Basic circuit Simulation

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

Hi all,
I am new to this software and I was trying to simulate a basic circuit with A.C voltage source of 17.9 Volts at 13.56MHz. I am attaching file below if you guys want to look at it. It have a series R-L circuit connected to Parallel R-C circuit. I am trying to get output at parallel R-C circuit.
The output voltage I am getting is about 50 volts which is way greater than input voltage. Can anyone explain reason of it.?
Thanks in advance.

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Answers

  • Rhonda_20369
    Rhonda_20369 New Altair Community Member
    edited August 2023

    Sorry, the attached file is missing.

    Usually, if your R-L-C circuit doesn't have sufficient damping, it takes a long time for the voltage and current to reach steady state.

    With an AC voltage source as the input, the initial current in L and the initial voltage in C would indicate the initial energy stored at time=0.

    For example, if the AC voltage across your L starts at phase 0, the initial current in L should not be set at 0. The current in L has a phase of 90deg from its voltage.