Version 4
SHEET 1 1044 680
WIRE -112 -80 -112 -176
WIRE -112 32 -112 0
WIRE -160 -64 -160 -112
WIRE -160 -112 -240 -112
WIRE -304 -112 -304 -80
WIRE -304 0 -304 32
WIRE -160 -16 -160 32
WIRE -240 32 -240 -16
WIRE -240 -80 -240 -112
WIRE -240 -112 -304 -112
WIRE -352 -16 -352 32
WIRE -352 32 -432 32
WIRE -352 -112 -432 -112
WIRE -352 -112 -352 -64
WIRE -432 -112 -464 -112
WIRE -432 32 -496 32
WIRE -432 32 -432 0
WIRE -432 -80 -432 -112
WIRE -768 48 -768 32
WIRE -768 -80 -768 -112
WIRE -768 32 -768 0
WIRE -736 -112 -768 -112
WIRE 0 -80 0 -112
WIRE 0 -112 16 -112
WIRE 224 -112 224 -64
WIRE 224 -16 224 32
WIRE 272 32 272 0
WIRE 144 32 144 -16
WIRE 144 -80 144 -112
WIRE 144 -112 224 -112
WIRE 432 -176 432 -80
WIRE 432 0 432 32
WIRE 432 -176 352 -176
WIRE -112 -176 -96 -176
WIRE -16 -176 144 -176
WIRE 272 -80 272 -176
WIRE 512 -176 512 -80
WIRE -704 -112 -736 -112
WIRE 0 32 0 0
WIRE 224 -176 272 -176
WIRE 272 -176 352 -176
WIRE 512 0 512 32
WIRE 112 -112 128 -112
WIRE -496 -80 -496 -112
WIRE -496 -112 -624 -112
WIRE -496 0 -496 32
WIRE -496 32 -768 32
WIRE 16 -112 32 -112
WIRE 128 -112 144 -112
WIRE 480 -176 512 -176
WIRE 352 -176 352 -80
WIRE 352 -16 352 32
WIRE -112 -176 -160 -176
WIRE -464 -112 -496 -112
WIRE 432 -176 480 -176
FLAG -464 -112 2
FLAG -768 48 0
FLAG -736 -112 1
FLAG -304 32 0
FLAG -240 32 0
FLAG -160 32 0
FLAG -112 32 0
FLAG 224 32 0
FLAG 144 32 0
FLAG 272 32 0
FLAG 432 32 0
FLAG 512 32 0
FLAG 0 32 0
FLAG 16 -112 3
FLAG 128 -112 4
FLAG 480 -176 5
FLAG 352 32 0
FLAG -160 -176 flux
IOPIN -160 -176 Out
SYMBOL g -304 -96 R0
WINDOW 0 16 16 Left 0
WINDOW 3 16 96 Left 0
SYMATTR InstName G1
SYMATTR Value 1
SYMBOL cap -256 -80 R0
WINDOW 0 32 0 Left 0
WINDOW 3 32 64 Left 0
WINDOW 39 32 28 Left 0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL e -112 -96 R0
WINDOW 0 16 16 Left 0
WINDOW 3 16 96 Left 0
SYMATTR InstName E1
SYMATTR Value 1
SYMBOL voltage -112 -176 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 -32 56 Invisible 0
SYMATTR InstName V1
SYMATTR Value 0
SYMBOL f -432 -80 R0
WINDOW 0 16 0 Left 0
WINDOW 3 40 41 Left 0
WINDOW 123 16 80 Left 0
SYMATTR InstName F1
SYMATTR Value V1
SYMATTR Value2 1
SYMBOL voltage -768 -96 R0
WINDOW 123 0 0 Left 0
WINDOW 39 48 72 Left 0
WINDOW 3 -48 176 Left 0
WINDOW 0 -42 57 Right 0
SYMATTR Value SINE(0 1 {f} 0 {-f/3} 90)
SYMATTR InstName Vs
SYMBOL g 272 -96 R0
WINDOW 0 16 16 Left 0
WINDOW 3 16 96 Left 0
SYMATTR InstName G2
SYMATTR Value 50m
SYMBOL cap 128 -80 R0
WINDOW 0 32 0 Left 0
WINDOW 3 32 64 Left 0
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL h 0 -96 M0
WINDOW 0 16 16 Left 0
WINDOW 3 40 56 Left 0
WINDOW 123 16 96 Left 0
SYMATTR InstName H1
SYMATTR Value V1
SYMATTR Value2 1k
SYMBOL res 416 -96 R0
WINDOW 0 32 16 Left 0
WINDOW 3 32 96 Left 0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL ind -480 -96 M0
WINDOW 0 48 40 Left 0
WINDOW 3 48 72 Left 0
SYMATTR InstName L1
SYMATTR Value {100u*n}
SYMBOL res -720 -96 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R1
SYMATTR Value 50
SYMBOL res 240 -192 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 1
SYMBOL Misc\\xvaristor 496 -96 R0
WINDOW 0 48 16 Left 0
WINDOW 3 48 48 Left 0
WINDOW 39 48 72 Left 0
WINDOW 40 48 96 Left 0
SYMATTR InstName X2
SYMATTR Value Rnd
SYMATTR SpiceLine v=3k
SYMATTR SpiceLine2 r=0
SYMBOL Misc\\xvaristor 128 -128 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
WINDOW 39 56 56 VTop 0
WINDOW 40 80 56 VTop 0
SYMATTR InstName X1
SYMATTR Value Rnd
SYMATTR SpiceLine v=100
SYMATTR SpiceLine2 r=3k
SYMBOL cap 336 -80 R0
WINDOW 0 32 0 Left 0
WINDOW 3 32 64 Left 0
SYMATTR InstName C3
SYMATTR Value 5n
TEXT -816 200 Left 0 !.step param n list .1 1 1k
TEXT -312 88 Left 0 !.subckt Rnd 1 2  v=1 r=0\n.param n=v/.83-1\nE1 1 3 3 2 {max(n,0)}\nD1 2 3 rn\nD2 3 2 rn\n.model rn d(Is=1p Rs={r/n}) \n.ends Rnd
TEXT 128 88 Left 0 !.subckt Sqr 1 2  v=1 r=0\nD1 1 2 sq\n.model sq d(Vfwd={v} Vrev={v} Rs={r}) \n.ends Sqr
TEXT -816 232 Left 0 !.tran 0 {15/f} {1m/f} {1m/f} uic
TEXT -816 168 Left 0 !.param n=1 f=20k
TEXT -504 -176 VLeft 0 ;L1 models an air gap
TEXT -240 -232 VLeft 0 ;G1, C1, E1 models volt-sec\n applied to inductor
TEXT -424 -176 VLeft 0 ;F1, V1 reflects current resulting\n from applied volt-seconds
TEXT 520 -224 VLeft 0 ;X2 models saturation effects
TEXT -664 -176 VLeft 0 ;R1 models winding resistance
TEXT 432 -224 VLeft 0 ;R3 models low level\n linear inductance
TEXT 168 -240 VLeft 0 ;R2 models incremental\n saturation inductance
TEXT 48 -232 VLeft 0 ;H1, X1, C2, G2 models hysteresis\n effects (dc + ac widening)
TEXT 352 -224 VLeft 0 ;C3 models linear core loss
TEXT -80 -256 VLeft 0 ;V1 senses current drawn by\n applied volt-seconds
TEXT -112 -656 Bottom 0 ;Non Linear Inductor Model (Preliminary) by analog@ieee.org - 04/04\nfor B - H style curves plot V(flux) and change x-axis from time to I(R1)
TEXT 128 224 Left 0 ;Note: for abrupt limiting effects\nsubstitute "Sqr" subcircuit model
LINE Normal -56 -64 -56 -136 2
LINE Normal -272 -144 -368 -96 2
LINE Normal -144 -144 -272 -144 2
LINE Normal -384 -64 -368 -96 2
LINE Normal -96 -160 -144 -144 2