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Amplifier Power Efficiency Formula

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Power Efficiency Percentage is used to calculate the efficiency of the amplifier to minimize the power loss. Check FAQs

%η p = 100 \cdot (\frac{P L}{P in})

%η_p - Power Efficiency Percentage?P_L - Load Power?P_in - Input Power?

Amplifier Power Efficiency Example

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Here is how the Amplifier Power Efficiency equation looks like with Values.

Here is how the Amplifier Power Efficiency equation looks like with Units.

Here is how the Amplifier Power Efficiency equation looks like.

88.3333 = 100 \cdot (\frac{7.95}{9})

88.3333 = 100 \cdot (\frac{7.95W}{9W})

88.3333 = 100 \cdot (\frac{7.95}{9})

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Amplifier Power Efficiency Solution

Follow our step by step solution on how to calculate Amplifier Power Efficiency?

FIRST Step Consider the formula

%η p = 100 \cdot (\frac{P L}{P in})

Next Step Substitute values of Variables

∴

%η p = 100 \cdot (\frac{7.95W}{9W})

Next Step Prepare to Evaluate

∴

%η p = 100 \cdot (\frac{7.95}{9})

Next Step Evaluate

∴

%η p = 88.3333333333333

LAST Step Rounding Answer

∴

%η p = 88.3333

Amplifier Power Efficiency Formula Elements

Variables

Power Efficiency Percentage

Power Efficiency Percentage is used to calculate the efficiency of the amplifier to minimize the power loss.

Symbol: %η_p

Measurement: NAUnit: Unitless

Note: Value should be less than 100.

Formulas to find Power Efficiency Percentage

Load Power

Load Power is the power delivered to load in the circuit.

Symbol: P_L

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Load Power

Input Power

Input Power is defined as the power supplied to the transistor circuit at the supply terminal by the source.

Symbol: P_in

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Input Power

Other formulas in Amplifier Characteristics category

Go Power Gain of Amplifier

A p = \frac{P L}{P in}

Go Current Gain of Amplifier

A i = \frac{I o}{i in}

Go Base Junction Width of Amplifier

w b = \frac{A be \cdot [Charge-e] \cdot D n \cdot n po}{i sat}

Go Differential Voltage in Amplifier

V id = \frac{V o}{(\frac{R 4}{R 3}) \cdot (1 + \frac{R 2}{R 1})}

How to Evaluate Amplifier Power Efficiency?

Amplifier Power Efficiency evaluator uses Power Efficiency Percentage = 100*(Load Power/Input Power) to evaluate the Power Efficiency Percentage, The Amplifier Power Efficiency formula is an important performance parameter of an amplifier as it helps to keep track of the power loss in an amplifier and hence helps in improving its performance by minimizing the loss. Power Efficiency Percentage is denoted by %η_p symbol.

How to evaluate Amplifier Power Efficiency using this online evaluator? To use this online evaluator for Amplifier Power Efficiency, enter Load Power (P_L) & Input Power (P_in) and hit the calculate button.

FAQs on Amplifier Power Efficiency

What is the formula to find Amplifier Power Efficiency?

The formula of Amplifier Power Efficiency is expressed as Power Efficiency Percentage = 100*(Load Power/Input Power). Here is an example- 88.33333 = 100*(7.95/9).

How to calculate Amplifier Power Efficiency?

With Load Power (P_L) & Input Power (P_in) we can find Amplifier Power Efficiency using the formula - Power Efficiency Percentage = 100*(Load Power/Input Power).

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