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Small Signal Output Voltage Formula

GoOutput Voltage of Small Signal P-Channel Formula

GoCommon Drain Output Voltage in Small Signal Formula

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Output voltage is the electrical potential difference that is delivered to a load by a power supply and it plays a critical role in determining the performance and reliability of electronic systems. Check FAQs

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

V_out - Output Voltage?g_m - Transconductance?V_sg - Source to Gate Voltage?R_L - Load Resistance?

Small Signal Output Voltage Example

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

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

Here is how the Small Signal Output Voltage equation looks like.

2.8 = 0.5 \cdot 20 \cdot 0.28

2.8V = 0.5mS \cdot 20V \cdot 0.28kΩ

2.8 = 0.5 \cdot 20 \cdot 0.28

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Small Signal Output Voltage Solution

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

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

V out = 0.5mS \cdot 20V \cdot 0.28kΩ

Next Step Convert Units

∴

V out = 0.0005S \cdot 20V \cdot 280Ω

Next Step Prepare to Evaluate

∴

V out = 0.0005 \cdot 20 \cdot 280

LAST Step Evaluate

∴

V out = 2.8V

Small Signal Output Voltage Formula Elements

Variables

Output Voltage

Output voltage is the electrical potential difference that is delivered to a load by a power supply and it plays a critical role in determining the performance and reliability of electronic systems.

Symbol: V_out

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Output Voltage

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

Source to Gate Voltage

The Source to Gate Voltage is the potential difference between the source and gate of the transistor.

Symbol: V_sg

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Source to Gate Voltage

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 to find Output Voltage

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 Common Drain Output Voltage in Small Signal

V out = g m \cdot V c \cdot (\frac{R s \cdot r o}{R s + r o})

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 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 Gate to Source Voltage with respect to Small Signal Resistance

V c = V in \cdot (\frac{\frac{1}{g m}}{(\frac{1}{g m}) \cdot (\frac{R s \cdot r o}{R s + r o})})

Go Small Signal Voltage Gain with respect to Input Resistance

A v = (\frac{R in}{R in + R si}) \cdot \frac{\frac{R s \cdot R out}{R s + R out}}{\frac{1}{g m} + (\frac{R s \cdot R out}{R s + R out})}

How to Evaluate Small Signal Output Voltage?

Small Signal Output Voltage evaluator uses Output Voltage = Transconductance*Source to Gate Voltage*Load Resistance to evaluate the Output Voltage, Small Signal Output Voltage refers to the voltage output of a circuit or device when it is operating with a small signal or low power input.It is used to quantify the maximum voltage output of a circuit before it begins to saturate or become non-linear. Output Voltage is denoted by V_out symbol.

How to evaluate Small Signal Output Voltage using this online evaluator? To use this online evaluator for Small Signal Output Voltage, enter Transconductance (g_m), Source to Gate Voltage (V_sg) & Load Resistance (R_L) and hit the calculate button.

FAQs on Small Signal Output Voltage

What is the formula to find Small Signal Output Voltage?

The formula of Small Signal Output Voltage is expressed as Output Voltage = Transconductance*Source to Gate Voltage*Load Resistance. Here is an example- 2.8 = 0.0005*20*280.

How to calculate Small Signal Output Voltage?

With Transconductance (g_m), Source to Gate Voltage (V_sg) & Load Resistance (R_L) we can find Small Signal Output Voltage using the formula - Output Voltage = Transconductance*Source to Gate Voltage*Load Resistance.

What are the other ways to Calculate Output Voltage?

Here are the different ways to Calculate Output Voltage-

Output Voltage=Transconductance*Source to Gate Voltage*((Output Resistance*Drain Resistance)/(Drain Resistance+Output Resistance))
Output Voltage=Transconductance*Critical Voltage*((Source Resistance*Small Signal Resistance)/(Source Resistance+Small Signal Resistance))

Can the Small Signal Output Voltage be negative?

Yes, the Small Signal Output Voltage, measured in Electric Potential can be negative.

Which unit is used to measure Small Signal Output Voltage?

Small Signal Output Voltage is usually measured using the Volt[V] for Electric Potential. Millivolt[V], Microvolt[V], Nanovolt[V] are the few other units in which Small Signal Output Voltage can be measured.

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