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Short Circuit Current of MOSFET Formula

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Output current is the electric current that flows from a device output terminal. It is the amount of electrical charge passing through the output per unit of time. Check FAQs

I out = g m \cdot V gs

I_out - Output Current?g_m - Transconductance?V_gs - Gate-Source Voltage?

Short Circuit Current of MOSFET Example

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Here is how the Short Circuit Current of MOSFET equation looks like with Values.

Here is how the Short Circuit Current of MOSFET equation looks like with Units.

Here is how the Short Circuit Current of MOSFET equation looks like.

0.002 = 0.5 \cdot 4

0.002A = 0.5mS \cdot 4V

0.002 = 0.5 \cdot 4

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Short Circuit Current of MOSFET Solution

Follow our step by step solution on how to calculate Short Circuit Current of MOSFET?

FIRST Step Consider the formula

I out = g m \cdot V gs

Next Step Substitute values of Variables

∴

I out = 0.5mS \cdot 4V

Next Step Convert Units

∴

I out = 0.0005S \cdot 4V

Next Step Prepare to Evaluate

∴

I out = 0.0005 \cdot 4

LAST Step Evaluate

∴

I out = 0.002A

Short Circuit Current of MOSFET Formula Elements

Variables

Output Current

Output current is the electric current that flows from a device output terminal. It is the amount of electrical charge passing through the output per unit of time.

Symbol: I_out

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Output Current

Transconductance

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.

Symbol: g_m

Measurement: Electric ConductanceUnit: mS

Note: Value can be positive or negative.

Formulas to find Transconductance

Gate-Source 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.

Symbol: V_gs

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Gate-Source Voltage

Other formulas in Current category

Go First Drain Current of MOSFET on Large-Signal Operation

I d1 = \frac{I b}{2} + \frac{I b}{V ov} \cdot \frac{V id}{2} \cdot \sqrt{1 - \frac{{V id}^{2}}{4 \cdot {V ov}^{2}}}

Go Second Drain Current of MOSFET on Large-Signal Operation

I d2 = \frac{I b}{2} - \frac{I b}{V ov} \cdot \frac{V id}{2} \cdot \sqrt{1 - \frac{{(V id)}^{2}}{4 \cdot {V ov}^{2}}}

Go Drain Current of MOSFET on Large-Signal Operation given Overdrive Voltage

i d = (\frac{I b}{V ov}) \cdot (\frac{V id}{2})

Go First Drain Current of MOSFET on Large-Signal Operation given Overdrive Voltage

I d1 = \frac{I b}{2} + \frac{I b}{V ov} \cdot \frac{V id}{2}

How to Evaluate Short Circuit Current of MOSFET?

Short Circuit Current of MOSFET evaluator uses Output Current = Transconductance*Gate-Source Voltage to evaluate the Output Current, The Short circuit current of MOSFET is the current when the maximum operating voltage of a MOSFET is exceeded, it goes into Avalanche breakdown. If the energy contained in the transient over-voltage is above the rated Avalanche energy level, then the MOSFET will fail. The device fails short circuit, initially, with no externally visible signs. Output Current is denoted by I_out symbol.

How to evaluate Short Circuit Current of MOSFET using this online evaluator? To use this online evaluator for Short Circuit Current of MOSFET, enter Transconductance (g_m) & Gate-Source Voltage (V_gs) and hit the calculate button.

FAQs on Short Circuit Current of MOSFET

What is the formula to find Short Circuit Current of MOSFET?

The formula of Short Circuit Current of MOSFET is expressed as Output Current = Transconductance*Gate-Source Voltage. Here is an example- 0.002 = 0.0005*4.

How to calculate Short Circuit Current of MOSFET?

With Transconductance (g_m) & Gate-Source Voltage (V_gs) we can find Short Circuit Current of MOSFET using the formula - Output Current = Transconductance*Gate-Source Voltage.

Can the Short Circuit Current of MOSFET be negative?

Yes, the Short Circuit Current of MOSFET, measured in Electric Current can be negative.

Which unit is used to measure Short Circuit Current of MOSFET?

Short Circuit Current of MOSFET is usually measured using the Ampere[A] for Electric Current. Milliampere[A], Microampere[A], Centiampere[A] are the few other units in which Short Circuit Current of MOSFET can be measured.

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