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AC Sweep not working for LLC Resonant Converter

0 votes
Hi all,

I am trying to run AC sweep for LLC converter but it is not recognizing  the system period. Is there any way to go about it?
asked Jan 13, 2020 by Maida (16 points)

1 Answer

+1 vote

For converters with variable-frequency control a Multitone Analysis should be used for generating the frequency response. The AC Sweep tool employs the Steady-State Analysis that needs the information of the system period, which for variable-frequency controlled converters, is not known prior to the simulation. Please also see the PLECS demo model "Half-Bridge LLC Converter with Analysis Tools" for an example. Good luck!


answered Jan 14, 2020 by Kris Eberle (1,288 points)