* D:\Documents\Sims\LTSpice\2026\10 - Oct\06\1diode2g2+gdt_cg.asc
* Generated by LTspice 24.1.9 for Windows.
L1 n010 n015 10 Rser=0.3125
R1 n010 N011 1
R2 n015 N011 1
R5 n015 CG 1
C2 N011 n013 100f Rser={ESR}
C4 n012 N014 100f IC=PC Rser={ESR}
L3 n007 n006 2 Rser=62.5m
R7 n006 n012 1
R8 n007 n013 1
L5 n002 EL_5 2 Rser=2
R11 n002 EL_5 1
D1 N003 N004 D
R3 0 N004 {res}
R4 N003 n002 {res}
S1 Pin1 n005 Pin2 MON G
S2 n009 Pin1 MON Pin2 G
R6 Pin1 MON 1e8
C1 MON Pin2 {Tau/100Meg} Rser={ESR}
C3 CG N008 1p Rser={ESR}
R9 N014 CG 1
R10 Pin1 n012 1
R12 Pin2 n013 1
R13 0 N008 1
B2 Pin2 n009 V={Vhold+Rdyn*(I(S2)-Ihold)}
B1 n005 Pin2 V={Vhold+Rdyn*(I(S1)-Ihold)}
R14 Pin2 Pin1 {Rleak}
R15 MON 0 1
.model D D
.lib C:\Users\vinya\AppData\Local\LTspice\lib\cmp\standard.dio
.param PC=3u
.tran 0 300k 0 20m
K2 L3 L5 .99
.options reltol = 0.04
* Disconnect the\nneon bulb to\nturn this\ncircuit OFF.
* 'MON' is an internal node\nwithin the neon bulb. It\ndiscloses to us that the\ninternal dynamics is al-\nlowed to 'float' its vol-\ntage without limitation.
.param res = 3
.param Vstrike=100 Vhold=50 Zon=2K Ihold=200u Tau=100u Rdyn=Zon Rleak=1e7
.model G SW(Ron=1e-50 Roff=1e12 Vt={.5*(Vstrike+Vhold)} Vh={.5*(Vstrike-Vhold)} Vser=0)
.param esr = 3
* GEAR APPROXIMATION METHOD
* 19m <= max time step >= 20m\n          comatose vs surge
* This model of a neon bulb uses a dynamic resistance which\nis predicated upon using the original resistance of: Zon=2k.
.save V(MON), V(n012), V(n013), V(n005), V(n009)
.save V(n010), V(n015), I(L1)
.save V(n007), V(n006)
.save I(L5)
.save V(n002), V(el_5)
.save I(L3)
.save I(R15)
.backanno
.end
