How to simulate ac response of loop gain in a loop amplify?

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huojinsi

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In a loop amplify,assume open gain is A,and feedback gain is F.So the loop gain is AF. How can i simulate the Amplitude and Phase's frequency response of AF with SpectreS tool? Pls help me,ths!
 

Re: How to simulate ac response of loop gain in a loop ampli

Hi huojinsi,If u want to know Frequency and phase response of a circuit,pls do AC analysis simulation in spectre. Look the cdsdoc for details.In fact,it's very simple.
 

Re: How to simulate ac response of loop gain in a loop ampli

us .ac simulation for open loop circuit and then use close loop equations for final result
 

Re: How to simulate ac response of loop gain in a loop ampli

do .ac analaysis
and compare them in result brower
 

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