Version 4 SHEET 1 928 680 WIRE 384 112 368 112 WIRE 496 112 464 112 WIRE 560 112 496 112 WIRE 48 128 48 96 WIRE 496 144 496 112 WIRE 48 240 48 208 WIRE 496 240 496 208 FLAG 48 240 0 FLAG 48 96 Signal FLAG 496 240 0 FLAG 368 112 Signal FLAG 560 112 Out SYMBOL voltage 48 112 R0 WINDOW 3 24 108 Left 2 WINDOW 123 40 73 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value PULSE(0 1 0 1n 1n 1 10) SYMATTR Value2 AC 1 SYMATTR InstName V1 SYMBOL res 480 96 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 1k SYMBOL cap 480 144 R0 SYMATTR InstName C1 SYMATTR Value 1µ TEXT 32 304 Left 2 ;.tran 0 10m 0 1u TEXT 32 344 Left 2 ;.options plotwinsize=0 TEXT 32 392 Left 2 !.ac dec 100 10 10k TEXT 32 -184 Left 2 ;fg=1/(2*pi*R*C)\nfg=159Hz\n \ntau = R*C\nU(t)=U0*(1-e^(t/tau))\n63% bei t=tau