Treshold Voltage of MOSFET Calculator

✖Gate-source voltage is a critical parameter that affects the operation of an FET, and it is often used to control the device's behavior.ⓘ Gate-Source Voltage [V_gs]			+10% -10%
✖The effective voltage in a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is the voltage that determines the behavior of the device. It is also known as the gate-source voltage.ⓘ Effective Voltage [V_eff]			+10% -10%

✖Threshold voltage, also known as the gate threshold voltage or simply Vth, is a critical parameter in the operation of field-effect transistors, which are fundamental components in modern electronics.ⓘ Treshold Voltage of MOSFET [V_th]

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Treshold Voltage of MOSFET

Formula

`"V"_{"th"} = "V"_{"gs"}-"V"_{"eff"}`

Example

`"2.3V"="4V"-"1.7V"`

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Treshold Voltage of MOSFET Solution

STEP 0: Pre-Calculation Summary

Formula Used

Threshold Voltage = Gate-Source Voltage-Effective Voltage
V_th = V_gs-V_eff
This formula uses 3 Variables

Variables Used

Threshold Voltage - (Measured in Volt) - Threshold voltage, also known as the gate threshold voltage or simply Vth, is a critical parameter in the operation of field-effect transistors, which are fundamental components in modern electronics.
Gate-Source Voltage - (Measured in Volt) - Gate-source voltage is a critical parameter that affects the operation of an FET, and it is often used to control the device's behavior.
Effective Voltage - (Measured in Volt) - The effective voltage in a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is the voltage that determines the behavior of the device. It is also known as the gate-source voltage.

STEP 1: Convert Input(s) to Base Unit

Gate-Source Voltage: 4 Volt --> 4 Volt No Conversion Required
Effective Voltage: 1.7 Volt --> 1.7 Volt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_th = V_gs-V_eff --> 4-1.7

Evaluating ... ...

V_th = 2.3

STEP 3: Convert Result to Output's Unit

2.3 Volt --> No Conversion Required

FINAL ANSWER

2.3 Volt <-- Threshold Voltage

(Calculation completed in 00.004 seconds)

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< 20 Voltage Calculators

Conductance of Channel of MOSFET using Gate to Source Voltage

Go Conductance of Channel = Mobility of Electrons at Surface of Channel*Oxide Capacitance*Channel Width/Channel Length*(Gate-Source Voltage-Threshold Voltage)

Common Gate Output Voltage

Go Output Voltage = -(Transconductance*Critical Voltage)*((Load Resistance*Gate Resistance)/(Gate Resistance+Load Resistance))

Output Voltage at Drain Q1 of MOSFET given Common-Mode Signal

Go Drain Voltage Q1 = -Output Resistance*(Transconductance*Common Mode Input Signal)/(1+(2*Transconductance*Output Resistance))

Voltage across Gate and Source of MOSFET on Operation with Differential Input Voltage

Go Gate-Source Voltage = Threshold Voltage+sqrt((2*DC Bias Current)/(Process Transconductance Parameter*Aspect Ratio))

Source Input Voltage

Go Source Input Voltage = Input Voltage*(Input Amplifier Resistance/(Input Amplifier Resistance+Equivalent Source Resistance))

Input Gate-to-Source Voltage

Go Critical Voltage = (Input Amplifier Resistance/(Input Amplifier Resistance+Equivalent Source Resistance))*Input Voltage

Output Voltage at Drain Q2 of MOSFET given Common-Mode Signal

Go Drain Voltage Q2 = -(Output Resistance/((1/Transconductance)+2*Output Resistance))*Common Mode Input Signal

Voltage across Gate and Source of MOSFET given Input Current

Go Gate-Source Voltage = Input Current/(Angular Frequency*(Source Gate Capacitance+Gate-Drain Capacitance))

Positive Voltage given Device Parameter in MOSFET

Go Input Current = Gate-Source Voltage*(Angular Frequency*(Source Gate Capacitance+Gate-Drain Capacitance))

Overdrive Voltage when MOSFET Acts as Amplifier with Load Resistance

Go Transconductance = Total Current/(Common Mode Input Signal-(2*Total Current*Output Resistance))

Incremental Voltage Signal of Differential Amplifier

Go Common Mode Input Signal = (Total Current/Transconductance)+(2*Total Current*Output Resistance)

Voltage at Drain Q1 of MOSFET

Go Output Voltage = -(Total Load Resistance of MOSFET/(2*Output Resistance))*Common Mode Input Signal

Voltage at Drain Q2 in MOSFET

Go Output Voltage = -(Total Load Resistance of MOSFET/(2*Output Resistance))*Common Mode Input Signal

Saturation Voltage of MOSFET

Go Drain and Source Saturation Voltage = Gate-Source Voltage-Threshold Voltage

Voltage across Gate to Source of MOSFET on Differential Input Voltage given Overdrive Voltage

Go Gate-Source Voltage = Threshold Voltage+1.4*Effective Voltage

Threshold Voltage when MOSFET Acts as Amplifier

Go Threshold Voltage = Gate-Source Voltage-Effective Voltage

Treshold Voltage of MOSFET

Go Threshold Voltage = Gate-Source Voltage-Effective Voltage

Overdrive Voltage

Go Overdrive Voltage = (2*Drain Current)/Transconductance

Output Voltage at Drain Q1 of MOSFET

Go Drain Voltage Q1 = -(Output Resistance*Total Current)

Output Voltage at Drain Q2 of MOSFET

Go Drain Voltage Q2 = -(Output Resistance*Total Current)

< 15 MOSFET Characterstics Calculators

Conductance of Channel of MOSFET using Gate to Source Voltage

Go Conductance of Channel = Mobility of Electrons at Surface of Channel*Oxide Capacitance*Channel Width/Channel Length*(Gate-Source Voltage-Threshold Voltage)

Voltage Gain given Load Resistance of MOSFET

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

Transition Frequency of MOSFET

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

Maximum Voltage Gain at Bias Point

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

Voltage Gain using Small Signal

Go Voltage Gain = Transconductance*1/(1/Load Resistance+1/Finite Resistance)

Gate to Source Channel Width of MOSFET

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

Voltage Gain given Drain Voltage

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

Body Effect on Transconductance

Go Body Transconductance = Change in Threshold to Base Voltage*Transconductance

Saturation Voltage of MOSFET

Go Drain and Source Saturation Voltage = Gate-Source Voltage-Threshold Voltage

Bias Voltage of MOSFET

Go Total Instantaneous Bias Voltage = DC Bias Voltage+DC Voltage

Maximum Voltage Gain given all Voltages

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

Amplification Factor in Small Signal MOSFET Model

Go Amplification Factor = Transconductance*Output Resistance

Treshold Voltage of MOSFET

Go Threshold Voltage = Gate-Source Voltage-Effective Voltage

Transconductance in MOSFET

Go Transconductance = (2*Drain Current)/Overdrive Voltage

Conductance in Linear Resistance of MOSFET

Go Conductance of Channel = 1/Linear Resistance

Treshold Voltage of MOSFET Formula

Threshold Voltage = Gate-Source Voltage-Effective Voltage
V_th = V_gs-V_eff

What is threshold voltage?

The value of voltage across the oxide at which a sufficient number of mobile electrons accumulate in the channel region to form a conducting channel is called the threshold voltage and is denoted as V_t.

Explain the whole process of the channel region of the MOSFET forming a parallel-plate capacitor.

The gate and the channel region of the MOSFET form a parallel-plate capacitor, with
the oxide layer acting as the capacitor dielectric. The positive gate voltage causes a positive charge to accumulate on the top plate of the capacitor (the gate electrode). The corresponding negative charge on the bottom plate is formed by the electrons in the induced channel. An electric field thus develops in the vertical direction. It is this field that controls the amount of charge in the channel, and thus it determines the channel conductivity and, in turn, the current that will flow through the channel when a voltage is applied.

How to Calculate Treshold Voltage of MOSFET?

Treshold Voltage of MOSFET calculator uses Threshold Voltage = Gate-Source Voltage-Effective Voltage to calculate the Threshold Voltage, The Treshold Voltage of MOSFET is defined as the voltage at which the transistor begins to turn on or conduct current. It is typically measured at the drain-source terminal and is an important parameter in determining the performance of the MOSFET. Threshold Voltage is denoted by V_th symbol.

How to calculate Treshold Voltage of MOSFET using this online calculator? To use this online calculator for Treshold Voltage of MOSFET, enter Gate-Source Voltage (V_gs) & Effective Voltage (V_eff) and hit the calculate button. Here is how the Treshold Voltage of MOSFET calculation can be explained with given input values -> 2.3 = 4-1.7.

FAQ

What is Treshold Voltage of MOSFET?

The Treshold Voltage of MOSFET is defined as the voltage at which the transistor begins to turn on or conduct current. It is typically measured at the drain-source terminal and is an important parameter in determining the performance of the MOSFET and is represented as V_th = V_gs-V_eff or Threshold Voltage = Gate-Source Voltage-Effective Voltage. Gate-source voltage is a critical parameter that affects the operation of an FET, and it is often used to control the device's behavior & The effective voltage in a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is the voltage that determines the behavior of the device. It is also known as the gate-source voltage.

How to calculate Treshold Voltage of MOSFET?

The Treshold Voltage of MOSFET is defined as the voltage at which the transistor begins to turn on or conduct current. It is typically measured at the drain-source terminal and is an important parameter in determining the performance of the MOSFET is calculated using Threshold Voltage = Gate-Source Voltage-Effective Voltage. To calculate Treshold Voltage of MOSFET, you need Gate-Source Voltage (V_gs) & Effective Voltage (V_eff). With our tool, you need to enter the respective value for Gate-Source Voltage & Effective Voltage and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Threshold Voltage?

In this formula, Threshold Voltage uses Gate-Source Voltage & Effective Voltage. We can use 1 other way(s) to calculate the same, which is/are as follows -

Threshold Voltage = Gate-Source Voltage-Effective Voltage

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