Version 4
SHEET 1 1132 680
WIRE 624 -80 512 -80
WIRE 0 -48 0 -64
WIRE 16 -48 0 -48
WIRE 80 -48 80 -64
WIRE 80 -48 64 -48
WIRE 512 -32 512 -80
WIRE 0 0 -48 0
WIRE 144 0 80 0
WIRE 144 64 144 0
WIRE 512 96 512 48
WIRE -48 112 -48 0
WIRE 96 112 -48 112
WIRE 256 112 208 64
WIRE 336 112 256 112
WIRE 96 144 96 112
WIRE 256 144 256 112
WIRE 336 144 336 112
WIRE 448 144 416 144
WIRE 512 224 512 192
WIRE 512 224 336 224
WIRE 96 256 96 224
WIRE 176 256 96 256
WIRE 256 256 256 208
WIRE 256 256 176 256
WIRE 336 256 336 224
WIRE 336 256 256 256
WIRE 512 256 512 224
WIRE 512 368 512 336
WIRE 624 368 624 -80
WIRE 624 368 512 368
FLAG 176 256 0
FLAG 80 -48 0
SYMBOL voltage 96 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 12 50 .1)
SYMBOL cap 240 144 R0
SYMATTR InstName C1
SYMATTR Value 1µ
SYMATTR SpiceLine V=16
SYMBOL res 432 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 5700
SYMBOL npn 448 96 R0
SYMATTR InstName Q1
SYMATTR Value ZTX1048A
SYMBOL res 496 240 R0
SYMATTR InstName Summer
SYMATTR Value 187
SYMBOL voltage 512 64 R180
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 3
SYMBOL diode 144 80 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MURS120
SYMBOL sw 96 0 R90
SYMATTR InstName S1
SYMBOL voltage -16 -64 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 10 1 .3 .3 1)
TEXT -50 374 Left 2 !.tran 8
TEXT -496 -160 Left 2 !.model Lichtschalter SW(Ron=.1 Roff=100Meg Vt=5 Vh=-.5 Lser=10n Vser=0)