Version 4 SHEET 1 1052 680 WIRE -368 -160 -416 -160 WIRE -256 -160 -288 -160 WIRE -128 -160 -176 -160 WIRE 144 -160 64 -160 WIRE 256 -160 144 -160 WIRE 384 -160 256 -160 WIRE 384 -144 384 -160 WIRE -416 -96 -416 -160 WIRE -128 -96 -128 -160 WIRE 64 -80 64 -160 WIRE 384 -16 384 -80 WIRE 576 -16 384 -16 WIRE 576 0 576 -16 WIRE 640 0 576 0 WIRE 960 0 832 0 WIRE -128 16 -128 -16 WIRE 144 16 -128 16 WIRE 320 16 224 16 WIRE 384 32 384 -16 WIRE -128 48 -128 16 WIRE 960 48 960 0 WIRE -416 80 -416 -16 WIRE 640 96 576 96 WIRE 864 96 832 96 WIRE 256 112 256 -160 WIRE -416 128 -416 80 WIRE -128 144 -128 128 WIRE 224 144 -128 144 WIRE 384 144 384 112 WIRE 576 144 576 96 WIRE 576 144 384 144 WIRE 64 192 64 0 WIRE 320 192 320 16 WIRE 496 192 320 192 WIRE 576 192 576 144 WIRE 576 192 560 192 WIRE -128 208 -128 144 WIRE 960 208 960 128 WIRE 576 240 576 192 WIRE 496 272 496 192 WIRE 544 272 496 272 WIRE -416 320 -416 208 WIRE -128 320 -128 288 WIRE -128 320 -416 320 WIRE 64 320 64 272 WIRE 64 320 -128 320 WIRE 256 320 256 176 WIRE 256 320 64 320 WIRE 576 320 576 304 WIRE 576 320 256 320 WIRE 864 320 864 96 WIRE 960 320 960 288 WIRE 960 320 864 320 WIRE 64 384 64 320 WIRE 960 400 960 320 FLAG 64 384 0 FLAG 960 0 arduino FLAG 144 -160 Lowsidepower FLAG 960 400 0 FLAG -416 80 zwk 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 -112 R0 SYMATTR InstName R1 SYMATTR Value 680K SYMBOL Misc\\EuropeanResistor -144 192 R0 SYMATTR InstName R2 SYMATTR Value 11K SYMBOL Misc\\EuropeanResistor 48 -96 R0 SYMATTR InstName R3 SYMATTR Value 4.7K SYMBOL TL431 256 144 M0 SYMATTR InstName U1 SYMBOL Optos\\PC817C 736 48 R0 SYMATTR InstName U2 SYMBOL Misc\\EuropeanResistor 368 16 R0 SYMATTR InstName R4 SYMATTR Value 4.7K SYMBOL Misc\\EuropeanResistor -272 -176 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 27 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 820K SYMBOL Misc\\EuropeanResistor -160 -176 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 27 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 680K SYMBOL voltage -416 112 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value PULSE(0 800 0 1 0 2 4) SYMBOL Misc\\EuropeanResistor 944 32 R0 SYMATTR InstName R7 SYMATTR Value 10K SYMBOL voltage 960 192 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V3 SYMATTR Value 5 SYMBOL Misc\\EuropeanResistor -432 -112 R0 SYMATTR InstName R8 SYMATTR Value 820K SYMBOL diode 368 -144 R0 SYMATTR InstName D1 SYMATTR Value gruen SYMBOL Misc\\EuropeanResistor -144 32 R0 SYMATTR InstName R9 SYMATTR Value 9.1K SYMBOL TL431 576 272 M0 WINDOW 0 34 -22 Left 2 SYMATTR InstName U3 SYMBOL diode 496 208 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 SYMBOL Misc\\EuropeanResistor 240 0 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 27 56 VTop 2 SYMATTR InstName R10 SYMATTR Value 100K TEXT 112 456 Left 2 !.tran 1 TEXT 112 408 Left 2 !.inc TL431_texas.cir TEXT 56 -224 Left 2 !.model gruen D(Ron=100 Roff=1G Vfwd=1.7) TEXT 688 184 Left 2 ;PC123 TEXT 616 -16 Left 2 ;1 TEXT 616 80 Left 2 ;2 TEXT 848 80 Left 2 ;3 TEXT 848 -16 Left 2 ;4 TEXT 840 -48 Left 2 ;HIGH bei >750VDC TEXT 408 -48 Left 2 ;LED TEXT -8 -312 Left 2 ;Zwischenkreisspannungsüberwachung TEXT 480 368 Left 2 ;min=375V; max=750V dazwischen LOW