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How to find input impedance of RC phase shift circuit ?

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pankaj.patil

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Hello Sir
How to find input impedance of RC phase shift circuit ?

Thank You
 

The impedance is the vector sum of resistance and capacitive reactance.

For a cap, the impedance is 1/(2 π f C)
 
thank You for answer
It is very use full for me
 

Hello sir,
Phase shift circuit design for 735MHz frequency,and used for 570MHz to 900MHz frequency, so can we consider as capacitor short circuit, what happen if capacitor consider as shotr circuit ?

Thank You
 

Hi. When a cap is to consider as a short, is when the capacitive reactance is so small that virtually zeero voltage will be above it (need to think a little how to make the grammer right on this).
 

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