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Efficiency of Class A Formula

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

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

η - Efficiency of Class A?V_out - Output Voltage?V_drain - Drain Voltage?

Efficiency of Class A Example

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Here is how the Efficiency of Class A equation looks like with Values.

Here is how the Efficiency of Class A equation looks like with Units.

Here is how the Efficiency of Class A equation looks like.

0.8571 = \frac{1}{2} \cdot (\frac{1.2}{0.7})

0.8571 = \frac{1}{2} \cdot (\frac{1.2V}{0.7V})

0.8571 = \frac{1}{2} \cdot (\frac{1.2}{0.7})

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Efficiency of Class A Solution

Follow our step by step solution on how to calculate Efficiency of Class A?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

η = \frac{1}{2} \cdot (\frac{1.2V}{0.7V})

Next Step Prepare to Evaluate

∴

η = \frac{1}{2} \cdot (\frac{1.2}{0.7})

Next Step Evaluate

∴

η = 0.857142857142857

LAST Step Rounding Answer

∴

η = 0.8571

Efficiency of Class A Formula Elements

Variables

Efficiency of Class A

Efficiency of Class A is the ratio of the output voltage to the input voltage of a class A output stage amplifier.

Symbol: η

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Efficiency of Class A

Output Voltage

Output Voltage is the voltage released by a device, such as a voltage regulator or a generator.

Symbol: V_out

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Output Voltage

Drain Voltage

Drain Voltage refers that the supply voltage pin is connected to the drain of the transistor.

Symbol: V_drain

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Drain Voltage

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 B Output Stage

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

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 A?

Efficiency of Class A evaluator uses Efficiency of Class A = 1/2*(Output Voltage/Drain Voltage) to evaluate the Efficiency of Class A, Efficiency of Class A is the ratio of the output voltage to the input voltage of a class A output stage amplifier. Efficiency of Class A is denoted by η symbol.

How to evaluate Efficiency of Class A using this online evaluator? To use this online evaluator for Efficiency of Class A, enter Output Voltage (V_out) & Drain Voltage (V_drain) and hit the calculate button.

FAQs on Efficiency of Class A

What is the formula to find Efficiency of Class A?

The formula of Efficiency of Class A is expressed as Efficiency of Class A = 1/2*(Output Voltage/Drain Voltage). Here is an example- 0.857143 = 1/2*(1.2/0.7).

How to calculate Efficiency of Class A?

With Output Voltage (V_out) & Drain Voltage (V_drain) we can find Efficiency of Class A using the formula - Efficiency of Class A = 1/2*(Output Voltage/Drain Voltage).

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