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Pspice Advanced : SMOKE. Different smoke limits per Model

Dami

Hi,

 I start with the smoke analysis and I do not manage to create 2 resitances with different properties.

I am used to add Rbreakout resistors and to Edit the Pspice Model in order to give them different DEV (for example 1% and 10%) or TC1.

Now I would like to perform a smoke analysis on my design? is it possible?

The "part" VARIABLES in PSPICE_ELEM library defines all the smoke limits but there are the same for all the resistors....

Thanks

Dam 

 

Parents

  • Thank you oldmouldy!

     Ok I managed to create several (RMAX1, RMAX2,..) and by giving them different "SIZE" (SIZE1, SIZE2,...) it appears as different parts in my Bill of Materials (BOM)!

    Now I'm trying to perform a Monte Carlo.
    I have a SUBCKT with inside this model:
    .MODEL RMODEL RES ( R=1 DEV={0.0005*DEVTOL+10e-6*DTEMP+15e-6*DMONTH} )
    In my design I have declared 3 parameters named DEVTOL, DTEMP, DMONTH.
    And it was working well.

    Now I have add around this SUBCKT resistor from pspice_elem.
    And when I select "Enable PSpice AA support for legacy", it seems that Pspice does not evaluate the { } expression anymore.
    When the 3 parameters are set to 0, I still have a DEV=0.0005.

    Is it a know problem?

    Thanks 

     

Reply

  • Thank you oldmouldy!

     Ok I managed to create several (RMAX1, RMAX2,..) and by giving them different "SIZE" (SIZE1, SIZE2,...) it appears as different parts in my Bill of Materials (BOM)!

    Now I'm trying to perform a Monte Carlo.
    I have a SUBCKT with inside this model:
    .MODEL RMODEL RES ( R=1 DEV={0.0005*DEVTOL+10e-6*DTEMP+15e-6*DMONTH} )
    In my design I have declared 3 parameters named DEVTOL, DTEMP, DMONTH.
    And it was working well.

    Now I have add around this SUBCKT resistor from pspice_elem.
    And when I select "Enable PSpice AA support for legacy", it seems that Pspice does not evaluate the { } expression anymore.
    When the 3 parameters are set to 0, I still have a DEV=0.0005.

    Is it a know problem?

    Thanks 

     

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