Version 4
SHEET 1 1108 680
WIRE 64 -48 -16 -48
WIRE 144 -48 64 -48
WIRE 208 -48 144 -48
WIRE 336 -48 208 -48
WIRE 624 -48 416 -48
WIRE 496 0 288 0
WIRE 560 0 496 0
WIRE 560 16 560 0
WIRE 496 32 496 0
WIRE 496 32 400 32
WIRE -16 64 -16 -48
WIRE 0 64 -16 64
WIRE 624 64 624 -48
WIRE 656 64 624 64
WIRE 64 80 64 16
WIRE 208 80 64 80
WIRE 224 80 208 80
WIRE 336 80 288 80
WIRE 496 80 496 32
WIRE 0 96 -96 96
WIRE 720 112 720 80
WIRE -96 128 -96 96
WIRE 288 128 288 80
WIRE 304 128 288 128
WIRE 400 128 368 128
WIRE 432 128 400 128
WIRE 144 160 144 16
WIRE 160 160 144 160
WIRE 288 160 288 128
WIRE 288 160 240 160
WIRE 144 176 80 176
WIRE 400 176 400 128
WIRE 16 240 16 176
WIRE 64 240 16 240
WIRE 144 256 144 176
WIRE 144 256 128 256
WIRE 224 256 144 256
WIRE 288 256 288 160
WIRE 304 256 288 256
WIRE 400 256 368 256
WIRE 448 256 400 256
WIRE 496 256 448 256
WIRE 624 256 624 64
WIRE 624 256 496 256
WIRE 720 256 624 256
WIRE 784 256 720 256
WIRE 880 256 784 256
WIRE 64 272 -48 272
WIRE 720 272 720 256
WIRE -48 288 -48 272
WIRE 96 304 96 288
WIRE 288 304 288 256
WIRE 16 336 16 240
WIRE 112 336 16 336
WIRE 432 336 192 336
WIRE 448 336 448 320
WIRE 448 336 432 336
WIRE 496 336 496 320
WIRE 496 336 448 336
WIRE 624 336 624 320
WIRE 624 336 496 336
WIRE 720 336 624 336
WIRE 784 336 720 336
WIRE 880 336 784 336
WIRE 432 352 432 336
WIRE -96 416 -96 208
WIRE 192 416 192 336
WIRE 192 416 -96 416
FLAG 32 112 0
FLAG 96 304 0
FLAG 448 416 0
FLAG -48 368 0
FLAG 560 96 0
FLAG 560 0 v+
FLAG 32 48 v+
FLAG 96 224 v+
FLAG 656 160 0
FLAG 720 0 v+
FLAG 288 480 0
SYMBOL Opamps\\UniversalOpamp2 32 80 R0
WINDOW 0 -26 0 Left 2
SYMATTR InstName U1
SYMATTR Value2 Avol=1Meg GBW=0.8Meg Slew=0.3Meg
SYMBOL Opamps\\UniversalOpamp2 96 256 R0
SYMATTR InstName U2
SYMATTR Value2 Avol=1Meg GBW=0.8Meg Slew=0.3Meg
SYMBOL diode 288 240 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMBOL npn 336 32 R0
SYMATTR InstName Q1
SYMATTR Value 2N3019
SYMBOL npn 432 80 R0
SYMATTR InstName Q2
SYMATTR Value 2N3055
SYMBOL res 272 -16 R0
SYMATTR InstName R1
SYMATTR Value 5k
SYMBOL res 384 160 R0
SYMATTR InstName R2
SYMATTR Value 50
SYMBOL res 432 320 R0
SYMATTR InstName R4
SYMATTR Value 0.5
SYMBOL cap 480 256 R0
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL cap 432 256 R0
WINDOW 3 -56 34 Left 2
SYMATTR Value 10µ
SYMATTR InstName C2
SYMATTR SpiceLine Rser=0.2
SYMBOL cap 160 16 R180
WINDOW 0 24 56 Left 2
WINDOW 3 39 29 Left 2
SYMATTR InstName C3
SYMATTR Value 1n
SYMBOL cap 80 160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 100p
SYMBOL voltage 560 0 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 26 35 Left 2
WINDOW 3 -13 56 Left 2
SYMATTR InstName V1
SYMATTR Value 20
SYMBOL voltage -48 272 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 36 58 Left 2
WINDOW 3 -16 57 Left 2
SYMATTR InstName V2
SYMATTR Value 0.5
SYMBOL voltage -96 112 R0
WINDOW 3 -9 57 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 34 53 Left 2
SYMATTR Value 2
SYMATTR InstName V3
SYMBOL res 208 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 5k
SYMBOL res 432 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 5k
SYMBOL current 784 256 R0
WINDOW 123 -76 -31 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -199 153 Left 2
SYMATTR Value2 AC 1
SYMATTR Value PULSE(0.001 0.8 1m 1u 1u 1m)
SYMATTR InstName I1
SYMBOL res 144 176 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 30k
SYMBOL cap 704 272 R0
SYMATTR InstName C5
SYMATTR Value 1p
SYMATTR SpiceLine Rser=1m
SYMBOL npn 352 304 M0
SYMATTR InstName Q3
SYMATTR Value 2N3904
SYMBOL diode 640 320 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D4
SYMBOL diode 224 80 R180
WINDOW 0 35 32 Left 2
WINDOW 3 -13 41 Left 2
SYMATTR InstName D5
SYMBOL diode 224 16 R180
WINDOW 0 32 36 Left 2
WINDOW 3 -22 32 Left 2
SYMATTR InstName D6
SYMBOL cap 48 -48 R0
WINDOW 3 -34 34 Left 2
SYMATTR Value 500p
SYMATTR InstName C4
SYMBOL res 480 160 R0
SYMATTR InstName R3
SYMATTR Value 0.2
SYMBOL diode 368 112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D3
SYMBOL npn 720 64 M0
SYMATTR InstName Q4
SYMBOL res 704 -16 R0
SYMATTR InstName R6
SYMATTR Value 300k
SYMBOL res 448 336 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 100
SYMBOL res 272 384 R0
SYMATTR InstName R10
SYMATTR Value 30
SYMBOL diode 368 240 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D7
SYMBOL diode 288 64 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMATTR Value 1N914
SYMBOL current 880 256 R0
WINDOW 123 -76 -31 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -189 114 Left 2
SYMATTR Value2 AC 0
SYMATTR Value PULSE(0.0 5 3m 1u 1u 100u)
SYMATTR InstName I2
TEXT 360 464 Left 2 !.tran 6m
TEXT 528 464 Left 2 !;ac oct 50 1 10meg