Gain with Feedback of Feedback Amplifier Calculator

✖The Open Loop Gain of an Operational Amplifier is gain of an op-amp without feedback. It is denoted as A.ⓘ Open Loop Gain of an Operational Amplifier [A]			+10% -10%
✖Amount of feedback is the transmission of evaluative or corrective information about an action, event, or process to the original or controlling source also: the information so transmitted.ⓘ Amount of Feedback [F_am]			+10% -10%

✖Gain with feedback is the gain of the feedback amplifier, known as the closed-loop gain or the gain-with-feedback.ⓘ Gain with Feedback of Feedback Amplifier [A_f]

⎘ Copy

👎

Formula

✖

Gain with Feedback of Feedback Amplifier

Formula

`"A"_{"f"} = ("A")/"F"_{"am"}`

Example

`"0.611111"=("2.2")/"3.6"`

Calculator

LaTeX

Reset

👍

Download Feedback Amplifiers Formula PDF

Gain with Feedback of Feedback Amplifier Solution

STEP 0: Pre-Calculation Summary

Formula Used

Gain with Feedback = (Open Loop Gain of an Operational Amplifier)/Amount of Feedback
A_f = (A)/F_am
This formula uses 3 Variables

Variables Used

Gain with Feedback - Gain with feedback is the gain of the feedback amplifier, known as the closed-loop gain or the gain-with-feedback.
Open Loop Gain of an Operational Amplifier - The Open Loop Gain of an Operational Amplifier is gain of an op-amp without feedback. It is denoted as A.
Amount of Feedback - Amount of feedback is the transmission of evaluative or corrective information about an action, event, or process to the original or controlling source also: the information so transmitted.

STEP 1: Convert Input(s) to Base Unit

Open Loop Gain of an Operational Amplifier: 2.2 --> No Conversion Required
Amount of Feedback: 3.6 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

A_f = (A)/F_am --> (2.2)/3.6

Evaluating ... ...

A_f = 0.611111111111111

STEP 3: Convert Result to Output's Unit

0.611111111111111 --> No Conversion Required

FINAL ANSWER

0.611111111111111 ≈ 0.611111 <-- Gain with Feedback

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electronics » Amplifiers » Feedback Amplifiers » Basic Characteristics » Gain with Feedback of Feedback Amplifier

Credits

Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

Payal Priya has created this Calculator and 600+ more calculators!

Verified by Anshika Arya

National Institute Of Technology (NIT), Hamirpur

Anshika Arya has verified this Calculator and 2500+ more calculators!

< 4 Basic Characteristics Calculators

Summing Amplifier

Go Output Voltage of Summing Amplifier = -(Feedback Resistance/Input Resistance of Summing Amplifier)*(sum(x,1,Number of Input Voltages of Summing Amplifier,Input Voltages of Summing Amplifier))

Gain with Feedback of Feedback Amplifier

Go Gain with Feedback = (Open Loop Gain of an Operational Amplifier)/Amount of Feedback

Closed-Loop Gain as Function of Ideal Value

Go Closed-Loop Gain = (1/Feedback Factor)*(1/(1+(1/Loop Gain)))

Amount of Feedback Given Loop Gain

Go Amount of Feedback = 1+Loop Gain

< 15 Negative Feedback Amplifiers Calculators

Feedback Signal

Go Feedback Signal = ((Open Loop Gain of an Operational Amplifier*Feedback Factor)/(1+(Open Loop Gain of an Operational Amplifier*Feedback Factor)))*Source Signal

Error Signal

Go Error Signal = Source Signal/(1+(Open Loop Gain of an Operational Amplifier*Feedback Factor))

Gain at Mid and High Frequencies

Go Gain Factor = Mid Band Gain/(1+(Complex Frequency Variable/Upper 3-dB Frequency))

Signal-to-Interference Ratio at Output

Go Signal to Interference Ratio = (Source Voltage/Voltage Interference)*Gain Factor

Lower 3-DB Frequency in Bandwidth Extension

Go Lower 3-dB Frequency = 3-dB Frequency/(1+(Mid Band Gain*Feedback Factor))

Upper 3-DB Frequency of Feedback Amplifier

Go Upper 3-dB Frequency = 3-dB Frequency*(1+Mid Band Gain*Feedback Factor)

Output Current of Feedback Voltage Amplifier Given Loop Gain

Go Output Current = (1+Loop Gain)*Output Voltage/Output Resistance

Gain with Feedback of Feedback Amplifier

Go Gain with Feedback = (Open Loop Gain of an Operational Amplifier)/Amount of Feedback

Output Signal in Feedback Amplifier

Go Signal Output = Open Loop Gain of an Operational Amplifier*Input Signal Feedback

Output Resistance with Feedback Current Amplifier

Go Output Resistance of Current Amplifier = Amount of Feedback*Output Resistance

Output Resistance with Feedback Voltage Amplifier

Go Output Resistance of Voltage Amplifier = Output Resistance/(1+Loop Gain)

Input Resistance with Feedback Current Amplifier

Go Input Resistance with Feedback = Input Resistance/(1+Loop Gain)

Closed-Loop Gain as Function of Ideal Value

Go Closed-Loop Gain = (1/Feedback Factor)*(1/(1+(1/Loop Gain)))

Feedback Factor of Feedback Amplifier

Go Feedback Factor = Input Signal Feedback/Signal Output

Amount of Feedback Given Loop Gain

Go Amount of Feedback = 1+Loop Gain

Gain with Feedback of Feedback Amplifier Formula

Gain with Feedback = (Open Loop Gain of an Operational Amplifier)/Amount of Feedback
A_f = (A)/F_am

What is the effect of negative feedback on an amplifier?

Negative feedback reduces the gain of the amplifier. It also reduces distortion, noise, and instability. This feedback increases bandwidth and improves input and output impedances. Due to these advantages, negative feedback is frequently used in amplifiers.

How to Calculate Gain with Feedback of Feedback Amplifier?

Gain with Feedback of Feedback Amplifier calculator uses Gain with Feedback = (Open Loop Gain of an Operational Amplifier)/Amount of Feedback to calculate the Gain with Feedback, Gain with Feedback of Feedback Amplifier refers to the overall amplification achieved by applying feedback to an amplifier, reducing distortion and improving stability, resulting in controlled and enhanced signal amplification. Gain with Feedback is denoted by A_f symbol.

How to calculate Gain with Feedback of Feedback Amplifier using this online calculator? To use this online calculator for Gain with Feedback of Feedback Amplifier, enter Open Loop Gain of an Operational Amplifier (A) & Amount of Feedback (F_am) and hit the calculate button. Here is how the Gain with Feedback of Feedback Amplifier calculation can be explained with given input values -> 0.611111 = (2.2)/3.6.

FAQ

What is Gain with Feedback of Feedback Amplifier?

Gain with Feedback of Feedback Amplifier refers to the overall amplification achieved by applying feedback to an amplifier, reducing distortion and improving stability, resulting in controlled and enhanced signal amplification and is represented as A_f = (A)/F_am or Gain with Feedback = (Open Loop Gain of an Operational Amplifier)/Amount of Feedback. The Open Loop Gain of an Operational Amplifier is gain of an op-amp without feedback. It is denoted as A & Amount of feedback is the transmission of evaluative or corrective information about an action, event, or process to the original or controlling source also: the information so transmitted.

How to calculate Gain with Feedback of Feedback Amplifier?

Gain with Feedback of Feedback Amplifier refers to the overall amplification achieved by applying feedback to an amplifier, reducing distortion and improving stability, resulting in controlled and enhanced signal amplification is calculated using Gain with Feedback = (Open Loop Gain of an Operational Amplifier)/Amount of Feedback. To calculate Gain with Feedback of Feedback Amplifier, you need Open Loop Gain of an Operational Amplifier (A) & Amount of Feedback (F_am). With our tool, you need to enter the respective value for Open Loop Gain of an Operational Amplifier & Amount of Feedback and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search