Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Calculator

✖Total current is a term used in electrical engineering and physics to refer to the sum of all the electric currents flowing through a particular point in a circuit or conductor.ⓘ Total Current [I_t]			+10% -10%
✖A common mode input signal is a type of electrical signal that appears equally on both input terminals of a differential amplifier.ⓘ Common Mode Input Signal [V_cin]			+10% -10%
✖Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output.ⓘ Output Resistance [R_out]			+10% -10%

✖Transconductance is defined as the ratio of the change in the output current to the change in the input voltage, with the gate-source voltage held constant.ⓘ Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance [g_m]

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Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Transconductance = Total Current/(Common Mode Input Signal-(2*Total Current*Output Resistance))
g_m = I_t/(V_cin-(2*I_t*R_out))
This formula uses 4 Variables

Variables Used

Transconductance - (Measured in Siemens) - Transconductance is defined as the ratio of the change in the output current to the change in the input voltage, with the gate-source voltage held constant.
Total Current - (Measured in Ampere) - Total current is a term used in electrical engineering and physics to refer to the sum of all the electric currents flowing through a particular point in a circuit or conductor.
Common Mode Input Signal - (Measured in Volt) - A common mode input signal is a type of electrical signal that appears equally on both input terminals of a differential amplifier.
Output Resistance - (Measured in Ohm) - Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output.

STEP 1: Convert Input(s) to Base Unit

Total Current: 7.7 Milliampere --> 0.0077 Ampere (Check conversion here)
Common Mode Input Signal: 84.7 Volt --> 84.7 Volt No Conversion Required
Output Resistance: 4.5 Kilohm --> 4500 Ohm (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

g_m = I_t/(V_cin-(2*I_t*R_out)) --> 0.0077/(84.7-(2*0.0077*4500))

Evaluating ... ...

g_m = 0.0005

STEP 3: Convert Result to Output's Unit

0.0005 Siemens -->0.5 Millisiemens (Check conversion here)

FINAL ANSWER

0.5 Millisiemens <-- Transconductance

(Calculation completed in 00.020 seconds)

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< Voltage Calculators

Output Voltage at Drain Q1 of MOSFET given Common-Mode Signal

LaTeX Go Drain Voltage Q1 = -Output Resistance*(Transconductance*Common Mode Input Signal)/(1+(2*Transconductance*Output Resistance))

Output Voltage at Drain Q2 of MOSFET given Common-Mode Signal

LaTeX Go Drain Voltage Q2 = -(Output Resistance/((1/Transconductance)+2*Output Resistance))*Common Mode Input Signal

Output Voltage at Drain Q1 of MOSFET

LaTeX Go Drain Voltage Q1 = -(Output Resistance*Total Current)

Output Voltage at Drain Q2 of MOSFET

LaTeX Go Drain Voltage Q2 = -(Output Resistance*Total Current)

Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Formula

LaTeX Go

Transconductance = Total Current/(Common Mode Input Signal-(2*Total Current*Output Resistance))
g_m = I_t/(V_cin-(2*I_t*R_out))

How MOSFET acts as an amplifier?

A small change in gate voltage produces a large change in drain current as in JFET. This fact makes MOSFET capable of raising the strength of a weak signal; thus acting as an amplifier. During the positive half-cycle of the signal, the positive voltage on the gate increases and produces the enhancement-mode.

How to Calculate Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance?

Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance calculator uses Transconductance = Total Current/(Common Mode Input Signal-(2*Total Current*Output Resistance)) to calculate the Transconductance, The Overdrive voltage when MOSFET acts as amplifier with load resistance is the excess of the voltage of oxide over threshold voltage and is the quantity that determines the charge in the channel. Transconductance is denoted by g_m symbol.

How to calculate Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance using this online calculator? To use this online calculator for Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance, enter Total Current (I_t), Common Mode Input Signal (V_cin) & Output Resistance (R_out) and hit the calculate button. Here is how the Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance calculation can be explained with given input values -> 500 = 0.0077/(84.7-(2*0.0077*4500)).

FAQ

What is Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance?

The Overdrive voltage when MOSFET acts as amplifier with load resistance is the excess of the voltage of oxide over threshold voltage and is the quantity that determines the charge in the channel and is represented as g_m = I_t/(V_cin-(2*I_t*R_out)) or Transconductance = Total Current/(Common Mode Input Signal-(2*Total Current*Output Resistance)). Total current is a term used in electrical engineering and physics to refer to the sum of all the electric currents flowing through a particular point in a circuit or conductor, A common mode input signal is a type of electrical signal that appears equally on both input terminals of a differential amplifier & Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output.

How to calculate Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance?

The Overdrive voltage when MOSFET acts as amplifier with load resistance is the excess of the voltage of oxide over threshold voltage and is the quantity that determines the charge in the channel is calculated using Transconductance = Total Current/(Common Mode Input Signal-(2*Total Current*Output Resistance)). To calculate Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance, you need Total Current (I_t), Common Mode Input Signal (V_cin) & Output Resistance (R_out). With our tool, you need to enter the respective value for Total Current, Common Mode Input Signal & Output Resistance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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