Version 4
SHEET 1 1264 680
WIRE 160 -48 16 -48
WIRE 272 -48 224 -48
WIRE 384 -48 272 -48
WIRE 1008 -48 464 -48
WIRE 80 -16 80 -64
WIRE 16 0 16 -48
WIRE 48 0 16 0
WIRE 160 16 160 -48
WIRE 160 16 112 16
WIRE 336 16 160 16
WIRE -240 32 -240 16
WIRE 48 32 -112 32
WIRE 336 32 336 16
WIRE 80 64 80 48
WIRE 224 80 224 -48
WIRE 272 80 224 80
WIRE -240 144 -240 112
WIRE -240 144 -272 144
WIRE 336 144 336 128
WIRE 368 144 336 144
WIRE 384 144 368 144
WIRE 496 144 464 144
WIRE 576 144 496 144
WIRE 656 144 640 144
WIRE 688 144 656 144
WIRE 720 144 688 144
WIRE 832 144 800 144
WIRE 912 144 832 144
WIRE 1008 144 1008 -48
WIRE 1008 144 992 144
WIRE -112 160 -112 32
WIRE -80 160 -112 160
WIRE 16 160 0 160
WIRE 336 160 336 144
WIRE -240 176 -240 144
WIRE -112 208 -112 160
WIRE 224 208 224 80
WIRE 272 208 224 208
WIRE 560 208 560 112
WIRE 896 208 896 112
WIRE 16 224 16 160
WIRE 96 224 16 224
WIRE 192 224 176 224
WIRE 496 224 496 144
WIRE 528 224 496 224
WIRE 864 224 800 224
WIRE 80 240 80 208
WIRE 656 240 656 144
WIRE 656 240 592 240
WIRE 1008 240 1008 144
WIRE 1008 240 928 240
WIRE 16 256 16 224
WIRE 48 256 16 256
WIRE 528 256 496 256
WIRE 832 256 832 144
WIRE 864 256 832 256
WIRE -240 272 -240 256
WIRE 192 272 192 224
WIRE 192 272 112 272
WIRE 336 272 336 256
WIRE 336 272 192 272
WIRE 48 288 16 288
WIRE 560 288 560 272
WIRE 896 288 896 272
WIRE 496 304 496 256
WIRE 800 304 800 224
WIRE -112 320 -112 288
WIRE 16 320 16 288
WIRE 80 320 80 304
FLAG 80 64 -5V
IOPIN 80 64 In
FLAG 80 320 -5V
IOPIN 80 320 In
FLAG 80 208 5V
IOPIN 80 208 In
FLAG 80 -64 5V
IOPIN 80 -64 In
FLAG 560 112 5V
IOPIN 560 112 In
FLAG 560 288 -5V
IOPIN 560 288 In
FLAG 496 304 0
FLAG 896 112 5V
IOPIN 896 112 In
FLAG 896 288 -5V
IOPIN 896 288 In
FLAG 800 304 0
FLAG -112 320 0
FLAG 16 320 0
FLAG 272 -48 B
FLAG 368 144 E
FLAG 688 144 int
FLAG -272 144 0
FLAG -240 16 5V
IOPIN -240 16 Out
FLAG -240 272 -5V
IOPIN -240 272 Out
SYMBOL Opamps\\LT1055 80 -48 R0
SYMATTR InstName U1
SYMBOL Opamps\\LT1055 80 208 R0
WINDOW 0 23 89 Left 2
WINDOW 3 24 122 Left 2
SYMATTR InstName U2
SYMBOL npn 272 32 R0
WINDOW 0 70 47 Left 2
WINDOW 3 69 16 Left 2
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL pnp 272 256 M180
WINDOW 3 83 -2 Left 2
SYMATTR InstName Q2
SYMATTR Value BC557C
SYMBOL res 480 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL cap 640 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL Opamps\\LT1055 560 176 R0
SYMATTR InstName U3
SYMBOL res 816 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 27k
SYMBOL res 1008 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL res 480 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL voltage -112 192 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 2V
SYMBOL res -96 176 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res 192 208 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL voltage -240 16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5V
SYMBOL voltage -240 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 5V
SYMBOL Comparators\\LT1018 896 240 R0
SYMATTR InstName U5
TEXT -274 -96 Left 2 !.tran 0 10ms 0 1u uic