Version 4
SHEET 1 1112 680
WIRE 544 -144 -64 -144
WIRE 752 -144 544 -144
WIRE -64 -112 -64 -144
WIRE 544 -112 544 -144
WIRE 544 -16 544 -32
WIRE 544 -16 416 -16
WIRE 544 0 544 -16
WIRE 752 80 752 -144
WIRE 752 80 688 80
WIRE -64 112 -64 -32
WIRE 544 112 544 80
WIRE 752 112 752 80
WIRE 688 128 688 80
WIRE 16 208 -64 208
WIRE 128 208 96 208
WIRE 368 208 320 208
WIRE 416 208 416 -16
WIRE 416 208 368 208
WIRE 688 224 688 192
WIRE 752 224 752 192
WIRE 752 224 688 224
WIRE -64 240 -64 208
WIRE 752 256 752 224
WIRE 128 304 96 304
WIRE 368 304 320 304
WIRE 544 304 368 304
WIRE 688 304 544 304
WIRE -64 352 -64 320
WIRE 96 352 96 304
WIRE 544 384 544 304
WIRE 544 496 544 464
WIRE 752 496 752 352
FLAG -64 352 0
FLAG 96 352 0
FLAG -64 208 Vout
FLAG -64 112 0
FLAG 544 496 0
FLAG 544 112 0
FLAG -64 -144 40V
FLAG 752 496 0
FLAG 368 208 U1C
FLAG 368 304 U1E
SYMBOL Optos\\PC817A 224 256 R0
SYMATTR InstName U1
SYMBOL voltage -64 224 R0
WINDOW 3 -31 183 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(0 2.7 0 100µ 100µ 500m 1 5)
SYMBOL res 112 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL voltage -64 -128 R0
WINDOW 3 24 91 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 40
SYMBOL res 528 368 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res 528 -128 R0
SYMATTR InstName R3
SYMATTR Value 33k
SYMBOL res 528 -16 R0
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL npn 688 256 R0
SYMATTR InstName Q1
SYMATTR Value BC547B
SYMBOL ind2 736 96 R0
SYMATTR InstName L1
SYMATTR Value 100m
SYMATTR Type ind
SYMATTR SpiceLine Rser=2k
SYMBOL diode 704 192 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N4148
TEXT -98 428 Left 2 !.tran 5
TEXT 856 136 Left 4 ;Relais
TEXT 168 152 Left 2 ;PV = 0.96 mW
TEXT 816 288 Left 2 ;PV = 1,1 mW
TEXT 856 176 Left 2 ;2 KOhm\nohmscher Widerstand
TEXT -24 152 Left 2 ;max. 1,7 mA
TEXT 352 224 Left 2 ;max. 1,1 mA