Overall Voltage Gain of Source Follower Calculator

✖Load resistance is the resistance value of load given for the network.ⓘ Load Resistance [R_L]			+10% -10%
✖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.ⓘ MOSFET Primary Transconductance [g_mp]			+10% -10%

✖Overall voltage gain is a ratio of equal units (power out / power in, voltage out / voltage in, or current out / current in).ⓘ Overall Voltage Gain of Source Follower [G_v]

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Overall Voltage Gain of Source Follower Solution

STEP 0: Pre-Calculation Summary

Formula Used

Overall Voltage Gain = Load Resistance/(Load Resistance+1/MOSFET Primary Transconductance)
G_v = R_L/(R_L+1/g_mp)
This formula uses 3 Variables

Variables Used

Overall Voltage Gain - Overall voltage gain is a ratio of equal units (power out / power in, voltage out / voltage in, or current out / current in).
Load Resistance - (Measured in Ohm) - Load resistance is the resistance value of load given for the network.
MOSFET Primary Transconductance - (Measured in Siemens) - 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.

STEP 1: Convert Input(s) to Base Unit

Load Resistance: 1.013 Kilohm --> 1013 Ohm (Check conversion here)
MOSFET Primary Transconductance: 19.77 Millisiemens --> 0.01977 Siemens (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

G_v = R_L/(R_L+1/g_mp) --> 1013/(1013+1/0.01977)

Evaluating ... ...

G_v = 0.952442120872154

STEP 3: Convert Result to Output's Unit

0.952442120872154 --> No Conversion Required

FINAL ANSWER

0.952442120872154 ≈ 0.952442 <-- Overall Voltage Gain

(Calculation completed in 00.020 seconds)

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< Common Source Amplifier Calculators

Overall Feedback Voltage Gain of Common-Source Amplifier

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

Open-Circuit Voltage Gain of CS Amplifier

LaTeX Go Open Circuit Voltage Gain = Finite Output Resistance/(Finite Output Resistance+1/MOSFET Primary Transconductance)

Current Gain of Controlled Source Transistor

LaTeX Go Current Gain = 1/(1+1/(MOSFET Primary Transconductance*Resistance between Drain and Ground))

Total Voltage Gain of CS Amplifier

LaTeX Go Voltage Gain = Load Voltage/Input Voltage

< Common Stage Amplifiers Gain Calculators

Overall Feedback Voltage Gain of Common-Collector Amplifier

LaTeX Go Overall Voltage Gain = ((Collector Base Current Gain+1)*Load Resistance)/((Collector Base Current Gain+1)*Load Resistance+(Collector Base Current Gain+1)*Emitter Resistance+Signal Resistance)

Negative Voltage Gain from Base to Collector

LaTeX Go Negative Voltage Gain = -Common Base Current Gain*(Collector Resistance/Emitter Resistance)

Common Base Current Gain

LaTeX Go Common Base Current Gain = (Voltage Gain*Emitter Resistance/Collector Resistance)

Voltage Gain of Common-Base Amplifier

LaTeX Go Voltage Gain = Collector Voltage/Emitter Voltage

Overall Voltage Gain of Source Follower Formula

LaTeX Go

Overall Voltage Gain = Load Resistance/(Load Resistance+1/MOSFET Primary Transconductance)
G_v = R_L/(R_L+1/g_mp)

What is common drain amplifier or source-follower?

A common-drain amplifier is one in which the input signal is applied to the gate and the output is taken from the source, making the drain common to both. Because it is common, there is no need for a drain resistor. A common-drain amplifier is shown below. A common-drain amplifier is also called a source-follower.

How to Calculate Overall Voltage Gain of Source Follower?

Overall Voltage Gain of Source Follower calculator uses Overall Voltage Gain = Load Resistance/(Load Resistance+1/MOSFET Primary Transconductance) to calculate the Overall Voltage Gain, The overall voltage gain of source follower formula provides high input impedance and low output impedance, resulting in negligible voltage amplification but efficient impedance matching. Overall Voltage Gain is denoted by G_v symbol.

How to calculate Overall Voltage Gain of Source Follower using this online calculator? To use this online calculator for Overall Voltage Gain of Source Follower, enter Load Resistance (R_L) & MOSFET Primary Transconductance (g_mp) and hit the calculate button. Here is how the Overall Voltage Gain of Source Follower calculation can be explained with given input values -> 0.952308 = 1013/(1013+1/0.01977).

FAQ

What is Overall Voltage Gain of Source Follower?

The overall voltage gain of source follower formula provides high input impedance and low output impedance, resulting in negligible voltage amplification but efficient impedance matching and is represented as G_v = R_L/(R_L+1/g_mp) or Overall Voltage Gain = Load Resistance/(Load Resistance+1/MOSFET Primary Transconductance). Load resistance is the resistance value of load given for the network & 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.

How to calculate Overall Voltage Gain of Source Follower?

The overall voltage gain of source follower formula provides high input impedance and low output impedance, resulting in negligible voltage amplification but efficient impedance matching is calculated using Overall Voltage Gain = Load Resistance/(Load Resistance+1/MOSFET Primary Transconductance). To calculate Overall Voltage Gain of Source Follower, you need Load Resistance (R_L) & MOSFET Primary Transconductance (g_mp). With our tool, you need to enter the respective value for Load Resistance & MOSFET Primary Transconductance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Overall Voltage Gain?

In this formula, Overall Voltage Gain uses Load Resistance & MOSFET Primary Transconductance. We can use 1 other way(s) to calculate the same, which is/are as follows -

Overall Voltage Gain = ((Collector Base Current Gain+1)*Load Resistance)/((Collector Base Current Gain+1)*Load Resistance+(Collector Base Current Gain+1)*Emitter Resistance+Signal Resistance)

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