Output Resistance of Mosfet Calculator

✖The Early Voltage is a parameter that describes how the collector current changes with the collector-to-emitter voltage. It is a measure of the linearity of the output characteristic curve.ⓘ Early Voltage [v_a]			+10% -10%
✖The Collector Current s the current that flows through the collector terminal. It is the current that is controlled by the base current.ⓘ Collector Current [i_c]			+10% -10%

✖Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output.ⓘ Output Resistance of Mosfet [R_out]

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Formula

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Output Resistance of Mosfet

Formula

`"R"_{"out"} = "v"_{"a"}/"i"_{"c"}`

Example

`"0.002529kΩ"="4.78V"/"1.89A"`

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Output Resistance of Mosfet Solution

STEP 0: Pre-Calculation Summary

Formula Used

Output Resistance = Early Voltage/Collector Current
R_out = v_a/i_c
This formula uses 3 Variables

Variables Used

Output Resistance - (Measured in Ohm) - Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output.
Early Voltage - (Measured in Volt) - The Early Voltage is a parameter that describes how the collector current changes with the collector-to-emitter voltage. It is a measure of the linearity of the output characteristic curve.
Collector Current - (Measured in Ampere) - The Collector Current s the current that flows through the collector terminal. It is the current that is controlled by the base current.

STEP 1: Convert Input(s) to Base Unit

Early Voltage: 4.78 Volt --> 4.78 Volt No Conversion Required
Collector Current: 1.89 Ampere --> 1.89 Ampere No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_out = v_a/i_c --> 4.78/1.89

Evaluating ... ...

R_out = 2.52910052910053

STEP 3: Convert Result to Output's Unit

2.52910052910053 Ohm -->0.00252910052910053 Kilohm (Check conversion here)

FINAL ANSWER

0.00252910052910053 ≈ 0.002529 Kilohm <-- Output Resistance

(Calculation completed in 00.004 seconds)

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Created by Suma Madhuri

VIT University (VIT), Chennai

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< 14 Resistance Calculators

MOSFET as Linear Resistance given Aspect Ratio

Go Linear Resistance = Channel Length/(Mobility of Electrons at Surface of Channel*Oxide Capacitance*Channel Width*Effective Voltage)

Output Resistance of Differential Amplifier

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

Input Resistance of Mosfet

Go Input Resistance = Input Voltage/(Collector Current*Small Signal Current Gain)

Finite Resistance between Drain and Source

Go Finite Resistance = modulus(Positive DC Voltage)/Drain Current

Output Resistance given Channel Length Modulation

Go Output Resistance = 1/(Channel Length Modulation*Drain Current)

Input Resistance given Transconductance

Go Input Resistance = Small Signal Current Gain/Transconductance

Electron Mean Free Path

Go Electron Mean Free Path = 1/(Output Resistance*Drain Current)

Drain Output Resistance

Go Output Resistance = 1/(Electron Mean Free Path*Drain Current)

Output Resistance given Transconductance

Go Output Resistance = 1/(Carrier Mobility*Transconductance)

Voltage Dependent Resistance in MOSFET

Go Finite Resistance = Effective Voltage/Drain Current

Output Resistance of Mosfet

Go Output Resistance = Early Voltage/Collector Current

Small Signal Input Resistance

Go Input Resistance = Input Voltage/Base Current

Conductance in Linear Resistance of MOSFET

Go Conductance of Channel = 1/Linear Resistance

MOSFET as Linear Resistance

Go Linear Resistance = 1/Conductance of Channel

Output Resistance of Mosfet Formula

Output Resistance = Early Voltage/Collector Current
R_out = v_a/i_c

What are the applications of the output resistance of a MOSFET?

The high output resistance of MOSFETs makes them useful in a variety of applications, including:

Voltage regulators: MOSFETs can be used as voltage regulators because their high output resistance allows them to control the flow of current through a circuit without affecting the voltage at the output of the circuit.
Buffers: MOSFETs can be used as buffers because their high output resistance allows them to isolate one circuit from another without affecting the signal.

How to Calculate Output Resistance of Mosfet?

Output Resistance of Mosfet calculator uses Output Resistance = Early Voltage/Collector Current to calculate the Output Resistance, The Output Resistance of Mosfet formula is defined as a measure of how much the drain current changes when the drain voltage changes. It is an important parameter to consider when designing MOSFET circuits, as it can affect the gain, bandwidth, and stability of the circuit. Output Resistance is denoted by R_out symbol.

How to calculate Output Resistance of Mosfet using this online calculator? To use this online calculator for Output Resistance of Mosfet, enter Early Voltage (v_a) & Collector Current (i_c) and hit the calculate button. Here is how the Output Resistance of Mosfet calculation can be explained with given input values -> 2.5E-6 = 4.78/1.89.

FAQ

What is Output Resistance of Mosfet?

The Output Resistance of Mosfet formula is defined as a measure of how much the drain current changes when the drain voltage changes. It is an important parameter to consider when designing MOSFET circuits, as it can affect the gain, bandwidth, and stability of the circuit and is represented as R_out = v_a/i_c or Output Resistance = Early Voltage/Collector Current. The Early Voltage is a parameter that describes how the collector current changes with the collector-to-emitter voltage. It is a measure of the linearity of the output characteristic curve & The Collector Current s the current that flows through the collector terminal. It is the current that is controlled by the base current.

How to calculate Output Resistance of Mosfet?

The Output Resistance of Mosfet formula is defined as a measure of how much the drain current changes when the drain voltage changes. It is an important parameter to consider when designing MOSFET circuits, as it can affect the gain, bandwidth, and stability of the circuit is calculated using Output Resistance = Early Voltage/Collector Current. To calculate Output Resistance of Mosfet, you need Early Voltage (v_a) & Collector Current (i_c). With our tool, you need to enter the respective value for Early Voltage & Collector Current 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 Output Resistance?

In this formula, Output Resistance uses Early Voltage & Collector Current. We can use 4 other way(s) to calculate the same, which is/are as follows -

Output Resistance = 1/(Electron Mean Free Path*Drain Current)
Output Resistance = ((Common Mode Input Signal*Transconductance)-Total Current)/(2*Transconductance*Total Current)
Output Resistance = 1/(Carrier Mobility*Transconductance)
Output Resistance = 1/(Channel Length Modulation*Drain Current)

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