Version 4
SHEET 1 880 768
WIRE -96 -16 -240 -16
WIRE -64 -16 -96 -16
WIRE 48 -16 16 -16
WIRE -240 16 -240 -16
WIRE -32 96 -32 80
WIRE -240 112 -240 80
WIRE -96 112 -96 -16
WIRE -64 112 -96 112
WIRE 48 128 48 -16
WIRE 48 128 0 128
WIRE 80 128 48 128
WIRE -64 144 -96 144
WIRE -32 176 -32 160
WIRE -96 224 -96 144
WIRE -208 272 -240 272
WIRE -96 272 -96 224
WIRE -96 272 -128 272
WIRE -64 272 -96 272
WIRE 48 272 48 128
WIRE 48 272 16 272
WIRE -240 304 -240 272
WIRE -96 448 -96 416
WIRE 48 448 48 416
WIRE -96 560 -96 528
WIRE 48 560 48 528
FLAG -240 112 0
FLAG -32 80 +V
FLAG -32 176 -V
FLAG -240 304 0
FLAG 80 128 Ua
FLAG -240 -16 Uc
FLAG 48 560 0
FLAG -96 560 0
FLAG -96 416 +V
FLAG 48 416 -V
FLAG -96 224 Up
SYMBOL Opamps\\UniversalOpamp2 -32 128 R0
SYMATTR InstName U1
SYMATTR Value2 Avol=1Meg GBW=100Meg Slew=100Meg
SYMATTR SpiceLine ilimit=2500m rail=0 Vos=0 phimargin=45
SYMATTR SpiceLine2 en=0 enk=0 in=0 ink=0 Rin=5000Meg
SYMBOL Misc\\EuropeanResistor -80 0 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL Misc\\EuropeanResistor -80 288 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor -224 288 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL cap -256 16 R0
SYMATTR InstName C1
SYMATTR Value 0.02µ
SYMBOL voltage -96 432 R0
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL voltage 48 432 R0
SYMATTR InstName V2
SYMATTR Value -9
TEXT -312 -224 Left 2 !.tran 0 150u 0 10n
TEXT -312 -152 Left 2 !.ic V(uc)=100m
TEXT -312 -192 Left 2 !.options plotwinsize=0
TEXT -120 128 Left 2 ;Ud
TEXT -312 -120 Left 2 !.meas Tp time trig V(ua)=1 rise=2 targ V(Ua)=1 rise=3
TEXT -320 -272 Left 4 ;Tperiode = 2*R*C*1.0986
LINE Normal -128 96 -128 160 2
LINE Normal -144 112 -128 96 2
LINE Normal -128 96 -144 112 2
LINE Normal -112 112 -128 96 2