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Miller Capacitance of Mosfet Formula

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Miller Capacitance is the equivalent input capacitance of a MOSFET amplifier due to the Miller effect. Check FAQs

C in = C gd \cdot (A v + 1)

C_in - Miller Capacitance?C_gd - Gate-Drain Capacitance?A_v - Voltage Gain?

Miller Capacitance of Mosfet Example

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Here is how the Miller Capacitance of Mosfet equation looks like with Values.

Here is how the Miller Capacitance of Mosfet equation looks like with Units.

Here is how the Miller Capacitance of Mosfet equation looks like.

7.182 = 7 \cdot (0.026 + 1)

7.182μF = 7μF \cdot (0.026 + 1)

7.182 = 7 \cdot (0.026 + 1)

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Miller Capacitance of Mosfet Solution

Follow our step by step solution on how to calculate Miller Capacitance of Mosfet?

FIRST Step Consider the formula

C in = C gd \cdot (A v + 1)

Next Step Substitute values of Variables

∴

C in = 7μF \cdot (0.026 + 1)

Next Step Convert Units

∴

C in = 7E-6F \cdot (0.026 + 1)

Next Step Prepare to Evaluate

∴

C in = 7E-6 \cdot (0.026 + 1)

Next Step Evaluate

∴

C in = 7.182E-06F

LAST Step Convert to Output's Unit

∴

C in = 7.182μF

Miller Capacitance of Mosfet Formula Elements

Variables

Miller Capacitance

Miller Capacitance is the equivalent input capacitance of a MOSFET amplifier due to the Miller effect.

Symbol: C_in

Measurement: CapacitanceUnit: μF

Note: Value should be greater than 0.

Formulas to find Miller Capacitance

Gate-Drain Capacitance

Gate-drain capacitance is a parasitic capacitance that exists between the gate and drain electrodes of a field-effect transistor (FET).

Symbol: C_gd

Measurement: CapacitanceUnit: μF

Note: Value should be greater than 0.

Formulas to find Gate-Drain Capacitance

Voltage Gain

Voltage gain is a measure of the amplification of an electrical signal by an amplifier . It is the ratio of the output voltage to the input voltage of the circuit, expressed in decibels (dB).

Symbol: A_v

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Voltage Gain

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 Miller Capacitance of Mosfet?

Miller Capacitance of Mosfet evaluator uses Miller Capacitance = Gate-Drain Capacitance*(Voltage Gain+1) to evaluate the Miller Capacitance, The Miller Capacitance of Mosfet formula is defined as equivalent input capacitance of a MOSFET amplifier due to the Miller effect. The Miller effect is a parasitic capacitance that occurs between the input and output of an amplifier due to feedback. Miller Capacitance is denoted by C_in symbol.

How to evaluate Miller Capacitance of Mosfet using this online evaluator? To use this online evaluator for Miller Capacitance of Mosfet, enter Gate-Drain Capacitance (C_gd) & Voltage Gain (A_v) and hit the calculate button.

FAQs on Miller Capacitance of Mosfet

What is the formula to find Miller Capacitance of Mosfet?

The formula of Miller Capacitance of Mosfet is expressed as Miller Capacitance = Gate-Drain Capacitance*(Voltage Gain+1). Here is an example- 7.2E+6 = 7E-06*(0.026+1).

How to calculate Miller Capacitance of Mosfet?

With Gate-Drain Capacitance (C_gd) & Voltage Gain (A_v) we can find Miller Capacitance of Mosfet using the formula - Miller Capacitance = Gate-Drain Capacitance*(Voltage Gain+1).

Can the Miller Capacitance of Mosfet be negative?

No, the Miller Capacitance of Mosfet, measured in Capacitance cannot be negative.

Which unit is used to measure Miller Capacitance of Mosfet?

Miller Capacitance of Mosfet is usually measured using the Microfarad[μF] for Capacitance. Farad[μF], Kilofarad[μF], Millifarad[μF] are the few other units in which Miller Capacitance of Mosfet can be measured.

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Miller Capacitance of Mosfet Formula

Miller Capacitance of Mosfet Example

Miller Capacitance of Mosfet Solution

Miller Capacitance of Mosfet Formula Elements

Other formulas in Internal Capacitive Effects and High Frequency Model category

How to Evaluate Miller Capacitance of Mosfet?

FAQs on Miller Capacitance of Mosfet

Variable Name