AC Sweep of an LLC converter

Altair Forum User
Altair Forum User
Altair Employee
edited August 2023 in Community Q&A

Hello all,

I'm trying to plot the transfer function of an LLC converter.
I get messages that the simulation has not reached steady-state in 60 cycles but when I plot the time simulations at that frequency i get pretty nice sinusoidal waveforms (attached here).

For some reason i cannot attach here the simulation itself, the upper waveform is the output signal and the bottom is the AC source.

Would appreciate any advice!

image

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Answers

  • Rhonda_20369
    Rhonda_20369 New Altair Community Member
    edited August 2023

    What is your frequency sweeping range? 

    Is this waveform for the lowest frequency in the sweeping range?

    The message "the simulation has not reached steady state in 60 cycles" is to warn the users that the Bode plot result may contain noticeable errors.

  • Albert_Dunford
    Albert_Dunford
    Altair Employee
    edited August 2023

    please post the circuit in a zip.

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