EXICON 10P20/10N20 PSpice Model

[PSchut]

Hi all,

I am looking for a PSpice model of the Exicon 10N20 and 10P20.
I have the Subcircuit of these files, but I am not very expierienced in making a reliable model for PSpice.


This is what I have received from Exicon:
============================================
.SUBCKT ECX10P20 1 2 3
**********************************************
* Model Generated by PEDC *
*Copyright(c) Power Electronics Design Centre*
* All Rights Reserved *
* Power Electronics Design Centre *
* Dept of Elec & Electronic Engineering *
* University of Wales Swansea *
* Singleton Park *
* Swansea SA2 8PP *
* Tel : +44 (0)1792 295420 *
* Fax : +44 (0)1792 295686 *
* E-mail : pedc@swansea.ac.uk *
**********************************************
* Model generated on Dec 6 1999
* MODEL FORMAT: SPICE Level 1
* External Node Designations
* Node 1 -> Drain
* Node 2 -> Gate
* Node 3 -> Source
*
*
*
* O [1]
* |
* Z
* Z Rd
* Z
* D2 |
* Cdg0 | /|| [9]
* |-||--|< |O---O-----|
* | [4]| \|| | |
* [2] Rg | ||---| Z ---
* 0--/\/\/\/\-O----|| M1 Z \ /D1
* |[7] ||---| Z ---
* | | Z |
* | Cgs0 | |RDS |
* |-----||--O---O-----|
* | [8]
* |
* O
* |
* Z
* Z Rs
* Z
* |
* O [3]
M1 9 7 8 8 MM L=1 W=1
* Default values used in MM:
* The capacitances are added externally
* Other default values are:
* RS=0 RD=0 LD=0 CBD=0 CBS=0 CGBO=0
.MODEL MM PMOS LEVEL=1 IS=1e-32
+VTO=-0.426 LAMBDA=0.073 KP=0.673
RS 8 3 0.342
D1 9 8 MD
.MODEL MD D IS=1.0e-32 N=50 BV=250
+CJO=1.45e-9 VJ=0.446 M=0.377
RDS 8 9 1e+06
RD 9 1 0.523
RG 2 7 45.2
* Gate Source capacitance Cgs0
CAP1 7 8 696e-12
*************************
* Gate Drain capacitance Cdg0
CAP 7 4 15.2e-12
*************************
* Gate Drain Capacitance Cdgj0
* Modelled as a diode
D2 9 4 MDD
.MODEL MDD D IS=1e-32 N=50
+CJO=27.6e-12 VJ=0.817 M=0.871
*************************
.ENDS ECX10P20
==================================
.SUBCKT ECX10N20 1 2 3
**********************************************
* Model Generated by PEDC *
*Copyright(c) Power Electronics Design Centre*
* All Rights Reserved *
* Power Electronics Design Centre *
* Dept of Elec & Electronic Engineering *
* University of Wales Swansea *
* Singleton Park *
* Swansea SA2 8PP *
* Tel : +44 (0)1792 295420 *
* Fax : +44 (0)1792 295686 *
* E-mail : pedc@swansea.ac.uk *
**********************************************
* Model generated on Dec 6 1999
* MODEL FORMAT: SPICE Level 1
* External Node Designations
* Node 1 -> Drain
* Node 2 -> Gate
* Node 3 -> Source
*
*
*
* O [1]
* |
* Z
* Z Rd
* Z
* D2 |
* Cdg0 | \|| [9]
* |-||--| >|O---O-----|
* | | /|| | |
* [2] Rg | ||---| Z ---
* 0--/\/\/\/\-O----|| M1 Z / \D1
* |[7] ||---| Z ---
* | | Z |
* | Cgs0 | |RDS |
* |-----||--O---O-----|
* | [8]
* |
* O
* |
* Z
* Z Rs
* Z
* |
* O [3]
M1 9 7 8 8 MM L=1 W=1
* Default values used in MM:
* The capacitances are added externally
* Other default values are:
* RS=0 RD=0 LD=0 CBD=0 CBS=0 CGBO=0
.MODEL MM NMOS LEVEL=1 IS=1e-32
+VTO=0.473 LAMBDA=0.092 KP=1.585
RS 8 3 0.41
D1 8 9 MD
.MODEL MD D IS=1.0e-32 N=50 BV=250
+CJO=1.0e-9 VJ=0.7 M=0.5
RDS 8 9 1e+06
RD 9 1 0.58
RG 2 7 80
* Gate Source capacitance Cgs0
CAP1 7 8 400e-12
*************************
* Gate Drain capacitance Cdg0
CAP 7 4 10.5e-12
*************************
* Gate Drain Capacitance Cdgj0
* Modelled as a diode
D2 4 9 MDD
.MODEL MDD D IS=1e-32 N=50
+CJO=94.8e-12 VJ=0.3 M=1
*************************
.ENDS ECX10N20
============================================

Thanks in advance,
Peter

[Christer]

Well basically the subcircuit is the model. A subcircuit is typically
used instead of an ordinary MOSFET model to be able to model
more parameters of the device. In practice there is very little
difference in how to use models and subcircuits. The subcircuit
has three pins just like a model would. The only practical
difference is usually how to get the subcircuit into you your
component database, but that depends on what version of
spice you are using. While a MOSFET model typically automatically
inherits the standard symbol for MOSFETs, you will usually have
to explicitly specify what symbol to use for the subcircuit.

[PSchut]

So what does that mean for PSpice 9.2.3?
As the subcircuit I tried to import didn't work.

Peter

[hjelm]

I do not know pspice but did you try to import them both at once then i think you need to import as a library.
If not then i do not know.

Did you remove the lines with the equal characters between and after the subcircuits?
This could cause the parser to fail.
Try removing everything that is not related to the circuit and try again.

[Christer]

Yes, I don't know PSpice but hjelm is probably right about
those "========" lines. I didn't react to them when reading
your post, but they are not proper Spice syntax and serve
no purpose. I just checked with the models I received from
Exicon myself and they look like yours (didn't check the details)
but without the "==========" lines. I have posted some of
the other Exicon models before, but not those particular ones
I think. Anyway, here is a zip file with all model Exicon sent me:

[PSchut]

Thanks All,

The syntax is a bit deformed in this thread.
I only used the valid part, and what I have is identical to your file Christer.

So I tried to modify the model of a 2SJ115/2SK405 with these values, but there are a lot more parameters that the EXICON supplied model doesn't have.

A good alternative should be the 2SJ200/201 and 2SK1529/1530 but the pspice library only has the 2SK models (like mentioned in a different thread)

Unlike other remarks I have very good results that match the real world when using spice. Not that you can be guarnteed of good sound, but a lot of parameters can be simultated.

If anybody has a more modern complementairy model of an audio MODFET I would be very pleased.

Thanks again
Peter