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Efficiency of Class B Output Stage Formula

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Efficiency of Class B is the ratio of the output power/voltage to the input power/voltage of a class B output stage amplifier. Check FAQs

η a = \frac{π}{4} \cdot (\frac{Vˆ o}{V cc})

η_a - Efficiency of Class B?Vˆ_o - Peak Amplitude Voltage?V_cc - Supply Voltage?π - Archimedes' constant?

Efficiency of Class B Output Stage Example

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Here is how the Efficiency of Class B Output Stage equation looks like with Values.

Here is how the Efficiency of Class B Output Stage equation looks like with Units.

Here is how the Efficiency of Class B Output Stage equation looks like.

0.9922 = \frac{3.1416}{4} \cdot (\frac{9.5}{7.52})

0.9922 = \frac{3.1416}{4} \cdot (\frac{9.5V}{7.52V})

0.9922 = \frac{3.1416}{4} \cdot (\frac{9.5}{7.52})

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Efficiency of Class B Output Stage Solution

Follow our step by step solution on how to calculate Efficiency of Class B Output Stage?

FIRST Step Consider the formula

η a = \frac{π}{4} \cdot (\frac{Vˆ o}{V cc})

Next Step Substitute values of Variables

∴

η a = \frac{π}{4} \cdot (\frac{9.5V}{7.52V})

Next Step Substitute values of Constants

∴

η a = \frac{3.1416}{4} \cdot (\frac{9.5V}{7.52V})

Next Step Prepare to Evaluate

∴

η a = \frac{3.1416}{4} \cdot (\frac{9.5}{7.52})

Next Step Evaluate

∴

η a = 0.992191828760074

LAST Step Rounding Answer

∴

η a = 0.9922

Efficiency of Class B Output Stage Formula Elements

Variables

Constants

Efficiency of Class B

Efficiency of Class B is the ratio of the output power/voltage to the input power/voltage of a class B output stage amplifier.

Symbol: η_a

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Efficiency of Class B

Peak Amplitude Voltage

Peak amplitude Voltage is the change between peak (highest amplitude value) and trough (lowest amplitude value, which can be negative) in an op amp.

Symbol: Vˆ_o

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Peak Amplitude Voltage

Supply Voltage

Supply Voltage is also defined defined as the bias voltage applied to the op amp for Q2(transistor 2) pin. It is also defined as as voltage at collector.

Symbol: V_cc

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Supply Voltage

Archimedes' constant

Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.

Symbol: π

Value: 3.14159265358979323846264338327950288

Other formulas in Class B Output Stage category

Go Load Resistance of Class B Stage

R classB = \frac{2 \cdot Vˆ o \cdot V cc}{π \cdot P s}

Go Efficiency of Class A

η = \frac{1}{2} \cdot (\frac{V out}{V drain})

Go Maximum Average Power from Class B Output Stage

P maxB = \frac{1}{2} \cdot (\frac{{V cc}^{2}}{R L})

Go Maximum Power Dissipation in Class B Stage

P Dmax = \frac{2 \cdot {V cc}^{2}}{π^{2} \cdot R L}

How to Evaluate Efficiency of Class B Output Stage?

Efficiency of Class B Output Stage evaluator uses Efficiency of Class B = pi/4*(Peak Amplitude Voltage/Supply Voltage) to evaluate the Efficiency of Class B, The Efficiency of Class B Output Stage is defined as the ratio of the output power to the total input power, expressed as a decimal value between 0 and 1. It measures the portion of input power that is actually used to produce the output power, with the remaining power lost as heat or other forms of energy. Efficiency of Class B is denoted by η_a symbol.

How to evaluate Efficiency of Class B Output Stage using this online evaluator? To use this online evaluator for Efficiency of Class B Output Stage, enter Peak Amplitude Voltage (Vˆ_o) & Supply Voltage (V_cc) and hit the calculate button.

FAQs on Efficiency of Class B Output Stage

What is the formula to find Efficiency of Class B Output Stage?

The formula of Efficiency of Class B Output Stage is expressed as Efficiency of Class B = pi/4*(Peak Amplitude Voltage/Supply Voltage). Here is an example- 0.992192 = pi/4*(9.5/7.52).

How to calculate Efficiency of Class B Output Stage?

With Peak Amplitude Voltage (Vˆ_o) & Supply Voltage (V_cc) we can find Efficiency of Class B Output Stage using the formula - Efficiency of Class B = pi/4*(Peak Amplitude Voltage/Supply Voltage). This formula also uses Archimedes' constant .

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