Multisim users: anyone got lateral mosfet models working?

jez · 26th April 2011, 02:44 PM

I can't seem to get imported lateral mosfet (or anything imported for that matter!) to work in Multisim.... Help files and on line guides have been no help.
I can get new models to appear to be ok in as much as the symbol appears on the schematic, the pins are apparently connected correctly and the SPICE model looks ok and is where it should be.. BUT the component(s) don't function

They just sit there and draw no current no matter how they are biased!
Has anyone here managed to successfully import these models ????
If so could you explain it to me!!??

wahab · 26th April 2011, 03:22 PM

Quote:

Originally Posted by jez

I can't seem to get imported lateral mosfet (or anything imported for that matter!) to work in Multisim.... Help files and on line guides have been no help.
I can get new models to appear to be ok in as much as the symbol appears on the schematic, the pins are apparently connected correctly and the SPICE model looks ok and is where it should be.. BUT the component(s) don't function

They just sit there and draw no current no matter how they are biased!
Has anyone here managed to successfully import these models ????
If so could you explain it to me!!??

http://my.ece.ucsb.edu/bobsclass/2C/...20Multisim.pdf

lineup · 03:31 PM

You dont say what laterals.
There are models for Exicon Laterals in a ZIP-file:
Lateral MOSFET replacements for 2SK1058 (Hitachi)

I have working models spice for 2SK1058 and 2SJ162.
Do you use the Component Wizard?
There we can paste a model and save the component in User database.

I think my models are:
(p)spice models 4 2sk1058 & 2sj162

jez · 26th April 2011, 03:35 PM

"There we can paste a model and save the component in User database."

HOW? that's the bit I can't get to work! I have all the models I need. That is not the problem.
Wahab. I will check out the resource you gave. Thanks.

lineup · 26th April 2011, 03:44 PM

Remember to change drain, source and gate in Component Wizard.
The numbers should be:
3
1
2

jez · 27th April 2011, 12:51 PM

I seem to be getting somewhere with the link from Wahab. Thanks.
Can anyone make sense of this link Importing a MOSFET Model into Multisim - National Instruments

The bit I don't get is how to get the model into Multisim.... I've tried a variety of ideas but nothing has worked so far

jez · 28th April 2011, 03:39 PM

Aha! Success

The problem was a mixture of slight syntax error in model plus I needed to rename pins as Lineup suggested.... only when both were done did success prevail.
Thanks for the help

26th April 2011, 02:44 PM	#1
jez diyAudio Member Join Date: Jan 2004 Location: n.e england	Multisim users: anyone got lateral mosfet models working? I can't seem to get imported lateral mosfet (or anything imported for that matter!) to work in Multisim.... Help files and on line guides have been no help. I can get new models to appear to be ok in as much as the symbol appears on the schematic, the pins are apparently connected correctly and the SPICE model looks ok and is where it should be.. BUT the component(s) don't function They just sit there and draw no current no matter how they are biased! Has anyone here managed to successfully import these models ???? If so could you explain it to me!!?? __________________ Repairs and mods to Real Hi-Fi, guitar amps and P.A. in North East England. http://www.arklesselectronics.com

26th April 2011, 03:27 PM	#3
lineup diyAudio Member Join Date: Dec 2005 Location: the north	You dont say what laterals. There are models for Exicon Laterals in a ZIP-file: Lateral MOSFET replacements for 2SK1058 (Hitachi) I have working models spice for 2SK1058 and 2SJ162. Do you use the Component Wizard? There we can paste a model and save the component in User database. I think my models are: (p)spice models 4 2sk1058 & 2sj162 __________________ lineup Last edited by lineup; 26th April 2011 at 03:31 PM.

26th April 2011, 03:35 PM	#4
jez diyAudio Member Join Date: Jan 2004 Location: n.e england	"There we can paste a model and save the component in User database." HOW? that's the bit I can't get to work! I have all the models I need. That is not the problem. Wahab. I will check out the resource you gave. Thanks. __________________ Repairs and mods to Real Hi-Fi, guitar amps and P.A. in North East England. http://www.arklesselectronics.com

26th April 2011, 03:44 PM	#5
lineup diyAudio Member Join Date: Dec 2005 Location: the north	Remember to change drain, source and gate in Component Wizard. The numbers should be: 3 1 2 __________________ lineup

27th April 2011, 12:51 PM	#6
jez diyAudio Member Join Date: Jan 2004 Location: n.e england	I seem to be getting somewhere with the link from Wahab. Thanks. Can anyone make sense of this link Importing a MOSFET Model into Multisim - National Instruments The bit I don't get is how to get the model into Multisim.... I've tried a variety of ideas but nothing has worked so far __________________ Repairs and mods to Real Hi-Fi, guitar amps and P.A. in North East England. http://www.arklesselectronics.com


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28th April 2011, 03:39 PM	#7
jez diyAudio Member Join Date: Jan 2004 Location: n.e england	Aha! Success The problem was a mixture of slight syntax error in model plus I needed to rename pins as Lineup suggested.... only when both were done did success prevail. Thanks for the help __________________ Repairs and mods to Real Hi-Fi, guitar amps and P.A. in North East England. http://www.arklesselectronics.com

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