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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?
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?
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> 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?