Loop of calculation of gain and phase in multisim

I am trying to simulate the loop gain and phase for an oscillator in multisim.  I use the Middlebrook method and can get the gain in current and the gain in voltage by using the function "add the words" in the analysis.  Then, I need to use these winnings to calculate the loop gain and phase using the equation T = ((Ti*Tv)-1) /(Ti+Tv+2), where Ti and Tv are respectively the current and voltage gains.  I have been unable to bring the last expression and will appreciate any help.

Thank you

André

André,

Yes, the Middlebrook analysis technique can be implemented with Multisim.   Please see the circuit below as an example on how to apply this method in Multisim.

Let me know if you have any questions.

Kind regards

Pat Noonan

National Instruments

Tags: NI Software

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