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)
Gv = RL/(RL+1/gmp)
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
Gv = RL/(RL+1/gmp) --> 1013/(1013+1/0.01977)
Evaluating ... ...
Gv = 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 00.004 seconds)

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Birsa Institute of Technology (BIT), Sindri
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11 Common-Source Amplifier Calculators

Overall Feedback Voltage Gain of Common-Source Amplifier
Go Feedback Voltage Gain = -MOSFET Primary Transconductance*(Input Resistance/(Input Resistance+Signal Resistance))*(1/Drain Resistance+1/Load Resistance+1/Finite Output Resistance)^-1
Output Voltage of Controlled Source Transistor
Go DC Component of Gate to Source Voltage = (Voltage Gain*Electric Current-Short Circuit Transconductance*Differential Output Signal)*(1/Final Resistance+1/Resistance of Primary Winding in Secondary)
Output Resistance at Another Drain of Controlled Source Transistor
Go Drain Resistance = Resistance of Secondary Winding in Primary+2*Finite Resistance+2*Finite Resistance*MOSFET Primary Transconductance*Resistance of Secondary Winding in Primary
Output Resistance of CS Amplifier with Source Resistance
Go Drain Resistance = Finite Output Resistance+Source Resistance+(MOSFET Primary Transconductance*Finite Output Resistance*Source Resistance)
Open-Circuit Voltage Gain of CS Amplifier
Go Open Circuit Voltage Gain = Finite Output Resistance/(Finite Output Resistance+1/MOSFET Primary Transconductance)
Transconductance in Common Source Amplifier
Go MOSFET Primary Transconductance = Unity Gain Frequency*(Gate to Source Capacitance+Capacitance Gate to Drain)
Overall Voltage Gain of Source Follower
Go Overall Voltage Gain = Load Resistance/(Load Resistance+1/MOSFET Primary Transconductance)
Current Gain of Controlled Source Transistor
Go Current Gain = 1/(1+1/(MOSFET Primary Transconductance*Resistance between Drain and Ground))
Emitter Voltage with respect to Voltage Gain
Go Emitter Voltage = Collector Voltage/Voltage Gain
Total Voltage Gain of CS Amplifier
Go Voltage Gain = Load Voltage/Input Voltage
Load Voltage of CS Amplifier
Go Load Voltage = Voltage Gain*Input Voltage

13 Common Stage Amplifiers Gain Calculators

Overall Feedback Voltage Gain of Common-Collector Amplifier
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)
Overall Voltage Gain of Common-Emitter Amplifier
Go Feedback Voltage Gain = -MOSFET Primary Transconductance*(Input Resistance/(Input Resistance+Signal Resistance))*(1/Collector Resistance+1/Load Resistance+1/Finite Output Resistance)^-1
Overall Feedback Voltage Gain of Common-Source Amplifier
Go Feedback Voltage Gain = -MOSFET Primary Transconductance*(Input Resistance/(Input Resistance+Signal Resistance))*(1/Drain Resistance+1/Load Resistance+1/Finite Output Resistance)^-1
Overall Feedback Voltage Gain of Common-Emitter Amplifier
Go Feedback Voltage Gain = -Common Base Current Gain*Collector Resistance/Emitter Resistance*(Input Resistance/(Input Resistance+Signal Resistance))
Total Current Gain with respect to Voltage Gain
Go Common Base Current Gain = Overall Voltage Gain/(Collector Resistance/Emitter Resistance*(Input Resistance/(Input Resistance+Signal Resistance)))
Open-Circuit Voltage Gain of CS Amplifier
Go Open Circuit Voltage Gain = Finite Output Resistance/(Finite Output Resistance+1/MOSFET Primary Transconductance)
Negative Voltage Gain from Base to Collector
Go Negative Voltage Gain = -Common Base Current Gain*(Collector Resistance/Emitter Resistance)
Overall Voltage Gain of Source Follower
Go Overall Voltage Gain = Load Resistance/(Load Resistance+1/MOSFET Primary Transconductance)
Common Base Current Gain
Go Common Base Current Gain = (Voltage Gain*Emitter Resistance/Collector Resistance)
Current Gain of Controlled Source Transistor
Go Current Gain = 1/(1+1/(MOSFET Primary Transconductance*Resistance between Drain and Ground))
Emitter Voltage with respect to Voltage Gain
Go Emitter Voltage = Collector Voltage/Voltage Gain
Voltage Gain of Common-Base Amplifier
Go Voltage Gain = Collector Voltage/Emitter Voltage
Total Voltage Gain of CS Amplifier
Go Voltage Gain = Load Voltage/Input Voltage

Overall Voltage Gain of Source Follower Formula

Overall Voltage Gain = Load Resistance/(Load Resistance+1/MOSFET Primary Transconductance)
Gv = RL/(RL+1/gmp)

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 Gv 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 (RL) & MOSFET Primary Transconductance (gmp) 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 Gv = RL/(RL+1/gmp) 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 (RL) & MOSFET Primary Transconductance (gmp). 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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