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Critical Frequency of Mosfet Formula

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Critical Frequency in decibles of a MOSFET is the frequency at which the Miller capacitance of the MOSFET begins to dominate the circuit performance. Check FAQs

A p(dB) = 10 \cdot \log 10 (A p)

A_p(dB) - Critical Frequency in decibles?A_p - Critical Frequency?

Critical Frequency of Mosfet Example

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Here is how the Critical Frequency of Mosfet equation looks like with Values.

Here is how the Critical Frequency of Mosfet equation looks like with Units.

Here is how the Critical Frequency of Mosfet equation looks like.

6.0206 = 10 \cdot \log 10 (4)

6.0206Hz = 10 \cdot \log 10 (4Hz)

6.0206 = 10 \cdot \log 10 (4)

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Critical Frequency of Mosfet Solution

Follow our step by step solution on how to calculate Critical Frequency of Mosfet?

FIRST Step Consider the formula

A p(dB) = 10 \cdot \log 10 (A p)

Next Step Substitute values of Variables

∴

A p(dB) = 10 \cdot \log 10 (4Hz)

Next Step Prepare to Evaluate

∴

A p(dB) = 10 \cdot \log 10 (4)

Next Step Evaluate

∴

A p(dB) = 6.02059991327962Hz

LAST Step Rounding Answer

∴

A p(dB) = 6.0206Hz

Critical Frequency of Mosfet Formula Elements

Variables

Functions

Critical Frequency in decibles

Critical Frequency in decibles of a MOSFET is the frequency at which the Miller capacitance of the MOSFET begins to dominate the circuit performance.

Symbol: A_p(dB)

Measurement: FrequencyUnit: Hz

Note: Value should be greater than 0.

Formulas to find Critical Frequency in decibles

Critical Frequency

Critical Frequency of a MOSFET is the frequency at which the Miller capacitance of the MOSFET begins to dominate the circuit performance.

Symbol: A_p

Measurement: FrequencyUnit: Hz

Note: Value should be greater than 0.

Formulas to find Critical Frequency

log10

The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function.

Syntax: log10(Number)

Other formulas in Internal Capacitive Effects and High Frequency Model category

Go Gate to Source Channel Width of MOSFET

W c = \frac{C oc}{C ox \cdot L ov}

Go Overlap Capacitance of MOSFET

C oc = W c \cdot C ox \cdot L ov

Go Total Capacitance between Gate and Channel of MOSFETs

C g = C ox \cdot W c \cdot L

Go Transition Frequency of MOSFET

f t = \frac{g m}{2 \cdot π \cdot (C sg + C gd)}

How to Evaluate Critical Frequency of Mosfet?

Critical Frequency of Mosfet evaluator uses Critical Frequency in decibles = 10*log10(Critical Frequency) to evaluate the Critical Frequency in decibles, The Critical Frequency of Mosfet formula is defined as an important parameter for high-frequency MOSFET circuits. If the operating frequency of the circuit is above the critical frequency, the Miller capacitance will cause the gain of the circuit to decrease and the bandwidth of the circuit to narrow. Critical Frequency in decibles is denoted by A_p(dB) symbol.

How to evaluate Critical Frequency of Mosfet using this online evaluator? To use this online evaluator for Critical Frequency of Mosfet, enter Critical Frequency (A_p) and hit the calculate button.

FAQs on Critical Frequency of Mosfet

What is the formula to find Critical Frequency of Mosfet?

The formula of Critical Frequency of Mosfet is expressed as Critical Frequency in decibles = 10*log10(Critical Frequency). Here is an example- 6.0206 = 10*log10(4).

How to calculate Critical Frequency of Mosfet?

With Critical Frequency (A_p) we can find Critical Frequency of Mosfet using the formula - Critical Frequency in decibles = 10*log10(Critical Frequency). This formula also uses Common Logarithm (log10) function(s).

Can the Critical Frequency of Mosfet be negative?

No, the Critical Frequency of Mosfet, measured in Frequency cannot be negative.

Which unit is used to measure Critical Frequency of Mosfet?

Critical Frequency of Mosfet is usually measured using the Hertz[Hz] for Frequency. Petahertz[Hz], Terahertz[Hz], Gigahertz[Hz] are the few other units in which Critical Frequency of Mosfet can be measured.

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