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#1 Mar 5, 2021
ojallmanspice
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Last seen: 3 years 3 weeks ago
Joined: 2021-03-05 05:35

SIC MOSFET NETLIST MODEL SIMULATION ERROR

Hi, 
I keep getting error messages for my subcircuit netlist when i try to simulate it in a simple double pulse test circuit:

Netlist:

*SICPOWER1200
.SUBCKT SICPOWER1200 1 2 3
********* ********* ********* ********* ********* ********* ********* ********* ********* *********
.FUNC I1 (VGS,VDIS) {IF(VDIS<(VGS-3.5)/0.54,(1.08*(VGS-3.5)*VDIS-0.941*(VGS-3.5)**0.82),0)}
.FUNC I12 (VGS) {IF(VDIS>=((VGS-3.5)/0.54),(0.27*(VGS-3.5)**2),0)}
.FUNC I2 (VGS,VDIS) {IF(VDIS<(VGS-6.15)/0.54,(2.7*(VGS-6.15)*VDIS-0.941*(VGS-6.15)**0.47),0)}
.FUNC I22 (VGS) {IF (VDIS>=((VGS-6.15)/0.54),(0.405*(VGS-6.15)**2),0)}
.FUNC CGD (VGD) {(1.72*EXP**(-12)) / 0.6617 + 0.9312*SQRT(ABS(12.3-VGD))*(1-TANH(VGD-12.3))}
VDI DI DI1 0
CDS 11 22 55N
COX DI 33 2.6P
CGD DI1 11 VALUE = {CGD (V(2)-V(1))}
GICH1 22 23 VALUE = {I1 (V(2)-V(3),V(DI)-V(1))}
GICH1 23 24 VALUE = {I12 (V(2)-V(3))}
GICH1 24 25 VALUE = {I2 (V(2)-V(3),V(DI)-V(1))}
GICH1 25 DI VALUE = {I22 (V(2)-V(3))}
CGS 33 22 1.6N
RDRIFT DI1 11 257M
.ENDS SICPOWER1200

Error:

**** EXPANSION OF SUBCIRCUIT X_X1 ****
.FUNC I1
------$
ERROR(ORPSIM-16265): Missing or mismatched ()
+ VGS VDIS {IF(VDIS<(VGS-3.5)/0.54,(1.08*(VGS-3.5)*VDIS-0.941*(VGS-3.5)**0.82),
+ 0)}
.FUNC I12
------$
ERROR(ORPSIM-16265): Missing or mismatched ()
+ VGS {IF(VDIS>=((VGS-3.5)/0.54),(0.27*(VGS-3.5)**2),0)}
.FUNC I2
------$
ERROR(ORPSIM-16265): Missing or mismatched ()
+ VGS VDIS {IF(VDIS<(VGS-6.15)/0.54,(2.7*(VGS-6.15)*VDIS-0.941*(VGS-6.15)**0.47),
+ 0)}
.FUNC I22
------$
ERROR(ORPSIM-16265): Missing or mismatched ()
+ VGS {IF (VDIS>=((VGS-6.15)/0.54),(0.405*(VGS-6.15)**2),0)}
.FUNC CGD
------$
ERROR(ORPSIM-16265): Missing or mismatched ()
+ VGD {(1.72*EXP**(-12)) / 0.6617 + 0.9312*SQRT(ABS(12.3-VGD))*(1-TANH(
+ VGD-12.3))}
X_X1.VDI X_X1.DI X_X1.DI1 0
X_X1.CDS X_X1.11 X_X1.22 55N
X_X1.COX X_X1.DI X_X1.33 2.6P
X_X1.CGD X_X1.DI1 X_X1.11 X_X1.VALUE {CGD (V(2)-V(1))}
-------------------------------------$
ERROR(ORPSIM-16318): Missing or invalid expression
X_X1.GICH1 X_X1.22 X_X1.23 VALUE {I1 (V(1#)-V(2#),V(DI)-V(0#))}

ERROR(ORPSIM-15089): Can not re-define X_X1.GICH1. X_X1.GICH1 is either a system defined variable or has already been defined
X_X1.GICH1 X_X1.23 X_X1.24 VALUE {I12 (V(1#)-V(2#))}

ERROR(ORPSIM-15089): Can not re-define X_X1.GICH1. X_X1.GICH1 is either a system defined variable or has already been defined
X_X1.GICH1 X_X1.24 X_X1.25 VALUE {I2 (V(1#)-V(2#),V(DI)-V(0#))}

ERROR(ORPSIM-15089): Can not re-define X_X1.GICH1. X_X1.GICH1 is either a system defined variable or has already been defined

ERROR(ORPSIM-15113): Model VALUE used by X_X1.CGD is undefined

Can anyone advice on how to fix the problem?

Fri, 2021-03-05 09:37
retiredEE
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Last seen: 1 year 3 months ago
Joined: 2018-03-21 12:19

I don't believe there should be a space between the .FUNC name and its parenthesized argument list.

For example, .FUNC ABC (e,f,g) {expression} should be .FUNC ABC(e,f,g) {expression}.

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