Integrating operational amplifier

AI Thread Summary
The discussion focuses on calculating the output voltage of an integrating operational amplifier circuit with an added resistor and capacitor at the inverting terminal. Participants emphasize the need to apply Kirchhoff's Current Law (KCL) to derive the correct equations for the circuit. There is confusion regarding how to incorporate the series RC components into the analysis. Clarification is sought on forming the correct KCL equation to relate the input and output voltages. The importance of accurately summing currents in the circuit is highlighted to resolve the problem.
maven sharma
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Homework Statement


Calculate the output voltage of the amplifier
lWWX9.jpg

2. Homework Equations
classic_circuit_1000-jpg.jpg
[/B]
https://www.electronics-tutorials.ws/opamp/opamp32.gif

The Attempt at a Solution


I do not know how to approach a circuit with RC in series to inverting terminal of integrating op amp
 

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maven sharma said:
I do not know how to approach a circuit with RC in series to inverting terminal of integrating op amp
You still write the KCL equation at the "-" input to the opamp. The impedance to the right is just the sum of the impedances of the resistor and capacitor. Can you show us that equation and then how you would solve it to get Vo/Vi? :smile:
 
berkeman said:
You still write the KCL equation at the "-" input to the opamp. The impedance to the right is just the sum of the impedances of the resistor and capacitor. Can you show us that equation and then how you would solve it to get Vo/Vi? :smile:
upload_2018-5-2_18-2-12.png


yeah i can do it when its standard integrating op amp circuit but when a resister ans capacitor is added(see below image) to the inverting terminal in feedback then i don't know how to form equation
lwwx9-jpg.jpg
 

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maven sharma said:
View attachment 225039

yeah i can do it when its standard integrating op amp circuit but when a resister ans capacitor is added(see below image) to the inverting terminal in feedback then i don't know how to form equation
View attachment 225040
upload_2018-5-2_18-24-36.jpeg

Am I right?
 

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