Dear Team,

I was trying to simulate the below circuit.



The spice models for TLP292 is downloaded from here.


When trying to run the simulation I am getting the below error.



May I know where I went wrong.

Regards
HARI

 

Hi hari,
The TLP model file is encrypted, no go.
E

 

Hi Eric,

That means we won't be able to use that.Please correct me if I am wrong.

May I know what you mean by encrypted files and why they are providing it if we cant use it.

Regards
Hari

 

Because I can't find an "AC" isolator, I use two isolators and connect pin 4 to 4, 3 to 3, 1 to 2 and 2 to 1. (cross wire the LEDs and parallel the transistors)

 

Hi hari,
Often, models are encrypted so that they can only be used on a particular simulator.
E

 

They are providing dedicated models for LTspice. I used that only but not working

 

Hi hari,
Please post a link to the source of the model file.
E

 

Works for me... though I usually use a K814P with back to back diodes, its very similar to the TLP292 but a 1/3rd of the price!

I put my .mod and .asy files in the same folder as the .asc file, and make sure there's a library path to them in preferences.

Place a TLP292 on a new sheet.
Right click on the symbol to show attributes, then click on the "open symbol" button at the top to bring up symbol file editor.
Right click -> Attributes -> Edit attributes
Double click on model file entry and type TLP292.mod, then OK out. Close & save file.
Shut down LTSpice then reopen.
Open a new sheet and build your circuit...

 

Hi Irving
I also have followed the same steps as per your post, but get this error.

E

 

Where did you put the include?
What version of LTSpice?

 

Dear Team,

I was trying to simulate the below circuit.

View attachment 323482

The spice models for TLP292 is downloaded from here.
View attachment 323483

When trying to run the simulation I am getting the below error.

View attachment 323484

May I know where I went wrong.

Regards
HARI

The file format is wrong. It should be UTF-8.
Delete the .include directive, then re-add it to the schematic.

 

Hi hari,
Please post a link to the source of the model file.
E

Hi Eric source link is already there in my question

 

Works for me... though I usually use a K814P with back to back diodes, its very similar to the TLP292 but a 1/3rd of the price!

I put my .mod and .asy files in the same folder as the .asc file, and make sure there's a library path to them in preferences.

Place a TLP292 on a new sheet.
Right click on the symbol to show attributes, then click on the "open symbol" button at the top to bring up symbol file editor.
Right click -> Attributes -> Edit attributes
Double click on model file entry and type TLP292.mod, then OK out. Close & save file.
Shut down LTSpice then reopen.
Open a new sheet and build your circuit...

View attachment 323491

I did all the steps suggested by you.
Now it is working for me.
Thank you very much.

 

I did all the steps suggested by you.
Now it is working for me.
Thank you very much.

You're welcome.

I don't know why, but putting the library file in a .LIB statement on the schematic never seems to work with encrypted files. I have a whole load of OnSemi & Infineon product data like this and its the only way it seems to work correctly tor me. Other people claim otherwise.