Multisim and Ultiboard

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Tank circuit AC analysis


I am trying to observe the AC analysis of a tank circuit.


My AC analysis magnitude plot is a flat line of the AC magnitude.  The filter should have a Bandwidth of about 20kHz with a center frequency of 1.5MHz.




 I tired to inline the pictures but it did not work, so I attached them instead.





I have attached my schematic.

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Hi owensc,

Welcome to our forums! You are seeing that behavior because for the parallel RLC circuit Vout=Vin.


I suppose that you might want to see how the input current changes with frequency. To get this result, include I(V1) as an output for your analyses.



Andres G.


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