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Subhash1
Level 1
Level 1
5 replies posted 10 sign-ins 5 sign-ins

Dear Team,

I am doing the simulation of parallel mosfets in LTSpice. I use the MOSFET- IMZA120R014M1H_L3 in my simulation which I created  from the .lib file. There is some error of floating nodes in LTSPice and I cannot simulation without solving those errors. And I also simulated circuit with other model of your brand as well as different brand MOSFET model and They are working perfectly. Please resolve the my query.

I am also attached screenshot of error and Model.

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Santhoshkumar
Moderator
Moderator
Moderator
50 solutions authored 250 sign-ins 25 solutions authored

Dear @Subhash1 
Greetings from Infineon
Good day!!

As we have discussed offline,
The model(L3 type) is having a compatibility issues with LT-spice, can you please consider performing  the simulation using the simetrix software for better results.
You can do most of the measurements and simulations in the simetrix in the same way as the LT-spice. 
It is a licensed software. However there is a trail version with certain limitations one such is restricting up to 140 analog nodes (internal and external )
please refer the below link for more details
https://www.simetrix.co.uk/downloads/download-elements.html

Kindly let me know if you have any further queries.

Best regards,
Santhosh Kumar

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Santhoshkumar
Moderator
Moderator
Moderator
50 solutions authored 250 sign-ins 25 solutions authored

Dear @Subhash1 
Greetings from Infineon
Good day!!

We are working on your question, please wait for some time.

Thanks & Best regards!
Santhosh Kumar

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Santhoshkumar
Moderator
Moderator
Moderator
50 solutions authored 250 sign-ins 25 solutions authored

Dear @Subhash1 
Greetings from Infineon
Good day!!

As,  per the error shown, the model of switch doesn't have any problem. The problem I could see is the connection issue which is making it floating. Please check your current source connection nodes. Secondly, check with the increasing time step. Sometimes because of it, it gives error of floating nodes.
Please try to simulate after these changes and Kindly let me know if the error is still  persisting.

Thanks and Best regards,
Santhosh Kumar

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Dear Santhosh,

I have simulated my circuit with different brands' MOSFET model as well as another Infineon  model and it's working properly.

 

Thanks and Regards,

Subhash

 

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Santhoshkumar
Moderator
Moderator
Moderator
50 solutions authored 250 sign-ins 25 solutions authored

Dear Subhash,
Hope you are having a good day!

Can you please share your schematic file?
We will simulate from our end, that will help us to provide better solution to your problem. 

Thanks & Best regards!
Santhosh Kumar

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Subhash1
Level 1
Level 1
5 replies posted 10 sign-ins 5 sign-ins

Dear Santhosh,

Please find the attached schematic file here.

Regards,

Subhash

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Santhoshkumar
Moderator
Moderator
Moderator
50 solutions authored 250 sign-ins 25 solutions authored

Dear @Subhash1 
Greetings from Infineon
Good day!!

As we have discussed offline,
The model(L3 type) is having a compatibility issues with LT-spice, can you please consider performing  the simulation using the simetrix software for better results.
You can do most of the measurements and simulations in the simetrix in the same way as the LT-spice. 
It is a licensed software. However there is a trail version with certain limitations one such is restricting up to 140 analog nodes (internal and external )
please refer the below link for more details
https://www.simetrix.co.uk/downloads/download-elements.html

Kindly let me know if you have any further queries.

Best regards,
Santhosh Kumar

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Subhash1
Level 1
Level 1
5 replies posted 10 sign-ins 5 sign-ins

ok, you can close the case. If i have an issue, I will create new case.

Regards,

Subhash

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