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Overall Feedback Voltage Gain of Common-Emitter Amplifier Formula

GoOverall Voltage Gain of Common-Emitter Amplifier Formula

GoOverall Feedback Voltage Gain of Common-Source Amplifier Formula

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Feedback Voltage Gain is a measure of the gain of an amplifier or electronic system that is derived from the input voltage and feedback from the output. Check FAQs

G fv = - α \cdot \frac{R c}{R e} \cdot (\frac{R in}{R in + R sig})

G_fv - Feedback Voltage Gain?α - Common Base Current Gain?R_c - Collector Resistance?R_e - Emitter Resistance?R_in - Input Resistance?R_sig - Signal Resistance?

Overall Feedback Voltage Gain of Common-Emitter Amplifier Example

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Here is how the Overall Feedback Voltage Gain of Common-Emitter Amplifier equation looks like with Values.

Here is how the Overall Feedback Voltage Gain of Common-Emitter Amplifier equation looks like with Units.

Here is how the Overall Feedback Voltage Gain of Common-Emitter Amplifier equation looks like.

-0.8621 = - 0.27 \cdot \frac{1.01}{0.067} \cdot (\frac{0.301}{0.301 + 1.12})

-0.8621 = - 0.27 \cdot \frac{1.01kΩ}{0.067kΩ} \cdot (\frac{0.301kΩ}{0.301kΩ + 1.12kΩ})

-0.8621 = - 0.27 \cdot \frac{1.01}{0.067} \cdot (\frac{0.301}{0.301 + 1.12})

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Overall Feedback Voltage Gain of Common-Emitter Amplifier Solution

Follow our step by step solution on how to calculate Overall Feedback Voltage Gain of Common-Emitter Amplifier?

FIRST Step Consider the formula

G fv = - α \cdot \frac{R c}{R e} \cdot (\frac{R in}{R in + R sig})

Next Step Substitute values of Variables

∴

G fv = - 0.27 \cdot \frac{1.01kΩ}{0.067kΩ} \cdot (\frac{0.301kΩ}{0.301kΩ + 1.12kΩ})

Next Step Convert Units

∴

G fv = - 0.27 \cdot \frac{1010Ω}{67Ω} \cdot (\frac{301Ω}{301Ω + 1120Ω})

Next Step Prepare to Evaluate

∴

G fv = - 0.27 \cdot \frac{1010}{67} \cdot (\frac{301}{301 + 1120})

Next Step Evaluate

∴

G fv = -0.862149841923388

LAST Step Rounding Answer

∴

G fv = -0.8621

Overall Feedback Voltage Gain of Common-Emitter Amplifier Formula Elements

Variables

Feedback Voltage Gain

Feedback Voltage Gain is a measure of the gain of an amplifier or electronic system that is derived from the input voltage and feedback from the output.

Symbol: G_fv

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Feedback Voltage Gain

Common Base Current Gain

Common Base Current Gain α is related to β common-emitter current gain of a transistor and used for calculations.

Symbol: α

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Common Base Current Gain

Collector Resistance

The Collector Resistancer is the opposition offered to the current passing through the collector.

Symbol: R_c

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Collector Resistance

Emitter Resistance

Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.

Symbol: R_e

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Emitter Resistance

Input Resistance

Input resistance 2 is the opposition that an electrical component or circuit presents to the flow of electrical current when a voltage is applied to it.

Symbol: R_in

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Input Resistance

Signal Resistance

Signal resistance is the resistance which is fed with the signal voltage source of an Amplifier.

Symbol: R_sig

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Signal Resistance

Other Formulas to find Feedback Voltage Gain

Go Overall Voltage Gain of Common-Emitter Amplifier

G fv = - g mp \cdot (\frac{R in}{R in + R sig}) \cdot {(\frac{1}{R c} + \frac{1}{R L} + \frac{1}{R out})}^{- 1}

Go Overall Feedback Voltage Gain of Common-Source Amplifier

G fv = - g mp \cdot (\frac{R in}{R in + R sig}) \cdot {(\frac{1}{R d} + \frac{1}{R L} + \frac{1}{R out})}^{- 1}

Other formulas in Common Emitter Amplifier category

Go Common Base Current Gain

α = (A v \cdot \frac{R e}{R c})

Go Negative Voltage Gain from Base to Collector

A vn = - α \cdot (\frac{R c}{R e})

Go Voltage Gain of Common-Base Amplifier

A v = \frac{V c}{V e}

Go Overall Feedback Voltage Gain of Common-Collector Amplifier

G v = \frac{(β + 1) \cdot R L}{(β + 1) \cdot R L + (β + 1) \cdot R e + R sig}

How to Evaluate Overall Feedback Voltage Gain of Common-Emitter Amplifier?

Overall Feedback Voltage Gain of Common-Emitter Amplifier evaluator uses Feedback Voltage Gain = -Common Base Current Gain*Collector Resistance/Emitter Resistance*(Input Resistance/(Input Resistance+Signal Resistance)) to evaluate the Feedback Voltage Gain, Overall Feedback Voltage Gain of Common-Emitter Amplifier represents the ratio of output voltage with feedback to the input voltage without feedback, indicating the amplification factor with feedback applied. Feedback Voltage Gain is denoted by G_fv symbol.

How to evaluate Overall Feedback Voltage Gain of Common-Emitter Amplifier using this online evaluator? To use this online evaluator for Overall Feedback Voltage Gain of Common-Emitter Amplifier, enter Common Base Current Gain (α), Collector Resistance (R_c), Emitter Resistance (R_e), Input Resistance (R_in) & Signal Resistance (R_sig) and hit the calculate button.

FAQs on Overall Feedback Voltage Gain of Common-Emitter Amplifier

What is the formula to find Overall Feedback Voltage Gain of Common-Emitter Amplifier?

The formula of Overall Feedback Voltage Gain of Common-Emitter Amplifier is expressed as Feedback Voltage Gain = -Common Base Current Gain*Collector Resistance/Emitter Resistance*(Input Resistance/(Input Resistance+Signal Resistance)). Here is an example- -0.874922 = -0.27*1010/67*(301/(301+1120)).

How to calculate Overall Feedback Voltage Gain of Common-Emitter Amplifier?

With Common Base Current Gain (α), Collector Resistance (R_c), Emitter Resistance (R_e), Input Resistance (R_in) & Signal Resistance (R_sig) we can find Overall Feedback Voltage Gain of Common-Emitter Amplifier using the formula - Feedback Voltage Gain = -Common Base Current Gain*Collector Resistance/Emitter Resistance*(Input Resistance/(Input Resistance+Signal Resistance)).

What are the other ways to Calculate Feedback Voltage Gain?

Here are the different ways to Calculate Feedback Voltage Gain-

Feedback Voltage Gain=-MOSFET Primary Transconductance*(Input Resistance/(Input Resistance+Signal Resistance))*(1/Collector Resistance+1/Load Resistance+1/Finite Output Resistance)^-1
Feedback Voltage Gain=-MOSFET Primary Transconductance*(Input Resistance/(Input Resistance+Signal Resistance))*(1/Drain Resistance+1/Load Resistance+1/Finite Output Resistance)^-1

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Overall Feedback Voltage Gain of Common-Emitter Amplifier Formula

​GoOverall Voltage Gain of Common-Emitter Amplifier Formula

​GoOverall Feedback Voltage Gain of Common-Source Amplifier Formula

Overall Feedback Voltage Gain of Common-Emitter Amplifier Example

Overall Feedback Voltage Gain of Common-Emitter Amplifier Solution

Overall Feedback Voltage Gain of Common-Emitter Amplifier Formula Elements

Other Formulas to find Feedback Voltage Gain

Other formulas in Common Emitter Amplifier category

How to Evaluate Overall Feedback Voltage Gain of Common-Emitter Amplifier?

FAQs on Overall Feedback Voltage Gain of Common-Emitter Amplifier

Variable Name

GoOverall Voltage Gain of Common-Emitter Amplifier Formula

GoOverall Feedback Voltage Gain of Common-Source Amplifier Formula