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Output Current of Small Signal Formula

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The Output Current in a MOSFET refers to the current flowing through the drain terminal when a voltage is applied at the gate terminal. Check FAQs

i out = (g m \cdot V c) \cdot (\frac{R d}{R L + R d})

i_out - Output Current?g_m - Transconductance?V_c - Critical Voltage?R_d - Drain Resistance?R_L - Load Resistance?

Output Current of Small Signal Example

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Here is how the Output Current of Small Signal equation looks like with Values.

Here is how the Output Current of Small Signal equation looks like with Units.

Here is how the Output Current of Small Signal equation looks like.

5.4E-6 = (0.5 \cdot 0.284) \cdot (\frac{11}{0.28 + 11})

5.4E-6A = (0.5mS \cdot 0.284V) \cdot (\frac{11Ω}{0.28kΩ + 11Ω})

5.4E-6 = (0.5 \cdot 0.284) \cdot (\frac{11}{0.28 + 11})

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Output Current of Small Signal Solution

Follow our step by step solution on how to calculate Output Current of Small Signal?

FIRST Step Consider the formula

i out = (g m \cdot V c) \cdot (\frac{R d}{R L + R d})

Next Step Substitute values of Variables

∴

i out = (0.5mS \cdot 0.284V) \cdot (\frac{11Ω}{0.28kΩ + 11Ω})

Next Step Convert Units

∴

i out = (0.0005S \cdot 0.284V) \cdot (\frac{11Ω}{280Ω + 11Ω})

Next Step Prepare to Evaluate

∴

i out = (0.0005 \cdot 0.284) \cdot (\frac{11}{280 + 11})

Next Step Evaluate

∴

i out = 5.36769759450172E-06A

LAST Step Rounding Answer

∴

i out = 5.4E-6A

Output Current of Small Signal Formula Elements

Variables

Output Current

The Output Current in a MOSFET refers to the current flowing through the drain terminal when a voltage is applied at the gate terminal.

Symbol: i_out

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Output Current

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

Critical Voltage

Critical Voltage is the minimum phase to the neutral voltage which glows and appears all along the line conductor.

Symbol: V_c

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Critical Voltage

Drain Resistance

Drain Resistance is defined as the resistance opposing the flow of current through the drain of the transistor.

Symbol: R_d

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Drain Resistance

Load Resistance

Load resistance is the external resistance connected between the drain terminal of the MOSFET and the power supply voltage.

Symbol: R_L

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Load Resistance

Other formulas in Small Signal Analysis category

Go Transconductance Given Small Signal Parameters

g m = 2 \cdot K n \cdot (V gsq - V t)

Go Output Voltage of Small Signal P-Channel

V out = g m \cdot V sg \cdot (\frac{R out \cdot R d}{R d + R out})

Go Small-Signal Voltage Gain with respect to Drain Resistance

A v = (g m \cdot (\frac{R out \cdot R d}{R out + R d}))

Go Small Signal Output Voltage

V out = g m \cdot V sg \cdot R L

How to Evaluate Output Current of Small Signal?

Output Current of Small Signal evaluator uses Output Current = (Transconductance*Critical Voltage)*(Drain Resistance/(Load Resistance+Drain Resistance)) to evaluate the Output Current, The Output Current Of Small Signal formula is defined as the current flowing through the drain terminal when a voltage is applied at the gate terminal. Output Current is denoted by i_out symbol.

How to evaluate Output Current of Small Signal using this online evaluator? To use this online evaluator for Output Current of Small Signal, enter Transconductance (g_m), Critical Voltage (V_c), Drain Resistance (R_d) & Load Resistance (R_L) and hit the calculate button.

FAQs on Output Current of Small Signal

What is the formula to find Output Current of Small Signal?

The formula of Output Current of Small Signal is expressed as Output Current = (Transconductance*Critical Voltage)*(Drain Resistance/(Load Resistance+Drain Resistance)). Here is an example- 5.4E-6 = (0.0005*0.284)*(11/(280+11)).

How to calculate Output Current of Small Signal?

With Transconductance (g_m), Critical Voltage (V_c), Drain Resistance (R_d) & Load Resistance (R_L) we can find Output Current of Small Signal using the formula - Output Current = (Transconductance*Critical Voltage)*(Drain Resistance/(Load Resistance+Drain Resistance)).

Can the Output Current of Small Signal be negative?

No, the Output Current of Small Signal, measured in Electric Current cannot be negative.

Which unit is used to measure Output Current of Small Signal?

Output Current of Small Signal is usually measured using the Ampere[A] for Electric Current. Milliampere[A], Microampere[A], Centiampere[A] are the few other units in which Output Current of Small Signal can be measured.

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Output Current of Small Signal Formula

Output Current of Small Signal Example

Output Current of Small Signal Solution

Output Current of Small Signal Formula Elements

Other formulas in Small Signal Analysis category

How to Evaluate Output Current of Small Signal?

FAQs on Output Current of Small Signal

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