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Open-Circuit Voltage Gain of CS Amplifier Formula

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Open circuit voltage gain is the voltage gain of the amplifier at an open circuit. Check FAQs

A oc = \frac{R out}{R out + \frac{1}{g mp}}

A_oc - Open Circuit Voltage Gain?R_out - Finite Output Resistance?g_mp - MOSFET Primary Transconductance?

Open-Circuit Voltage Gain of CS Amplifier Example

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Here is how the Open-Circuit Voltage Gain of CS Amplifier equation looks like with Values.

Here is how the Open-Circuit Voltage Gain of CS Amplifier equation looks like with Units.

Here is how the Open-Circuit Voltage Gain of CS Amplifier equation looks like.

0.8737 = \frac{0.35}{0.35 + \frac{1}{19.77}}

0.8737 = \frac{0.35kΩ}{0.35kΩ + \frac{1}{19.77mS}}

0.8737 = \frac{0.35}{0.35 + \frac{1}{19.77}}

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Open-Circuit Voltage Gain of CS Amplifier Solution

Follow our step by step solution on how to calculate Open-Circuit Voltage Gain of CS Amplifier?

FIRST Step Consider the formula

A oc = \frac{R out}{R out + \frac{1}{g mp}}

Next Step Substitute values of Variables

∴

A oc = \frac{0.35kΩ}{0.35kΩ + \frac{1}{19.77mS}}

Next Step Convert Units

∴

A oc = \frac{350Ω}{350Ω + \frac{1}{0.0198S}}

Next Step Prepare to Evaluate

∴

A oc = \frac{350}{350 + \frac{1}{0.0198}}

Next Step Evaluate

∴

A oc = 0.873729402108719

LAST Step Rounding Answer

∴

A oc = 0.8737

Open-Circuit Voltage Gain of CS Amplifier Formula Elements

Variables

Open Circuit Voltage Gain

Open circuit voltage gain is the voltage gain of the amplifier at an open circuit.

Symbol: A_oc

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Open Circuit Voltage Gain

Finite Output Resistance

The finite output resistance is a measure of how much the transistor's output impedance varies with changes in the output voltage.

Symbol: R_out

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Finite Output Resistance

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

Note: Value should be greater than 0.

Formulas to find MOSFET Primary Transconductance

Other formulas in Common Source 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 Open-Circuit Voltage Gain of CS Amplifier?

Open-Circuit Voltage Gain of CS Amplifier evaluator uses Open Circuit Voltage Gain = Finite Output Resistance/(Finite Output Resistance+1/MOSFET Primary Transconductance) to evaluate the Open Circuit Voltage Gain, The Open-circuit voltage gain of CS amplifier formula is defined as input is voltage between gate and ground, and output is voltage between drain and ground. Open Circuit Voltage Gain is denoted by A_oc symbol.

How to evaluate Open-Circuit Voltage Gain of CS Amplifier using this online evaluator? To use this online evaluator for Open-Circuit Voltage Gain of CS Amplifier, enter Finite Output Resistance (R_out) & MOSFET Primary Transconductance (g_mp) and hit the calculate button.

FAQs on Open-Circuit Voltage Gain of CS Amplifier

What is the formula to find Open-Circuit Voltage Gain of CS Amplifier?

The formula of Open-Circuit Voltage Gain of CS Amplifier is expressed as Open Circuit Voltage Gain = Finite Output Resistance/(Finite Output Resistance+1/MOSFET Primary Transconductance). Here is an example- 0.873724 = 350/(350+1/0.01977).

How to calculate Open-Circuit Voltage Gain of CS Amplifier?

With Finite Output Resistance (R_out) & MOSFET Primary Transconductance (g_mp) we can find Open-Circuit Voltage Gain of CS Amplifier using the formula - Open Circuit Voltage Gain = Finite Output Resistance/(Finite Output Resistance+1/MOSFET Primary Transconductance).

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Open-Circuit Voltage Gain of CS Amplifier Formula

Open-Circuit Voltage Gain of CS Amplifier Example

Open-Circuit Voltage Gain of CS Amplifier Solution

Open-Circuit Voltage Gain of CS Amplifier Formula Elements

Other formulas in Common Source Amplifier category

How to Evaluate Open-Circuit Voltage Gain of CS Amplifier?

FAQs on Open-Circuit Voltage Gain of CS Amplifier

Variable Name