I draw a transformer simultion with spice. when I chang ratio
from 10:1 to 1:1. I get the model as follow.
.SUBCKT 1TO1 1 2 3 4 VISRC 9 4 DC 0V FCTRL 6 2 VISRC 1E+0 EVCVS 8 9 5 2 1E+0 RPRI 1 7 1E-1 RSEC 8 3 1E-1 LLEAK 7 5 1E-6 LMAGNET 6 5 1E-6 .ENDS 1TO1
when simulation is impletement, the information I got is doAnalyses: Timestep too small run simulation(s) aborted
But when I recover to 10:1, the simulation is runing. .SUBCKT 10TO1 1 2 3 4 VISRC 9 4 DC 0V FCTRL 6 2 VISRC 1E-1 EVCVS 8 9 5 2 1E-1 RPRI 1 7 1E-1 RSEC 8 3 1E-1 LLEAK 7 5 1E-6 LMAGNET 6 5 1E-6 .ENDS 10TO1
When I chnge above model FCTRL 6 2 VISRC 1E+0 EVCVS 8 9 5 2 1E+0 to FCTRL 6 2 VISRC 1E-1 EVCVS 8 9 5 2 1E-1 I got: Warning: premature EOF now, How shall I set up a 1:1 model?