Version 4
SHEET 1 916 680
WIRE -128 240 -144 240
WIRE -112 240 -128 240
WIRE -16 240 -32 240
WIRE 0 240 -16 240
WIRE -144 272 -144 240
WIRE 0 272 0 240
WIRE -144 384 -144 352
WIRE 0 384 0 352
FLAG -144 384 0
FLAG 0 384 0
FLAG -128 240 1
FLAG -16 240 2
SYMBOL voltage -144 256 M0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vs
SYMATTR Value SINE(0 325 {f} 0 0 60)
SYMBOL ind -128 256 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L1
SYMATTR Value {2k8/f/p}
SYMATTR SpiceLine Rser=1
SYMBOL Misc\\xvaristor 16 256 M0
SYMATTR InstName U1
SYMATTR Value F40WW
TEXT -360 136 Left 0 ;.step param p list\n+ 2.5 5 10 20 30 40
TEXT -360 112 Left 0 !.param p=30
TEXT -360 192 Left 0 !.tran 0 {30/f} {28/f} {5m/f} uic
TEXT -360 216 Left 0 !.opt plotwinsize=0
TEXT -120 112 Left 0 !.param f=50
TEXT -120 136 Left 0 ;.step param f list\n+ 50m 50 50k
TEXT 40 112 Left 0 !.subckt F40WW 1 2\n* Fluorescent lamp model - adapted for LTspice by analogspiceman from:\n* "A Dynamic Model for the Electrical Characteristics of Fluorescent Lamps"\n* Mader, U.; Horn, P.; Industry Applications Society Annual Meeting,\n* 1992 IEEE Conference Record 4-9 Oct, 1992 pg.1928-1934 vol.2\n* F40WW model parameters:\n.param a=8120 b=10m c=1.09 d=3G8 e=3 f=4.23 tau=150u\nR1 1 3 R=limit(1,50k, a/(V(p)+b)**c-1 + I(V1)**2*d/(V(p)+e)**f )\nC1 1 3 10p ; stray capacitance also aids convergence\nV1 3 2 0 ; current sense\nBp 0 p I=V(1,2)*I(V1) ; power in arc through tube\nCp 0 p {tau} Rpar=1 ; gas ionization time constant\n.ends F40WW