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Using AC Analysis in Spice to measure the input/output impedance

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danda821

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Is there any way I can use AC analysis in Spice to measure the input/output impedance? Thanks.
 

measure input impedance ac analysis

Remember Z = V/I
 

ac analysis

u want measure the input impedance by putting 1V Ac and measure current drawn from it,and also for the output
 

ac analyi

measure the input impedance by putting 1V Ac and measure current
Click to expand...
This results in an admittance measurement. For a direct impedance measurement, apply 1A IAC instead and measure the voltage drop.
 

what is ac analysis

it doesn't matter take the expression as u like it can give u admittance or impedance
 

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