Version 4
SHEET 1 3016 804
WIRE 496 -144 464 -144
WIRE 736 -144 576 -144
WIRE 944 -144 736 -144
WIRE 1328 -144 944 -144
WIRE 736 -128 736 -144
WIRE 976 -80 864 -80
WIRE 1072 -80 1056 -80
WIRE 1328 -64 1328 -144
WIRE 944 -48 944 -144
WIRE 864 -32 864 -80
WIRE 912 -32 864 -32
WIRE 1072 -16 1072 -80
WIRE 1072 -16 976 -16
WIRE 1104 -16 1072 -16
WIRE 1200 -16 1168 -16
WIRE 1264 -16 1200 -16
WIRE 736 0 736 -48
WIRE 912 0 736 0
WIRE 1200 32 1200 -16
WIRE 224 64 192 64
WIRE 304 64 224 64
WIRE 576 64 528 64
WIRE 624 64 576 64
WIRE 688 64 624 64
WIRE 864 64 864 -32
WIRE 192 80 192 64
WIRE 624 80 624 64
WIRE 112 96 -240 96
WIRE 144 96 112 96
WIRE 304 96 304 64
WIRE 528 96 528 64
WIRE -240 128 -240 96
WIRE 112 144 -160 144
WIRE 144 144 112 144
WIRE -160 160 -160 144
WIRE 864 160 864 128
WIRE 1200 160 1200 112
WIRE 1328 160 1328 32
WIRE 1328 160 1200 160
WIRE 624 176 624 144
WIRE 736 176 736 96
WIRE 736 176 624 176
WIRE 528 192 528 176
WIRE 736 192 736 176
WIRE 1200 192 1200 160
WIRE 1328 192 1328 160
WIRE 624 208 624 176
WIRE -240 288 -240 208
WIRE -160 288 -160 240
WIRE -160 288 -240 288
WIRE 192 288 192 160
WIRE 192 288 -160 288
WIRE 304 288 304 176
WIRE 304 288 192 288
WIRE 528 288 528 272
WIRE 528 288 304 288
WIRE 624 288 624 272
WIRE 624 288 528 288
WIRE 736 288 736 272
WIRE 736 288 624 288
WIRE 864 288 864 240
WIRE 864 288 736 288
WIRE 944 288 944 16
WIRE 944 288 864 288
WIRE 1200 288 1200 256
WIRE 1200 288 944 288
WIRE 1328 288 1328 272
WIRE 1328 288 1200 288
WIRE -240 304 -240 288
FLAG -240 304 0
FLAG 112 96 takt
FLAG 112 144 carr
FLAG 224 64 src
FLAG 464 -144 0
FLAG 576 64 in
SYMBOL voltage -160 144 R0
WINDOW 0 32 83 Left 2
WINDOW 3 -36 113 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 1 77.5k)
SYMATTR SpiceLine ""
SYMATTR Value2 AC 1
SYMBOL voltage -240 112 R0
WINDOW 0 -72 42 Left 2
WINDOW 3 -144 9 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(1 0.25 20m 1m 1m 100m 200m)
SYMATTR SpiceLine ""
SYMATTR Value2 AC 1
SYMBOL bi 192 80 R0
WINDOW 0 40 65 Left 2
WINDOW 3 -289 96 Left 2
SYMATTR InstName B2
SYMATTR Value I = V(takt) * V(carr) * 0.00142
SYMBOL ind2 288 80 R0
WINDOW 0 -24 36 Left 2
WINDOW 3 -21 78 Left 2
SYMATTR InstName L1
SYMATTR Value 1µ
SYMATTR Type ind
SYMBOL ind2 544 192 R180
WINDOW 0 -26 69 Left 2
WINDOW 3 -62 39 Left 2
SYMATTR InstName L2
SYMATTR Value 4.09m
SYMATTR Type ind
SYMATTR SpiceLine Rser=2 Rpar=50k Cpar=30p
SYMBOL cap 608 80 R0
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL voltage 592 -144 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 8V
SYMATTR Value2 ""
SYMATTR SpiceLine ""
SYMBOL res 720 176 R0
SYMATTR InstName R3
SYMATTR Value 1.2k
SYMATTR SpiceLine ""
SYMBOL cap 608 208 R0
SYMATTR InstName C2
SYMATTR Value {C_var}
SYMATTR SpiceLine ""
SYMBOL res 720 -144 R0
WINDOW 0 -39 45 Left 2
WINDOW 3 -52 81 Left 2
SYMATTR InstName R5
SYMATTR Value 4.7k
SYMATTR SpiceLine ""
SYMBOL bv 528 176 R0
WINDOW 0 33 34 Left 2
WINDOW 3 -75 104 Invisible 2
SYMATTR InstName B1
SYMATTR Value V = white(357987*time) * 2.8 * 1e-5
SYMBOL njf 688 0 R0
WINDOW 3 27 55 Left 2
SYMATTR Value BF245A
SYMATTR InstName J1
SYMBOL cap 1168 0 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value 470µ
SYMATTR SpiceLine ""
SYMBOL res 1312 288 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R1
SYMATTR Value 4.7k
SYMATTR SpiceLine ""
SYMBOL res 1184 128 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 1Meg
SYMATTR SpiceLine ""
SYMBOL cap 1184 256 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C4
SYMATTR Value 1µ
SYMATTR SpiceLine ""
SYMBOL res 848 144 R0
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL res 1072 -96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 22k
SYMBOL cap 848 64 R0
SYMATTR InstName C6
SYMATTR Value 100n
SYMBOL pnp 1264 32 M180
SYMATTR InstName Q1
SYMATTR Value BC557C
SYMBOL Opamps\\LT1055 944 -80 R0
SYMATTR InstName U2
TEXT 336 136 Left 2 !K1 L1 L2 3e-4
TEXT -80 -160 Left 2 !.tran 0 600m 0 500n
TEXT -80 -128 Left 2 !;ac dec 10000 50k 100k
TEXT -80 -64 Left 2 ;.step param C_var LIST 120n 180n 10u
TEXT -80 -32 Left 2 !.param C_var=120n
TEXT 328 72 Left 2 ;Spannung ohne\nRückkopplung
TEXT 960 48 Left 2 ;(TL084)