Version 4
SHEET 1 1108 680
WIRE 64 -80 -16 -80
WIRE 144 -80 64 -80
WIRE 208 -80 144 -80
WIRE 336 -80 208 -80
WIRE 624 -80 416 -80
WIRE 496 -32 272 -32
WIRE 560 -32 496 -32
WIRE 560 -16 560 -32
WIRE 496 0 496 -32
WIRE 496 0 400 0
WIRE -16 32 -16 -80
WIRE 0 32 -16 32
WIRE 64 48 64 -16
WIRE 208 48 64 48
WIRE 224 48 208 48
WIRE 336 48 272 48
WIRE 496 48 496 0
WIRE -240 64 -256 64
WIRE -224 64 -240 64
WIRE 0 64 -48 64
WIRE 624 64 624 -80
WIRE 656 64 624 64
WIRE 272 96 272 48
WIRE 304 96 272 96
WIRE 400 96 368 96
WIRE 432 96 400 96
WIRE 720 112 720 80
WIRE -240 128 -240 64
WIRE -224 128 -240 128
WIRE 272 128 272 96
WIRE 400 128 272 128
WIRE -224 144 -224 128
WIRE -144 144 -144 64
WIRE -144 144 -160 144
WIRE -48 144 -48 64
WIRE -48 144 -64 144
WIRE -224 160 -256 160
WIRE 144 160 144 -16
WIRE 160 160 144 160
WIRE 272 160 272 128
WIRE 272 160 240 160
WIRE 144 176 80 176
WIRE 368 176 368 96
WIRE 496 176 496 144
WIRE 496 176 464 176
WIRE -336 192 -336 160
WIRE -256 208 -256 160
WIRE -48 224 -48 144
WIRE -48 224 -128 224
WIRE 16 240 16 176
WIRE 64 240 16 240
WIRE 400 240 400 224
WIRE 144 256 144 176
WIRE 144 256 128 256
WIRE 208 256 144 256
WIRE 272 256 272 160
WIRE 304 256 272 256
WIRE -128 272 -128 224
WIRE 64 272 -48 272
WIRE -336 288 -336 272
WIRE -48 288 -48 272
WIRE 96 304 96 288
WIRE 368 320 368 256
WIRE 400 320 368 320
WIRE 448 320 400 320
WIRE 496 320 496 256
WIRE 496 320 448 320
WIRE 624 320 624 64
WIRE 624 320 496 320
WIRE 720 320 624 320
WIRE 784 320 720 320
WIRE 880 320 784 320
WIRE 16 336 16 240
WIRE 720 336 720 320
WIRE -256 400 -256 288
WIRE -128 400 -128 336
WIRE -128 400 -256 400
WIRE 96 400 96 336
WIRE 96 400 -128 400
WIRE 448 400 448 384
WIRE 448 400 96 400
WIRE 496 400 496 384
WIRE 496 400 448 400
WIRE 624 400 624 384
WIRE 624 400 496 400
WIRE 720 400 624 400
WIRE 784 400 720 400
WIRE 880 400 784 400
FLAG 32 80 0
FLAG 96 304 0
FLAG 448 480 0
FLAG -48 368 0
FLAG 560 64 0
FLAG 560 -32 v+
FLAG 32 16 v+
FLAG 96 224 v+
FLAG 656 160 0
FLAG 720 0 v+
FLAG -336 288 0
FLAG -192 112 v+
FLAG -192 176 0
FLAG -336 64 0
SYMBOL Opamps\\UniversalOpamp2 32 48 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 272 240 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL npn 336 0 R0
SYMATTR InstName Q1
SYMATTR Value 2N3019
SYMBOL npn 432 48 R0
SYMATTR InstName Q2
SYMATTR Value 2N3055
SYMBOL res 256 -48 R0
SYMATTR InstName R1
SYMATTR Value 5k
SYMBOL res 352 160 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL res 432 384 R0
SYMATTR InstName R4
SYMATTR Value 0.1
SYMBOL cap 480 320 R0
SYMATTR InstName C1
SYMATTR Value 100n
SYMATTR SpiceLine Rser=10m
SYMBOL cap 432 320 R0
WINDOW 3 -56 34 Left 2
SYMATTR Value 10µ
SYMATTR InstName C2
SYMATTR SpiceLine Rser=0.5
SYMBOL cap 160 -16 R180
WINDOW 0 24 56 Left 2
WINDOW 3 39 29 Left 2
SYMATTR InstName C3
SYMATTR Value 5n
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 -32 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 0.1
SYMBOL voltage -336 176 R0
WINDOW 3 -10 56 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 34 53 Left 2
SYMATTR Value 15
SYMATTR InstName V3
SYMBOL res 112 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL res 432 -96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 5k
SYMBOL current 784 320 R0
WINDOW 123 -76 -31 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -215 150 Left 2
SYMATTR Value2 AC 1
SYMATTR Value PULSE(0.001 0.1 1m 1u 1u 2m)
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 22k
SYMBOL cap 704 336 R0
SYMATTR InstName C5
SYMATTR Value 1p
SYMATTR SpiceLine Rser=1m
SYMBOL npn 464 128 M0
SYMATTR InstName Q3
SYMATTR Value 2N3904
SYMBOL schottky 640 384 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D4
SYMATTR Value MBR745
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL diode 224 48 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 -80 R0
WINDOW 3 -34 34 Left 2
SYMATTR Value 200p
SYMATTR InstName C4
SYMBOL res 480 160 R0
SYMATTR InstName R3
SYMATTR Value 0.4
SYMBOL diode 368 80 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 200k
SYMBOL res 384 224 R0
SYMATTR InstName R10
SYMATTR Value 10
SYMBOL diode 368 240 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D7
SYMBOL diode 272 32 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMBOL current 880 320 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 4m 1u 1u 500u)
SYMATTR InstName I2
SYMBOL res -272 192 R0
SYMATTR InstName R14
SYMATTR Value 100k
SYMBOL Opamps\\UniversalOpamp2 -192 144 R0
WINDOW 0 -26 0 Left 2
SYMATTR InstName U3
SYMATTR Value2 Avol=1Meg GBW=0.8Meg Slew=0.3Meg
SYMBOL res -352 176 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R9
SYMATTR Value 100k
SYMBOL res -352 80 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R11
SYMATTR Value 22k
SYMBOL res -240 80 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R12
SYMATTR Value 22k
SYMBOL res -48 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 5k
SYMBOL cap -144 272 R0
SYMATTR InstName C7
SYMATTR Value 100n
TEXT 792 200 Left 2 !.tran 6m
TEXT 784 136 Left 2 !;ac oct 50 1 10meg