Version 4
SHEET 1 1368 776
WIRE 1072 0 1072 -16
WIRE 48 16 48 -16
WIRE 432 32 368 32
WIRE 1072 32 1072 0
WIRE 1072 32 976 32
WIRE 48 80 48 16
WIRE 208 80 208 16
WIRE 416 112 416 80
WIRE 976 112 976 32
WIRE 1072 144 1072 32
WIRE 416 160 416 112
WIRE 1040 160 1008 160
WIRE 208 176 208 80
WIRE 224 176 208 176
WIRE 336 176 304 176
WIRE 368 176 368 32
WIRE 368 176 336 176
WIRE 384 176 368 176
WIRE 1200 176 1104 176
WIRE 1232 176 1200 176
WIRE 480 192 448 192
WIRE 512 192 512 32
WIRE 512 192 480 192
WIRE 560 192 512 192
WIRE 720 192 624 192
WIRE 784 192 720 192
WIRE 832 192 784 192
WIRE 1008 192 912 192
WIRE 1040 192 1008 192
WIRE -80 208 -128 208
WIRE 48 208 48 144
WIRE 48 208 0 208
WIRE 128 208 48 208
WIRE 336 208 208 208
WIRE 384 208 336 208
WIRE -128 224 -128 208
WIRE 720 224 720 192
WIRE 784 224 784 192
WIRE 48 240 48 208
WIRE -128 320 -128 304
WIRE 48 320 48 304
WIRE 48 320 -128 320
WIRE 416 320 416 224
WIRE 416 320 48 320
WIRE 720 320 720 288
WIRE 720 320 416 320
WIRE 784 320 784 304
WIRE 784 320 720 320
WIRE 976 320 976 208
WIRE 976 320 784 320
WIRE 1072 320 1072 208
WIRE 1072 320 976 320
WIRE 1312 320 1072 320
WIRE -128 384 -128 320
WIRE 64 560 64 528
WIRE 176 560 176 528
WIRE 64 576 64 560
WIRE 176 592 176 560
WIRE 64 672 64 656
WIRE 176 672 64 672
WIRE 176 736 176 672
FLAG 176 736 0
FLAG 64 560 Vcc
FLAG 416 112 Vcc
FLAG 336 208 NI
FLAG 336 176 INV
FLAG 480 192 Out
FLAG 208 80 2V_ref
FLAG 1072 0 Vcc
FLAG 1200 176 Out2
FLAG 1008 192 NI2
FLAG 720 192 pulse
FLAG 48 16 Vcc
FLAG 176 560 2V_ref
FLAG -128 384 0
SYMBOL voltage -128 208 M0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value SINE(0 10 200)
SYMBOL voltage 176 576 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 2
SYMBOL voltage 64 560 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL res 320 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 528 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 500k
SYMBOL cap 624 176 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL diode 736 288 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL res 768 208 R0
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res 928 176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL res 16 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 10k
SYMBOL diode 64 144 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL diode 64 304 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value 1N4148
SYMBOL res 224 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL Comparators\\LTC6752 416 128 R0
SYMATTR InstName U3
SYMBOL Comparators\\LTC6752 1072 112 R0
SYMATTR InstName U4
SYMBOL EXTRA\\Misc\\pot 976 160 M0
WINDOW 3 17 -1 Left 1
WINDOW 123 16 26 Left 1
SYMATTR InstName U1
SYMATTR Value2 T=.4
TEXT 32 760 Left 2 !.tran 50m
TEXT -104 360 Left 2 ;Input protection
TEXT 168 360 Left 2 ;Comparator with hysteresis
TEXT 576 360 Left 2 ;Pulse generator
RECTANGLE Normal 96 416 -192 -32 2
RECTANGLE Normal 544 416 128 -32 2
RECTANGLE Normal 1152 416 560 -32 2