Miller Capacitance of Mosfet Calculator

✖Gate-drain capacitance is a parasitic capacitance that exists between the gate and drain electrodes of a field-effect transistor (FET).ⓘ Gate-Drain Capacitance [C_gd]			+10% -10%
✖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).ⓘ Voltage Gain [A_v]			+10% -10%

✖Miller Capacitance is the equivalent input capacitance of a MOSFET amplifier due to the Miller effect.ⓘ Miller Capacitance of Mosfet [C_in]

⎘ Copy

👎

Formula

✖

Miller Capacitance of Mosfet

Formula

`"C"_{"in"} = "C"_{"gd"}*("A"_{"v"}+1)`

Example

`"7.182μF"="7μF"*("0.026"+1)`

Calculator

LaTeX

Reset

👍

Download MOSFET Formula PDF PDF Image

Miller Capacitance of Mosfet Solution

STEP 0: Pre-Calculation Summary

Formula Used

Miller Capacitance = Gate-Drain Capacitance*(Voltage Gain+1)
C_in = C_gd*(A_v+1)
This formula uses 3 Variables

Variables Used

Miller Capacitance - (Measured in Farad) - Miller Capacitance is the equivalent input capacitance of a MOSFET amplifier due to the Miller effect.
Gate-Drain Capacitance - (Measured in Farad) - Gate-drain capacitance is a parasitic capacitance that exists between the gate and drain electrodes of a field-effect transistor (FET).
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).

STEP 1: Convert Input(s) to Base Unit

Gate-Drain Capacitance: 7 Microfarad --> 7E-06 Farad (Check conversion here)
Voltage Gain: 0.026 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

C_in = C_gd*(A_v+1) --> 7E-06*(0.026+1)

Evaluating ... ...

C_in = 7.182E-06

STEP 3: Convert Result to Output's Unit

7.182E-06 Farad -->7.182 Microfarad (Check conversion here)

FINAL ANSWER

7.182 Microfarad <-- Miller Capacitance

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electronics » MOSFET » Analog Electronics » Internal Capacitive Effects and High Frequency Model » Miller Capacitance of Mosfet

Credits

Created by Suma Madhuri

VIT University (VIT), Chennai

Suma Madhuri has created this Calculator and 50+ more calculators!

Verified by Ritwik Tripathi

Vellore Institute of Technology (VIT Vellore), Vellore

Ritwik Tripathi has verified this Calculator and 100+ more calculators!

< 15 Internal Capacitive Effects and High Frequency Model Calculators

Conductance of Channel of MOSFETs

Go Conductance of Channel = Mobility of Electrons at Surface of Channel*Oxide Capacitance*(Channel Width/Channel Length)*Voltage across Oxide

Transition Frequency of MOSFET

Go Transition Frequency = Transconductance/(2*pi*(Source Gate Capacitance+Gate-Drain Capacitance))

Magnitude of Electron Charge in Channel of MOSFET

Go Electron Charge in Channel = Oxide Capacitance*Channel Width*Channel Length*Effective Voltage

Lower Critical Frequency of Mosfet

Go Corner Frequency = 1/(2*pi*(Resistance+Input Resistance)*Capacitance)

Phase Shift in Output RC Circuit

Go Phase Shift = arctan(Capacitive Reactance/(Resistance+Load Resistance))

Output Miller Capacitance Mosfet

Go Output Miller Capacitance = Gate-Drain Capacitance*((Voltage Gain+1)/Voltage Gain)

Total Capacitance between Gate and Channel of MOSFETs

Go Gate Channel Capacitance = Oxide Capacitance*Channel Width*Channel Length

Gate to Source Channel Width of MOSFET

Go Channel Width = Overlap Capacitance/(Oxide Capacitance*Overlap Length)

Overlap Capacitance of MOSFET

Go Overlap Capacitance = Channel Width*Oxide Capacitance*Overlap Length

Critical Frequency in High Frequency Input RC Circuit

Go Corner Frequency = 1/(2*pi*Input Resistance*Miller Capacitance)

Phase Shift in Input RC Circuit

Go Phase Shift = arctan(Capacitive Reactance/Input Resistance)

Capacitive Reactance of Mosfet

Go Capacitive Reactance = 1/(2*pi*Frequency*Capacitance)

Critical Frequency of Mosfet

Go Critical Frequency in decibles = 10*log10(Critical Frequency)

Miller Capacitance of Mosfet

Go Miller Capacitance = Gate-Drain Capacitance*(Voltage Gain+1)

Attenuation of RC Circuit

Go Attenuation = Base Voltage/Input Voltage

Miller Capacitance of Mosfet Formula

Miller Capacitance = Gate-Drain Capacitance*(Voltage Gain+1)
C_in = C_gd*(A_v+1)

What factors affect the Miller capacitance of a MOSFET?

The Miller capacitance of a MOSFET is affected by the following factors:

Gate-drain capacitance : The gate-drain capacitance is a parasitic capacitance that exists between the gate and drain terminals of a MOSFET. It is caused by the overlap of the gate and drain regions. The higher the gate-drain capacitance, the higher the Miller capacitance.
Voltage gain : The voltage gain of a MOSFET amplifier is the ratio of the output voltage to the input voltage. The higher the voltage gain, the higher the Miller capacitance.

How to Calculate Miller Capacitance of Mosfet?

Miller Capacitance of Mosfet calculator uses Miller Capacitance = Gate-Drain Capacitance*(Voltage Gain+1) to calculate 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 calculate Miller Capacitance of Mosfet using this online calculator? To use this online calculator for Miller Capacitance of Mosfet, enter Gate-Drain Capacitance (C_gd) & Voltage Gain (A_v) and hit the calculate button. Here is how the Miller Capacitance of Mosfet calculation can be explained with given input values -> 7.2E+6 = 7E-06*(0.026+1).

FAQ

What is Miller Capacitance of Mosfet?

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 and is represented as C_in = C_gd*(A_v+1) or Miller Capacitance = Gate-Drain Capacitance*(Voltage Gain+1). Gate-drain capacitance is a parasitic capacitance that exists between the gate and drain electrodes of a field-effect transistor (FET) & 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).

How to calculate Miller Capacitance of Mosfet?

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 is calculated using Miller Capacitance = Gate-Drain Capacitance*(Voltage Gain+1). To calculate Miller Capacitance of Mosfet, you need Gate-Drain Capacitance (C_gd) & Voltage Gain (A_v). With our tool, you need to enter the respective value for Gate-Drain Capacitance & Voltage Gain and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search