DC Bias Current of MOSFET Calculator

✖Transconductance parameter is a crucial parameter in electronic devices and circuits, which helps to describe and quantify the input-output relationship between voltage and current.ⓘ Transconductance Parameter [k_n]			+10% -10%
✖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%
✖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.ⓘ Threshold Voltage [V_th]			+10% -10%

✖DC bias current is the constant current that flows through a circuit or device to establish a certain operating point or bias point.ⓘ DC Bias Current of MOSFET [I_b]

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DC Bias Current of MOSFET Solution

STEP 0: Pre-Calculation Summary

Formula Used

DC Bias Current = 1/2*Transconductance Parameter*(Gate-Source Voltage-Threshold Voltage)^2
I_b = 1/2*k_n*(V_gs-V_th)^2
This formula uses 4 Variables

Variables Used

DC Bias Current - (Measured in Ampere) - DC bias current is the constant current that flows through a circuit or device to establish a certain operating point or bias point.
Transconductance Parameter - (Measured in Ampere per Square Volt) - Transconductance parameter is a crucial parameter in electronic devices and circuits, which helps to describe and quantify the input-output relationship between voltage and current.
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.
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.

STEP 1: Convert Input(s) to Base Unit

Transconductance Parameter: 10.5 Ampere per Square Volt --> 10.5 Ampere per Square Volt No Conversion Required
Gate-Source Voltage: 4 Volt --> 4 Volt No Conversion Required
Threshold Voltage: 2.3 Volt --> 2.3 Volt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_b = 1/2*k_n*(V_gs-V_th)^2 --> 1/2*10.5*(4-2.3)^2

Evaluating ... ...

I_b = 15.1725

STEP 3: Convert Result to Output's Unit

15.1725 Ampere -->15172.5 Milliampere (Check conversion here)

FINAL ANSWER

15172.5 Milliampere <-- DC Bias Current

(Calculation completed in 00.004 seconds)

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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Jaipur Engineering College and Research Centre (JECRC), Jaipur

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< Biasing Calculators

DC Bias Current of MOSFET

LaTeX Go DC Bias Current = 1/2*Transconductance Parameter*(Gate-Source Voltage-Threshold Voltage)^2

DC Bias Output Voltage at Drain

LaTeX Go Output Voltage = Supply Voltage-Load Resistance*DC Bias Current

DC Bias Current of MOSFET using Overdrive Voltage

LaTeX Go DC Bias Current = 1/2*Transconductance Parameter*Effective Voltage^2

Input Bias Current

LaTeX Go DC Bias Current = (Input Bias Current 1+Input Bias Current 2)/2

DC Bias Current of MOSFET Formula

LaTeX Go

DC Bias Current = 1/2*Transconductance Parameter*(Gate-Source Voltage-Threshold Voltage)^2
I_b = 1/2*k_n*(V_gs-V_th)^2

What is DC operating point of MOSFET?

This calculates the DC operating point, also known as the bias point, of a circuit. This is the steady-state voltage or current at a specified pin of an active device with no input signal applied.

What is the different type of biasing in MOSFET?

Biasing of MOSFETs: Two common type biasing circuits, voltage divider bias and drain feedback bias are considered.

How to Calculate DC Bias Current of MOSFET?

DC Bias Current of MOSFET calculator uses DC Bias Current = 1/2*Transconductance Parameter*(Gate-Source Voltage-Threshold Voltage)^2 to calculate the DC Bias Current, The DC bias current of MOSFET is given by the d.c. drain current and drain-to-source voltage and it is always on the load line. It is also the amount of current that an electronic device needs in DC Biasing condition, where an extra load is added and voltage is given at junctions as per the type of biasing. DC Bias Current is denoted by I_b symbol.

How to calculate DC Bias Current of MOSFET using this online calculator? To use this online calculator for DC Bias Current of MOSFET, enter Transconductance Parameter (k_n), Gate-Source Voltage (V_gs) & Threshold Voltage (V_th) and hit the calculate button. Here is how the DC Bias Current of MOSFET calculation can be explained with given input values -> 1.5E+7 = 1/2*10.5*(4-2.3)^2.

FAQ

What is DC Bias Current of MOSFET?

The DC bias current of MOSFET is given by the d.c. drain current and drain-to-source voltage and it is always on the load line. It is also the amount of current that an electronic device needs in DC Biasing condition, where an extra load is added and voltage is given at junctions as per the type of biasing and is represented as I_b = 1/2*k_n*(V_gs-V_th)^2 or DC Bias Current = 1/2*Transconductance Parameter*(Gate-Source Voltage-Threshold Voltage)^2. Transconductance parameter is a crucial parameter in electronic devices and circuits, which helps to describe and quantify the input-output relationship between voltage and current, 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 & 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.

How to calculate DC Bias Current of MOSFET?

The DC bias current of MOSFET is given by the d.c. drain current and drain-to-source voltage and it is always on the load line. It is also the amount of current that an electronic device needs in DC Biasing condition, where an extra load is added and voltage is given at junctions as per the type of biasing is calculated using DC Bias Current = 1/2*Transconductance Parameter*(Gate-Source Voltage-Threshold Voltage)^2. To calculate DC Bias Current of MOSFET, you need Transconductance Parameter (k_n), Gate-Source Voltage (V_gs) & Threshold Voltage (V_th). With our tool, you need to enter the respective value for Transconductance Parameter, Gate-Source Voltage & Threshold 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 DC Bias Current?

In this formula, DC Bias Current uses Transconductance Parameter, Gate-Source Voltage & Threshold Voltage. We can use 3 other way(s) to calculate the same, which is/are as follows -

DC Bias Current = 1/2*Transconductance Parameter*Effective Voltage^2
DC Bias Current = (Input Bias Current 1+Input Bias Current 2)/2
DC Bias Current = Drain Current 1+Drain Current 2

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