Posted on September 07, 2016 at 16:41 Hello Andres,
I had a look at your design.
Firstly, I noticed that the simulation was not starting correctly because to use this model it is necessary to set the option ''Initialize all flip-flops to:'' to 0 in the simulation profile (see slide #1 of the pdf attached). The usage instructions were missing in this model, I apologize for that.
Then I found out that the transformer model E30_15_7_3C90 was not working correctly, causing convergence problems. I tried to run a simulation by replacing the model of the VIPER27 with a simple switch controlled by a VPULSE with constant duty cycle and I did not obtain the expected results (output voltages were not rising).
I was able to simulate the circuit by replacing E30_15_7_3C90 with the K_Linear part from analog lib. You find all the updates in the attached project.
If you should have convergence problems I suggest you to set the Speed Level to 4 and to set the auto-convergence option in the simulation profile (see slide #2).
Finally inside the folders VIPer17_ORCAD and VIPer27_ORCAD you can find the latest versions of the models. They contains only minor changes.
Feel free to contact me for further problems/clarifications.
Best Regards,
Carmelo
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Attachments : SIM_SETTINGS_ORCAD.pdf :
https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HzBp&d=%2Fa%2F0X0000000bIb%2F6.ZWr46sh0gGg5bCqC54GWwibEKfe4OfWY9VGdDof.Q&asPdf=falsesimulacion_fuente_ST_update.zip :
https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HzDz&d=%2Fa%2F0X0000000bIa%2Fkv2VvPgnAyWRUWqFkLnk3lTG5KHoE.IExn9eM4__oeU&asPdf=false
