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Simscape opamp not working with common mode dc voltage bias

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Anubhav
Anubhav 2014 年 1 月 15 日
I have built a dc-dc converter using SimPowerSystems. I am trying to construct the controller by using Opamp from the SimScape-->Electrical Systems library. Please see attached snapshot 'CommonModeProb'. When I run the simulation, it shows the error aas shown in attached file 'Error.png'. The error goes away if I run the same simulation bafter deleting the common mode voltage (circled in snapshot). Please advise why realising such a simple/basic circuit is showing error. I feel for an ideal opamp, the magnitude of dc common mode voltage should not matter!
With Regards,
Anubhav

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