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Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Formula

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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. Check FAQs

g m = \frac{I t}{V cin - (2 \cdot I t \cdot R out)}

g_m - Transconductance?I_t - Total Current?V_cin - Common Mode Input Signal?R_out - Output Resistance?

Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Example

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Here is how the Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance equation looks like with Values.

Here is how the Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance equation looks like with Units.

Here is how the Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance equation looks like.

0.5 = \frac{7.7}{84.7 - (2 \cdot 7.7 \cdot 4.5)}

0.5mS = \frac{7.7mA}{84.7V - (2 \cdot 7.7mA \cdot 4.5kΩ)}

0.5 = \frac{7.7}{84.7 - (2 \cdot 7.7 \cdot 4.5)}

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Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Solution

Follow our step by step solution on how to calculate Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance?

FIRST Step Consider the formula

g m = \frac{I t}{V cin - (2 \cdot I t \cdot R out)}

Next Step Substitute values of Variables

∴

g m = \frac{7.7mA}{84.7V - (2 \cdot 7.7mA \cdot 4.5kΩ)}

Next Step Convert Units

∴

g m = \frac{0.0077A}{84.7V - (2 \cdot 0.0077A \cdot 4500Ω)}

Next Step Prepare to Evaluate

∴

g m = \frac{0.0077}{84.7 - (2 \cdot 0.0077 \cdot 4500)}

Next Step Evaluate

∴

g m = 0.0005S

LAST Step Convert to Output's Unit

∴

g m = 0.5mS

Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Formula Elements

Variables

Transconductance

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.

Symbol: g_m

Measurement: Electric ConductanceUnit: mS

Note: Value can be positive or negative.

Formulas to find Transconductance

Total Current

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.

Symbol: I_t

Measurement: Electric CurrentUnit: mA

Note: Value can be positive or negative.

Formulas to find Total Current

Common Mode Input Signal

A common mode input signal is a type of electrical signal that appears equally on both input terminals of a differential amplifier.

Symbol: V_cin

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Common Mode Input Signal

Output Resistance

Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output.

Symbol: R_out

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Output Resistance

Other formulas in Voltage category

Go Output Voltage at Drain Q1 of MOSFET

v o1 = - (R out \cdot I t)

Go Output Voltage at Drain Q2 of MOSFET

v o2 = - (R out \cdot I t)

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

v o1 = - R out \cdot \frac{g m \cdot V cin}{1 + (2 \cdot g m \cdot R out)}

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

v o2 = - (\frac{R out}{(\frac{1}{g m}) + 2 \cdot R out}) \cdot V cin

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

Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance evaluator uses Transconductance = Total Current/(Common Mode Input Signal-(2*Total Current*Output Resistance)) to evaluate 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 evaluate Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance using this online evaluator? To use this online evaluator 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.

FAQs on Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance

What is the formula to find Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance?

The formula of Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance is expressed as Transconductance = Total Current/(Common Mode Input Signal-(2*Total Current*Output Resistance)). Here is an example- 500 = 0.0077/(84.7-(2*0.0077*4500)).

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

With Total Current (I_t), Common Mode Input Signal (V_cin) & Output Resistance (R_out) we can find Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance using the formula - Transconductance = Total Current/(Common Mode Input Signal-(2*Total Current*Output Resistance)).

Can the Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance be negative?

Yes, the Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance, measured in Electric Conductance can be negative.

Which unit is used to measure Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance?

Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance is usually measured using the Millisiemens[mS] for Electric Conductance. Siemens[mS], Megasiemens[mS], Mho[mS] are the few other units in which Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance can be measured.

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Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Formula

Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Example

Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Solution

Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance Formula Elements

Other formulas in Voltage category

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

FAQs on Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance

Variable Name