Version 4
SHEET 1 1612 680
WIRE -368 -1024 -384 -1024
WIRE -512 -976 -512 -992
WIRE -464 -976 -464 -1024
WIRE -448 -976 -464 -976
WIRE -304 -944 -304 -1024
WIRE -304 -944 -352 -944
WIRE -160 -944 -160 -960
WIRE 0 -912 0 -960
WIRE 32 -912 0 -912
WIRE 0 -896 0 -912
WIRE -416 -880 -416 -896
WIRE -688 -864 -704 -864
WIRE -560 -864 -608 -864
WIRE -512 -864 -512 -896
WIRE -512 -864 -560 -864
WIRE -464 -864 -464 -976
WIRE -464 -864 -512 -864
WIRE -448 -864 -464 -864
WIRE -352 -848 -352 -944
WIRE -352 -848 -384 -848
WIRE -256 -848 -352 -848
WIRE -160 -848 -160 -864
WIRE -160 -848 -192 -848
WIRE -64 -848 -160 -848
WIRE 32 -848 32 -912
WIRE 144 -848 32 -848
WIRE 352 -848 352 -864
WIRE -448 -832 -464 -832
WIRE 416 -816 416 -864
WIRE -688 -800 -704 -800
WIRE -560 -800 -608 -800
WIRE -512 -800 -560 -800
WIRE -464 -800 -464 -832
WIRE -464 -800 -512 -800
WIRE -416 -800 -416 -816
WIRE 64 -800 0 -800
WIRE 80 -800 64 -800
WIRE 352 -800 352 -816
WIRE 352 -800 304 -800
WIRE 304 -784 304 -800
WIRE 352 -784 352 -800
WIRE -512 -768 -512 -800
WIRE 176 -752 144 -752
WIRE 32 -736 32 -848
WIRE 144 -736 32 -736
WIRE 352 -736 352 -752
WIRE 416 -736 416 -784
WIRE 64 -688 64 -800
WIRE 80 -688 64 -688
WIRE -512 -672 -512 -688
WIRE 176 -640 144 -640
WIRE 256 -640 256 -752
WIRE 304 -640 256 -640
WIRE 368 -640 304 -640
WIRE 464 -640 448 -640
WIRE 496 -640 464 -640
WIRE 512 -640 496 -640
WIRE -512 -624 -512 -640
WIRE 32 -624 32 -736
WIRE 144 -624 32 -624
WIRE 304 -624 304 -640
WIRE 496 -592 496 -640
WIRE 608 -592 496 -592
WIRE 64 -576 64 -688
WIRE 80 -576 64 -576
WIRE 464 -560 464 -640
WIRE 176 -528 144 -528
WIRE 256 -528 256 -640
WIRE 32 -512 32 -624
WIRE 144 -512 32 -512
WIRE 64 -464 64 -576
WIRE 80 -464 64 -464
WIRE 608 -448 608 -512
WIRE 608 -448 512 -448
WIRE 176 -416 144 -416
WIRE 256 -416 256 -528
WIRE 464 -416 464 -496
WIRE 512 -416 512 -448
WIRE 512 -416 464 -416
WIRE 528 -416 512 -416
WIRE 64 -368 64 -464
WIRE 256 -368 256 -416
WIRE 256 -368 144 -368
FLAG -160 -960 +8V
FLAG -416 -896 +8V
FLAG -416 -800 -8V
FLAG 0 -960 Vin
FLAG -512 -992 0
FLAG 304 -624 0
FLAG 512 -640 out+
FLAG 528 -416 out-
FLAG 304 -784 0
FLAG 416 -736 out-
FLAG 352 -864 +8V
FLAG 352 -736 -8V
FLAG 416 -864 Vin
FLAG -512 -624 0
FLAG -704 -864 out+
FLAG -704 -800 out-
SYMBOL EXTRA\\AudioOpamp\\TI\\TL071 -416 -848 R0
SYMATTR InstName U1
SYMBOL diode -192 -864 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL res -176 -960 R0
SYMATTR InstName R2
SYMATTR Value 470
SYMBOL npn -64 -896 R0
SYMATTR InstName Q2
SYMBOL npn 80 -848 R0
SYMATTR InstName Q3
SYMBOL npn 80 -736 R0
SYMATTR InstName Q4
SYMBOL npn 80 -624 R0
SYMATTR InstName Q5
SYMBOL res 272 -768 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 0.2
SYMBOL res 272 -656 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 0.2
SYMBOL res 272 -544 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 0.2
SYMBOL npn 80 -512 R0
SYMATTR InstName Q1
SYMBOL res 272 -432 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 0.2
SYMBOL cap -304 -1040 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL diode -528 -864 R0
WINDOW 3 -74 -21 Left 2
SYMATTR InstName D3
SYMATTR Value 1N4148
SYMBOL diode -544 -800 R180
WINDOW 0 24 64 Left 2
WINDOW 3 -27 -20 Left 2
SYMATTR InstName D4
SYMATTR Value 1N4148
SYMBOL res -528 -784 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res -528 -992 R0
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL res -592 -816 R90
WINDOW 0 87 61 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 6,8k
SYMBOL res -592 -880 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 -54 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 6,8k
SYMBOL res 464 -656 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 0.1
SYMBOL cap 448 -560 R0
SYMATTR InstName C2
SYMATTR Value 10µ
SYMBOL MiniSyms4\\voltage- 352 -832 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 8
SYMBOL MiniSyms4\\voltage- 352 -768 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 8
SYMBOL MiniSyms4\\voltage- 416 -800 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 20
SYMBOL MiniSyms4\\voltage- -512 -656 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 1.3
SYMBOL current 608 -592 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 108 Left 2
SYMATTR InstName I1
SYMATTR Value PULSE(0.5 4 0 0 0 0.001 0.002)
SYMATTR SpiceLine load
SYMBOL res 160 -384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 200
SYMBOL res -368 -1040 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R12
SYMATTR Value 50k
TEXT -716 -698 Left 2 !.tran 0.005
TEXT -480 -648 Left 2 ;Vset