Transition Frequency of MOSFET Calculator

✖Transconductance is defined as the ratio of the change in the output current to the change in the input voltage, with the gate-source voltage held constant.ⓘ Transconductance [g_m]			+10% -10%
✖The source gate capacitance is a measure of the capacitance between the source and gate electrodes in a field-effect transistor (FET).ⓘ Source Gate Capacitance [C_sg]			+10% -10%
✖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%

✖The Transition frequency is a term that describes the rate or frequency at which a change or transition occurs from one state to another.ⓘ Transition Frequency of MOSFET [f_t]

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Transition Frequency of MOSFET Solution

STEP 0: Pre-Calculation Summary

Formula Used

Transition Frequency = Transconductance/(2*pi*(Source Gate Capacitance+Gate-Drain Capacitance))
f_t = g_m/(2*pi*(C_sg+C_gd))
This formula uses 1 Constants, 4 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Transition Frequency - (Measured in Hertz) - The Transition frequency is a term that describes the rate or frequency at which a change or transition occurs from one state to another.
Transconductance - (Measured in Siemens) - Transconductance is defined as the ratio of the change in the output current to the change in the input voltage, with the gate-source voltage held constant.
Source Gate Capacitance - (Measured in Farad) - The source gate capacitance is a measure of the capacitance between the source and gate electrodes in a field-effect transistor (FET).
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).

STEP 1: Convert Input(s) to Base Unit

Transconductance: 0.5 Millisiemens --> 0.0005 Siemens (Check conversion here)
Source Gate Capacitance: 8.16 Microfarad --> 8.16E-06 Farad (Check conversion here)
Gate-Drain Capacitance: 7 Microfarad --> 7E-06 Farad (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f_t = g_m/(2*pi*(C_sg+C_gd)) --> 0.0005/(2*pi*(8.16E-06+7E-06))

Evaluating ... ...

f_t = 5.24917358482504

STEP 3: Convert Result to Output's Unit

5.24917358482504 Hertz --> No Conversion Required

FINAL ANSWER

5.24917358482504 ≈ 5.249174 Hertz <-- Transition Frequency

(Calculation completed in 00.004 seconds)

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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National Institute Of Technology (NIT), Hamirpur

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< Internal Capacitive Effects and High Frequency Model Calculators

Transition Frequency of MOSFET

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

Total Capacitance between Gate and Channel of MOSFETs

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

Gate to Source Channel Width of MOSFET

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

Overlap Capacitance of MOSFET

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

< MOSFET Characterstics Calculators

Voltage Gain given Load Resistance of MOSFET

LaTeX Go Voltage Gain = Transconductance*(1/(1/Load Resistance+1/Output Resistance))/(1+Transconductance*Source Resistance)

Maximum Voltage Gain at Bias Point

LaTeX Go Maximum Voltage Gain = 2*(Supply Voltage-Effective Voltage)/(Effective Voltage)

Voltage Gain given Drain Voltage

LaTeX Go Voltage Gain = (Drain Current*Load Resistance*2)/Effective Voltage

Maximum Voltage Gain given all Voltages

LaTeX Go Maximum Voltage Gain = (Supply Voltage-0.3)/Thermal Voltage

Transition Frequency of MOSFET Formula

LaTeX Go

Transition Frequency = Transconductance/(2*pi*(Source Gate Capacitance+Gate-Drain Capacitance))
f_t = g_m/(2*pi*(C_sg+C_gd))

Why MOSFET is used for high frequency application?

MOSFETs can operate at high frequencies, they can perform fast switching applications with little turn-off losses. When compared to the IGBT, a power MOSFET has the advantages of higher commutation speed and greater efficiency during operation at low voltages.

How to Calculate Transition Frequency of MOSFET?

Transition Frequency of MOSFET calculator uses Transition Frequency = Transconductance/(2*pi*(Source Gate Capacitance+Gate-Drain Capacitance)) to calculate the Transition Frequency, The Transition frequency of MOSFET formula is defined as a measure of the high-frequency operating characteristics of a transistor. The frequency of the radiation associated with a transition between hyperfine structure energy states of an atom. Transition Frequency is denoted by f_t symbol.

How to calculate Transition Frequency of MOSFET using this online calculator? To use this online calculator for Transition Frequency of MOSFET, enter Transconductance (g_m), Source Gate Capacitance (C_sg) & Gate-Drain Capacitance (C_gd) and hit the calculate button. Here is how the Transition Frequency of MOSFET calculation can be explained with given input values -> 5.249174 = 0.0005/(2*pi*(8.16E-06+7E-06)).

FAQ

What is Transition Frequency of MOSFET?

The Transition frequency of MOSFET formula is defined as a measure of the high-frequency operating characteristics of a transistor. The frequency of the radiation associated with a transition between hyperfine structure energy states of an atom and is represented as f_t = g_m/(2*pi*(C_sg+C_gd)) or Transition Frequency = Transconductance/(2*pi*(Source Gate Capacitance+Gate-Drain Capacitance)). Transconductance is defined as the ratio of the change in the output current to the change in the input voltage, with the gate-source voltage held constant, The source gate capacitance is a measure of the capacitance between the source and gate electrodes in a field-effect transistor (FET) & Gate-drain capacitance is a parasitic capacitance that exists between the gate and drain electrodes of a field-effect transistor (FET).

How to calculate Transition Frequency of MOSFET?

The Transition frequency of MOSFET formula is defined as a measure of the high-frequency operating characteristics of a transistor. The frequency of the radiation associated with a transition between hyperfine structure energy states of an atom is calculated using Transition Frequency = Transconductance/(2*pi*(Source Gate Capacitance+Gate-Drain Capacitance)). To calculate Transition Frequency of MOSFET, you need Transconductance (g_m), Source Gate Capacitance (C_sg) & Gate-Drain Capacitance (C_gd). With our tool, you need to enter the respective value for Transconductance, Source Gate Capacitance & Gate-Drain Capacitance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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