Version 4
SHEET 1 1456 804
WIRE -256 480 -352 480
WIRE -192 480 -256 480
WIRE -352 528 -352 480
WIRE 832 528 720 528
WIRE 896 528 832 528
WIRE 352 544 288 544
WIRE 400 544 352 544
WIRE 528 544 480 544
WIRE 656 544 528 544
WIRE 528 560 528 544
WIRE 832 560 720 560
WIRE 896 560 832 560
WIRE -352 624 -352 608
WIRE 288 656 288 624
WIRE 528 656 528 624
WIRE -240 672 -352 672
WIRE -192 672 -240 672
WIRE -352 688 -352 672
WIRE 656 720 656 576
WIRE -352 784 -352 768
FLAG 288 656 0
FLAG 656 720 0
FLAG 832 528 out1
FLAG 832 560 \out1
FLAG 352 544 B1.out
FLAG -352 624 0
FLAG -352 784 0
FLAG -256 480 sine1
FLAG -240 672 ramp1
FLAG 528 656 0
SYMBOL Digital\\schmitt 656 480 R0
WINDOW 3 -57 -9 Left 2
SYMATTR Value Vt=2.5 Vh=1 Vlow=0 Vhigh=15
SYMATTR InstName A3
SYMBOL bv 288 528 R0
WINDOW 0 -58 13 Left 2
WINDOW 3 -152 105 Left 2
SYMATTR InstName B1
SYMATTR Value V=if((V(sine1)>V(ramp1)),5,0)
SYMBOL voltage -352 512 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Sine1
SYMATTR Value SINE(2.5 2.5 50 0 0 90)
SYMBOL voltage -352 672 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Ramp1
SYMATTR Value PULSE(0 5 0 67.5u 67.5u 0 50u)
SYMBOL res 496 528 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 2.802
SYMBOL cap 512 560 R0
SYMATTR InstName C1
SYMATTR Value 100n
TEXT 56 432 Left 2 !.tran 1f 20m uic