Version 4
SHEET 1 1408 680
WIRE 944 -48 752 -48
WIRE 944 -16 944 -48
WIRE 64 80 -16 80
WIRE 128 80 64 80
WIRE 752 96 752 -48
WIRE -16 112 -16 80
WIRE 128 112 128 80
WIRE 944 176 944 64
WIRE -16 240 -16 192
WIRE 128 240 128 192
WIRE 128 240 -16 240
WIRE -16 256 -16 240
WIRE 752 256 752 176
WIRE 944 256 944 240
FLAG -16 256 0
FLAG 64 80 C1
FLAG 944 256 0
FLAG 752 256 0
SYMBOL ind 112 96 R0
SYMATTR InstName L1
SYMATTR Value 1m
SYMBOL current -16 192 R180
WINDOW 0 24 80 Left 2
WINDOW 3 24 0 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName I1
SYMATTR Value SINE(0 50 1k)
SYMBOL res 928 -32 R0
SYMATTR InstName R1
SYMATTR Value 10
SYMBOL cap 928 176 R0
SYMATTR InstName C1
SYMATTR Value {-X/(10*ln(0.5))}
SYMBOL voltage 752 80 R0
WINDOW 3 -427 96 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value PULSE(0 10 0 10n 10n 100u 200u)
SYMATTR InstName V1
TEXT -64 280 Left 2 !.tran 1m
TEXT -56 -112 Left 2 !.param X table(I(L1),-50,10,-40,8,-30,6,-20,4,-10,2,,0,0,10,2,20,4,30,6,40,8,50,10)