Version 4
SHEET 1 944 680
WIRE -128 -256 -464 -256
WIRE 256 -256 64 -256
WIRE -128 -240 -128 -256
WIRE 64 -144 64 -256
WIRE -128 -128 -128 -160
WIRE 256 -32 256 -256
WIRE 288 -32 256 -32
WIRE 448 -32 352 -32
WIRE 528 -32 448 -32
WIRE -128 -16 -128 -48
WIRE 448 16 448 -32
WIRE 528 32 528 -32
WIRE 560 32 528 32
WIRE 880 32 752 32
WIRE 880 80 880 32
WIRE 256 112 256 -32
WIRE -464 128 -464 -256
WIRE 560 128 528 128
WIRE 784 128 752 128
WIRE -128 144 -128 64
WIRE 224 144 -128 144
WIRE 880 176 880 160
WIRE 64 192 64 -64
WIRE 448 192 448 96
WIRE 528 192 528 128
WIRE 528 192 448 192
WIRE -128 208 -128 144
WIRE -464 320 -464 208
WIRE -128 320 -128 288
WIRE -128 320 -464 320
WIRE 64 320 64 272
WIRE 64 320 -128 320
WIRE 256 320 256 176
WIRE 256 320 64 320
WIRE 448 320 448 192
WIRE 448 320 256 320
WIRE 784 320 784 128
WIRE 880 320 880 256
WIRE 880 320 784 320
WIRE 64 384 64 320
WIRE 880 384 880 320
FLAG 64 384 0
FLAG 880 32 arduino
FLAG -464 -256 Zwischenkreis
FLAG 880 384 0
SYMBOL voltage 64 176 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 13
SYMBOL Misc\\EuropeanResistor -144 -32 R0
SYMATTR InstName R1
SYMATTR Value 1e6
SYMBOL Misc\\EuropeanResistor -144 192 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL Misc\\EuropeanResistor 48 -160 R0
SYMATTR InstName R3
SYMATTR Value 1.2K
SYMBOL TL431 256 144 M0
SYMATTR InstName U1
SYMBOL Optos\\PC817C 656 80 R0
SYMATTR InstName U2
SYMBOL Misc\\EuropeanResistor 432 0 R0
SYMATTR InstName R4
SYMATTR Value 2.7K
SYMBOL Misc\\EuropeanResistor -144 -144 R0
SYMATTR InstName R5
SYMATTR Value 1e6
SYMBOL Misc\\EuropeanResistor -144 -256 R0
SYMATTR InstName R6
SYMATTR Value 1e6
SYMBOL voltage -464 112 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value SINE(500 500 1)
SYMBOL Misc\\EuropeanResistor 864 64 R0
SYMATTR InstName R7
SYMATTR Value 22K
SYMBOL voltage 880 160 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL zener 352 -48 R90
WINDOW 0 -4 32 VBottom 2
WINDOW 3 36 32 VTop 2
SYMATTR InstName D1
SYMATTR Value 1N750
TEXT 32 408 Left 2 !.tran 0.6
TEXT 112 408 Left 2 !.inc TL431_texas.cir