Version 4
SHEET 1 1108 680
WIRE 336 -16 -16 -16
WIRE 624 -16 416 -16
WIRE -16 32 -16 -16
WIRE 96 32 48 32
WIRE 496 48 288 48
WIRE 560 48 496 48
WIRE 96 80 96 64
WIRE 496 80 496 48
WIRE 496 80 384 80
WIRE -16 96 -16 32
WIRE 64 96 -16 96
WIRE 176 112 176 32
WIRE 176 112 128 112
WIRE 224 112 176 112
WIRE 64 128 -96 128
WIRE 224 128 224 112
WIRE 320 128 288 128
WIRE 496 128 496 80
WIRE 400 176 384 176
WIRE 432 176 400 176
WIRE 176 208 48 208
WIRE -16 256 -16 208
WIRE 32 256 -16 256
WIRE 64 256 32 256
WIRE 288 256 288 128
WIRE 400 256 352 256
WIRE 448 256 400 256
WIRE 496 256 496 224
WIRE 496 256 448 256
WIRE 624 256 624 -16
WIRE 624 256 496 256
WIRE 656 256 624 256
WIRE 720 256 656 256
WIRE 176 272 176 208
WIRE 176 272 128 272
WIRE 224 272 176 272
WIRE 288 272 288 256
WIRE 656 272 656 256
WIRE 64 288 -48 288
WIRE 288 288 288 272
WIRE 32 336 32 256
WIRE 128 336 32 336
WIRE 256 336 208 336
WIRE 352 336 256 336
WIRE 400 336 352 336
WIRE 448 336 448 320
WIRE 448 336 400 336
WIRE 496 336 496 320
WIRE 496 336 448 336
WIRE 656 336 496 336
WIRE 720 336 656 336
WIRE -96 416 -96 208
WIRE 256 416 256 336
WIRE 256 416 -96 416
WIRE 288 416 288 384
FLAG 96 144 0
FLAG 96 304 0
FLAG 400 416 0
FLAG -48 368 0
FLAG 560 128 0
FLAG 560 48 v+
FLAG 96 64 v+
FLAG 96 240 v+
FLAG 288 416 0
SYMBOL Opamps\\UniversalOpamp2 96 112 R0
SYMATTR InstName U1
SYMBOL Opamps\\UniversalOpamp2 96 272 R0
SYMATTR InstName U2
SYMBOL diode 288 112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMBOL diode 288 256 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMBOL npn 320 80 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL npn 432 128 R0
SYMATTR InstName Q2
SYMATTR Value 2N3055
SYMBOL res 272 32 R0
SYMATTR InstName R1
SYMATTR Value 5k
SYMBOL res 384 160 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL res 384 320 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 48 16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 1n
SYMBOL cap 48 192 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 0.5
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 5
SYMATTR InstName V3
SYMBOL res 224 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL res 432 -32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 5k
SYMBOL current 720 256 R0
WINDOW 123 -76 -31 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -191 122 Left 2
SYMATTR Value2 AC 1
SYMATTR Value PULSE(0.1 0.2 1m 1u 1u 5m)
SYMATTR InstName I1
SYMBOL res 192 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 22k
SYMBOL cap 640 272 R0
SYMATTR InstName C5
SYMATTR Value 1p
SYMATTR SpiceLine Rser=0.01
SYMBOL npn 352 288 M0
SYMATTR InstName Q3
SYMBOL diode 352 240 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D3
TEXT 360 464 Left 2 !;tran 10m
TEXT 360 504 Left 2 !.ac oct 50 1 10meg