I checked the install and the current was around 56A with the Power MOS simulation, so it seems ngspice-28 is working well.

However the Op-Amp simulation causes KiCAD to crash. How to get the crashlog on windows?

Here is the simple simulation with only 1 MOS which shows the same error.

See attached schematic and lib:

isolator.zip (8.2 KB)

And the simulation result:

(note that the pins 4 and 5 are left unconnected as they map to Tj and Tcase of the model).

The full simulation log:

```
Circuit: KiCad schematic
Background thread stopped with timeout = 0
Doing analysis at TEMP = 27.000000 and TNOM = 27.000000
Initial Transient Solution
--------------------------
Node Voltage
---- -------
/vac 0
/vgate 0
net-_m1-pad1_ -2.30754e-026
xm1.x1.d -2.30755e-026
xm1.x1.ox -2.30755e-026
xm1.x1.e_edg1_int1 0
xm1.g 2.4641e-039
xm1.x1.ox1 -2.30755e-026
xm1.x1.e_edg2_int1 0
xm1.x1.ox2 -2.30755e-026
xm1.x1.edep 2.17929e-014
xm1.x1.e_eds_int1 -2.17929e-014
xm1.x1.s 1.64274e-030
xm1.x1.g_chan_int1 2.4951e-032
nc_01 -4.784e-039
xm1.x1.d1 -2.30755e-026
xm1.x1.g_rmos_int1 2.49047e-032
xm1.d1 -2.30755e-026
xm1.x1.d3 -2.30787e-026
xm1.x1.g_diode_int1 -2.30751e-027
xm1.x1.d2 -2.30787e-026
xm1.x1.g_rdio_int1 -2.30751e-027
xm1.x1.a 0
xm1.x1.c 0
xm1.x1.b 2.30751e-027
xm1.x1.e_e001_int1 2.30751e-027
xm1.x1.e 4.54559e-023
xm1.x1.e_e002_int1 4.54559e-023
xm1.s 9.27399e-031
xm1.x1.g_th_int1 -5.32497e-053
xm1.g1 0
xm1.s1 -6.31583e-042
xm1.gs_int1 -2.30754e-027
xm1.source_vmeas 0
xm1.d2 -2.30754e-026
xm1.tb -4.784e-039
xm1.g_th_int1 3.81797e-057
nc_02 -4.784e-039
xm1.t1 -4.784e-039
xm1.t2 -4.784e-039
xm1.t3 -4.784e-039
xm1.t4 -4.784e-039
b.xm1.bg_th#branch 0
v.xm1.v_ls#branch -2.30754e-027
b.xm1.bgs#branch 0
b.xm1.x1.bg_th#branch 0
v.xm1.x1.v_sense2#branch 2.30751e-027
v.xm1.x1.v_sense#branch 2.30754e-027
e.xm1.x1.e_edg1#branch 3.46736e-040
e.xm1.x1.e_edg2#branch 0
v.xm1.x1.vx#branch 0
e.xm1.x1.e_eds#branch 0
b.xm1.x1.be_e002#branch 0
b.xm1.x1.be_e001#branch 0
b.xm1.x1.bg_rdio#branch 0
b.xm1.x1.bg_diode#branch 0
b.xm1.x1.bg_rmos#branch 0
b.xm1.x1.bg_chan#branch 0
b.xm1.x1.be_eds#branch 0
v.xm1.x1.v_sense3#branch 4.54559e-023
b.xm1.x1.be_edg2#branch 0
b.xm1.x1.be_edg1#branch 0
l.xm1.ld#branch 2.30754e-027
l.xm1.ls#branch -2.30754e-027
l.xm1.lg#branch -1.64274e-039
l.xm1.x1.l_l001#branch 6.92254e-035
e.xm1.x1.e_e002#branch -4.54559e-023
e.xm1.x1.e_e001#branch -6.92254e-035
v2#branch 1.64274e-039
v1#branch -2.30754e-027
Reference value : 0.00000e+000
doAnalyses: TRAN: Timestep too small; time = 5.02514e-005, timestep = 1.25e-018: trouble with node "net-_m1-pad1_"
run simulation(s) aborted
```