Loop Gain in Feedback Amplifiers Formulas

The loop gain is calculated by imagining the feedback loop is broken at some point and calculating the net gain if a signal is applied. And is denoted by Aβ.

Formulas to find Loop Gain in Feedback Amplifiers

fxLoop Gain of Feedback AmplifierGo

Feedback Amplifiers formulas that make use of Loop Gain

fxOutput Current of Feedback Voltage Amplifier Given Loop GainGo

fxInput Resistance with Feedback of Feedback Voltage Amplifier Given Loop GainGo

fxOutput Resistance with Feedback Voltage AmplifierGo

fxAmount of Feedback Given Loop GainGo

fxClosed-Loop Gain as Function of Ideal ValueGo

fxInput Resistance with Feedback Current AmplifierGo

List of variables in Feedback Amplifiers formulas

fx Returned Signal Go

fx Test Signal Go

FAQ

What is the Loop Gain?

The loop gain is calculated by imagining the feedback loop is broken at some point and calculating the net gain if a signal is applied.

Can the Loop Gain be negative?

{YesorNo}, the Loop Gain, measured in {OutputVariableMeasurementName} {CanorCannot} be negative.

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