Orcad and Viper06L Model

[jens2399]

Posted on June 01, 2016 at 14:58

Hello,

I've a problem using the Viper06L Spice Model in Orcad 16.6 Lite. If I start the simulation I get the following error:ERROR(ORPSIM-15113): Model DZener used by X_U1.X_VIP06_CTRL_A1.X_X_OLF.D_D5 is undefinedYes I downloaded the newest model from eDesign Studio and I've just updated my Orcad.Any ideas?

[Patrizia BELLITTO]

Posted on June 06, 2016 at 12:14

Hello Jens,

the Orcad model contained in eDesign is not updated to the latest version. It is better if you download the most recent release from the VIPer06 product page, at this link:

http://www.st.com/content/st_com/en/products/power-management/ac-dc-converters/high-voltage-converters/viperplus/viper06.html#design-scroll

We'll remove the old model from eDesign in the next release. Thanks a lot for your reporting. Best regards, Patrizia BellittoeDesignSuite developers team

[jens2399]

Posted on June 07, 2016 at 14:37

Hello Patrizia,

I tried the model you linked but I still get the same error message.

[Patrizia BELLITTO]

Posted on June 07, 2016 at 15:03

Have you downloaded version 2.0? It is a zip containing the model for all the three part numbers (VIPer06X/L/H)

[jens2399]

Posted on June 08, 2016 at 11:29

Hmm. Ok I didn't see this. But now I tried V2.0 and I get a different error:

ERROR(ORPSIM-15113): Model Q40235 used by X_U1.X_VIP06_CTRL_A1.Q_Q2 is undefined

[jens2399]

Posted on June 08, 2016 at 12:42

Actually I'm going crazy with this model. Now I got it working with model for Q40235 from http://robustdesignconcepts.com/files/pspice/pmindex.htm --> bipolar.lib

But the problem is the Viper don't start switching. I'm not new to Spice Tools but I've no idea what's the reason for that.

[Nickname6829_O]

Posted on June 08, 2016 at 14:11

Hello Jens,

I'm sorry for the problems you are experiencing with this model.Althoughyou already solved the previous issue, I'm sending in attachment a new version of the model that contains the missing bipolar library. Regarding your last post, please be sure that you set the option ''initialize al FF to 0'' as described in the short document attached to the model. If you have already done it, Ineed the complete OrCAD project you are trying to simulate to help you.Would it possible to haveit? Thanks for your patience. Best Regards, CarmeloVicari

From: koehler.jens

Posted: Wednesday, June 08, 2016 12:42 PM Subject: Orcad and Viper06L Model

Actually I'm going crazy with this model. Now I got it working with model for Q40235 fromhttp://robustdesignconcepts.com/files/pspice/pmindex.htm -->bipolar.lib

But the problem is the Viper don't start switching. I'm not new to Spice Tools but I've no idea what's the reason for that. ________________ Attachments : VIPER06.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HzEE&d=%2Fa%2F0X0000000bIe%2FQIb18IuTnzdCPWUYqdqIl4l6QEy5p9EQw5VGWmwoTzc&asPdf=false

[jens2399]

Posted on June 10, 2016 at 08:03

Hello,

I'm not able to open the attached zip file. It seems to be defective. I already set initialize FFs to 0 so I send you my project. Attached you'll find my test project. Hope it helps. ________________ Attachments : Test_Viper.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HzE4&d=%2Fa%2F0X0000000bId%2FFzsztaLBV3fUZoDSaTC3InHb7Wm43C12BbdsmCsguNM&asPdf=false

[Nickname6829_O]

Posted on June 10, 2016 at 09:34

Dear Jens,

the VIPER06 model did not start switching because it needs a rising edge on the DRAIN PIN to detect the power on. Toreproduce this behaviorI just replaced the VDC source with a VPULSE sourcewhich goes from 0V to 350V. In addition, the coupling modelKBREAK was not working properly. I replaced it with the K_Linear device from the analog library of ORCAD. I'm sending in attachment the updated project. Inside the ''en.VIPER06_spice'' folderyou can also findthe latest version of the VIPER06 model, the same thatyou were unable to open from my previous post. Hope it doesn't get corrupted again. Feel free to contact me for further clarifications. Best Regards, Carmelo ________________ Attachments : Test_Viper_v2.0.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006Hz2V&d=%2Fa%2F0X0000000bIc%2FWWTEIMV.nMJdV26nW4fcubKh68.dzj8dYHd703_8ppo&asPdf=false