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Checking the stability analysis of a buck converter using SIMPLIS where to keep POP Trigger

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newbie_hs

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I am new to SIMPLIS.I need to check the stability of below buck converter circuit (12 V in, 5 V out,3A, FSW=500 kHz) using SIMPLIS.

9fca5.png


For this I need to perform an AC analysis. During the AC analysis, I need to keep POP trigger block.

I checked in many places in internet for 'Where to keep this POP trigger block' in the buck converter circuit and how to configure it.

I tried all the methods I found, but my simulation is not working. I am getting the below errors.

The periodic operating point (POP) analysis has failed to converge. AC analysis will not be performed.

Reaching a time duration equal to `2.00000e-06' without registering the triggering condition that defines the start of a period. Check your circuit and/or initial conditions.


Can someone help me how to configure this block and perform the stability analysis?
 

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