Version 4
SHEET 1 1644 680
WIRE 48 -144 -16 -144
WIRE -16 -112 -16 -144
WIRE 48 -112 48 -144
WIRE -16 -16 -16 -32
WIRE -112 32 -144 32
WIRE 112 32 -112 32
WIRE 240 48 176 48
WIRE 288 48 240 48
WIRE -112 64 -112 32
WIRE 48 64 48 -32
WIRE 112 64 48 64
WIRE 48 144 48 64
WIRE 112 144 48 144
WIRE 240 144 240 48
WIRE 240 144 192 144
WIRE -112 160 -112 144
WIRE 48 192 48 144
WIRE 48 304 48 272
FLAG -112 160 0
FLAG -16 -16 0
FLAG 48 304 0
FLAG 288 48 OUT
FLAG -144 32 IN
SYMBOL Opamps\\opamp 144 112 M180
SYMATTR InstName U1
SYMBOL voltage -112 48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 ""
SYMATTR SpiceLine ""
SYMATTR InstName V1
SYMATTR Value 0.45
SYMBOL res 32 -128 R0
SYMATTR InstName R1
SYMATTR Value 6.7226891k
SYMATTR SpiceLine ""
SYMBOL res 32 176 R0
SYMATTR InstName R2
SYMATTR Value 0.6149116k
SYMATTR SpiceLine ""
SYMBOL res 208 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMATTR SpiceLine ""
SYMBOL voltage -16 -128 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 ""
SYMATTR SpiceLine ""
SYMATTR InstName V2
SYMATTR Value 5
TEXT -104 432 Left 2 !.lib opamp.sub
TEXT 208 -128 Left 2 ;0.45 V -> 1V\n0.61V -> 4V
TEXT -104 368 Left 2 !.op
TEXT -104 400 Left 2 !.dc V1 0.45 0.61 0.01
TEXT -152 488 Left 2 ;Ua -U1 = x*(U1-U2) + y*U1\nZwei Gleichungen mit obiger Formel aufstellen. \nDazu Ue1,Ua1 und Ue2,Ua2 einsetzen. -> x, y ausrechnen\n \nR1=R3/x\nR2=R3/y