5 then
+        // Diode is OFF
+        vo(i)=6; // in volts
+    else
+        // From Fig. 3.66(a), Diode is ON
+        I=(vs(i)-6.5)/(200+Rf+200); // in amperes
+        vo(i)=6+I*200; // in volts
+    end
+end
+plot2d(t,vo,rect=[0,0,5,8]);
+xtitle("Output voltage","t,ms","vo(t)");
+\ No newline at end of file