04-11-2010 06:14 AM
Hello,
I try to simulate the Mosfet IPW60R045CP using the following spice model:
.SUBCKT IPW60R045CP_L0 drain gate source
Lg gate g1 8n
Ld drain d1 3n
Ls source s1 8n
Rs s1 s2 1.5m
Rg g1 g2 1.3
M1 d2 g2 s2 s2 DMOS L=1u W=1u
.MODEL DMOS NMOS ( KP= 112.533 VTO=3.85 THETA=0 VMAX=1.5e5 ETA=0 LEVEL=3)
Rd d2 d1a 0.034 TC=13m
.MODEL MVDR NMOS (KP=272.45 VTO=-1 LAMBDA=0.15)
Mr d1 d2a d1a d1a MVDR W=1u L=1u
Rx d2a d1a 1m
Cds1 s2 d2 195.5p
Dbd s2 d2 Dbt
.MODEL Dbt D(BV=600 M=0.85 CJO=88.84n VJ=0.5V)
Dbody s2 21 DBODY
.MODEL DBODY D(IS=42.1p N=1.08 RS=2u EG=1.12 TT=750n)
Rdiode d1 21 1.69m TC=6m
.MODEL sw NMOS(VTO=0 KP=10 LEVEL=1)
Maux g2 c a a sw
Maux2 b d g2 g2 sw
Eaux c a d2 g2 1
Eaux2 d g2 d2 g2 -1
Cox b d2 5.51n
.MODEL DGD D(M=1 CJO=5.51n VJ=0.5)
Rpar b d2 1Meg
Dgd a d2 DGD
Rpar2 d2 a 10Meg
Cgs g2 s2 6.81n
.ENDS IPW60R045CP_L0
It doesn't work (no error message, but no current flow either).
Is there a way to make this model work?
(I am using Multisim 11.0)
Uwe Fechner
Solved! Go to Solution.
04-11-2010 11:34 AM
Hello,
I discovered, that the model works ok, but source and gate are swaped. How can I change this?
Best regards:
Uwe Fechner
04-12-2010 07:55 AM
Hi Uwe,
I guess the problem is something because of the order of the Spice model nodes you assigned in the Component Wizard in step 4 of 8, when you build you userdefined component.
In your spice model it is written:
Lg gate g1 8n
Ld drain d1 3n
Ls
source s1 8n
So you have to change the default pin parameters ( S/D/G) in step 4. Put a G for Gate to the first postion and a S for Source to the third (last) position in the table. Then it should work correctly.
Regards
TomBaum
04-12-2010 12:24 PM
Hello,
your suggestion doesn't work.
Now I have a transistor, where Drain and Gate are swapped.
Is there anyway to swap the assignment AFTER the creation of a part?
I am trying to solve this issue now for half a year, and I am not successfull.
Best regards:
Uwe Fechner
04-12-2010 01:02 PM
Hello,
I succeded in the end.
I had to edit the graphic symbol of the transistor with the symbol editor.
Gate and Source were swapped there.
Best regards:
Uwe Fechner