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Overall Voltage Gain of Common-Emitter Amplifier Formula

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

G_fv - Feedback Voltage Gain?g_mp - MOSFET Primary Transconductance?R_in - Input Resistance?R_sig - Signal Resistance?R_c - Collector Resistance?R_L - Load Resistance?R_out - Finite Output Resistance?

Overall Voltage Gain of Common-Emitter Amplifier Example

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

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

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

-0.8662 = - 19.77 \cdot (\frac{0.301}{0.301 + 1.12}) \cdot {(\frac{1}{1.01} + \frac{1}{1.013} + \frac{1}{0.35})}^{- 1}

-0.8662 = - 19.77mS \cdot (\frac{0.301kΩ}{0.301kΩ + 1.12kΩ}) \cdot {(\frac{1}{1.01kΩ} + \frac{1}{1.013kΩ} + \frac{1}{0.35kΩ})}^{- 1}

-0.8662 = - 19.77 \cdot (\frac{0.301}{0.301 + 1.12}) \cdot {(\frac{1}{1.01} + \frac{1}{1.013} + \frac{1}{0.35})}^{- 1}

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Overall Voltage Gain of Common-Emitter Amplifier Solution

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

FIRST Step Consider the formula

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}

Next Step Substitute values of Variables

∴

G fv = - 19.77mS \cdot (\frac{0.301kΩ}{0.301kΩ + 1.12kΩ}) \cdot {(\frac{1}{1.01kΩ} + \frac{1}{1.013kΩ} + \frac{1}{0.35kΩ})}^{- 1}

Next Step Convert Units

∴

G fv = - 0.0198S \cdot (\frac{301Ω}{301Ω + 1120Ω}) \cdot {(\frac{1}{1010Ω} + \frac{1}{1013Ω} + \frac{1}{350Ω})}^{- 1}

Next Step Prepare to Evaluate

∴

G fv = - 0.0198 \cdot (\frac{301}{301 + 1120}) \cdot {(\frac{1}{1010} + \frac{1}{1013} + \frac{1}{350})}^{- 1}

Next Step Evaluate

∴

G fv = -0.866234994090138

LAST Step Rounding Answer

∴

G fv = -0.8662

Overall 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

MOSFET Primary Transconductance

MOSFET Primary Transconductance is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage.

Symbol: g_mp

Measurement: TransconductanceUnit: mS