Hi I am trying to use the eDesignSuite to design a SMPS circuit using viper16LN. I am unable to modify the given designs for my needs.

[Zheng Cong Koh]

Posted on February 15, 2017 at 16:56

Is it possible to provide me with the PSPICE model of the viper16LN chip? Thank you

#viper16ln

[Patrizia BELLITTO]

Posted on February 15, 2017 at 17:02

Hello, 

you can find the Pspice model in the 

http://www.st.com/content/st_com/en/products/power-management/ac-dc-converters/high-voltage-converters/viperplus/viper16.html

.

[Zheng Cong Koh]

Posted on February 16, 2017 at 16:31

Hi I already included VIPer16L and VIPer16H Pspice into ORCAD but when I tried to simulate it with my circuit design it gave me an error: ERROR(ORPSIM-15108): Subcircuit VIPER16L used by X_U1 is undefined. Any ideas on how I could resolve this error? Thanks 

[Nickname6829_O]

Posted on February 16, 2017 at 16:54

Hi,

from the error it seems that the file 'VIPERlib' is not correctly linked in your simulation profile. Please follow the 'model usage instructions' included in the package published in

/external-link.jspa?url=http%3A%2F%2Fwww.st.com%2Fcontent%2Fst_com%2Fen%2Fproducts%2Fpower-management%2Fac-dc-converters%2Fhigh-voltage-converters%2Fviperplus%2Fviperhtml

. If you still experience the problem, I need to have your OrCAD project to figure out what is going wrong.

Hope this helps.

Best Regards,

Carmelo Vicari