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Crest Factor Formula

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The Crest Factor of an AC current waveform is the ratio of waveform's peak value to its RMS value. Check FAQs

CF = \frac{X peak}{X rms}

CF - Crest Factor?X_peak - Peak Value of Signal?X_rms - RMS Value of Signal?

Crest Factor Example

With values

With units

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Here is how the Crest Factor equation looks like with Values.

Here is how the Crest Factor equation looks like with Units.

Here is how the Crest Factor equation looks like.

3.913 = \frac{90}{23}

3.913 = \frac{90V}{23V}

3.913 = \frac{90}{23}

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Crest Factor Solution

Follow our step by step solution on how to calculate Crest Factor?

FIRST Step Consider the formula

CF = \frac{X peak}{X rms}

Next Step Substitute values of Variables

∴

CF = \frac{90V}{23V}

Next Step Prepare to Evaluate

∴

CF = \frac{90}{23}

Next Step Evaluate

∴

CF = 3.91304347826087

LAST Step Rounding Answer

∴

CF = 3.913

Crest Factor Formula Elements

Variables

Crest Factor

The Crest Factor of an AC current waveform is the ratio of waveform's peak value to its RMS value.

Symbol: CF

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Crest Factor

Peak Value of Signal

Peak Value of Signal is the maximum value attained by an alternating quantity during one cycle. It is also known as the maximum value or crest value.

Symbol: X_peak

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Peak Value of Signal

RMS Value of Signal

RMS Value of Signal is the root-mean-square value of a signal. For a digitized signal, it represents the average "power" of a signal.

Symbol: X_rms

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find RMS Value of Signal

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How to Evaluate Crest Factor?

Crest Factor evaluator uses Crest Factor = Peak Value of Signal/RMS Value of Signal to evaluate the Crest Factor, Crest Factor is the ratio of the peak voltage value that an average reading or root-mean-square voltmeter will accept without overloading to the full-scale value of the range being used for measurement. Crest Factor is denoted by CF symbol.

How to evaluate Crest Factor using this online evaluator? To use this online evaluator for Crest Factor, enter Peak Value of Signal (X_peak) & RMS Value of Signal (X_rms) and hit the calculate button.

FAQs on Crest Factor

What is the formula to find Crest Factor?

The formula of Crest Factor is expressed as Crest Factor = Peak Value of Signal/RMS Value of Signal. Here is an example- 3.913043 = 90/23.

How to calculate Crest Factor?

With Peak Value of Signal (X_peak) & RMS Value of Signal (X_rms) we can find Crest Factor using the formula - Crest Factor = Peak Value of Signal/RMS Value of Signal.

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Crest Factor Formula

Crest Factor Example

Crest Factor Solution

Crest Factor Formula Elements

Other formulas in Fundamentals of Analog Communications category

How to Evaluate Crest Factor?

FAQs on Crest Factor

Variable Name