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diff --git a/863/CH6/EX6.1/Ex6_1.txt b/863/CH6/EX6.1/Ex6_1.txt
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+//Caption:Determine schmitt trigger circuit components for designing it
+//Ex6.1
+clc;
+clear;
+close;
+u=5//Upper trigger point voltage(in volts)
+Vbe=0.7//Base emitter voltage(in volts)
+I=2//Collector current(in mA)
+hfe=100
+Vcc=12//Collector voltage(in volt)
+Vce=0.2//Saturated collector emitter voltage(in volts)
+Ve=u-Vbe
+Re=Ve/I
+Rc=(Vcc-Ve-Vce)/I
+i=I/10
+R2=u/i
+Ib2=I/hfe
+I2=u/i
+It=Ib2+i
+r=(Vcc-u)/It
+R1=r-Rc
+disp(R1,R2,Rc,Re,'Circuit components Re,Rc,R2,R1(in kilo ohm)=')
+\ No newline at end of file