Short Circuit Current of MOSFET Solution

STEP 0: Pre-Calculation Summary
Formula Used
Output Current = Transconductance*Gate-Source Voltage
Iout = gm*Vgs
This formula uses 3 Variables
Variables Used
Output Current - (Measured in Ampere) - 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.
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.
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.
STEP 1: Convert Input(s) to Base Unit
Transconductance: 0.5 Millisiemens --> 0.0005 Siemens (Check conversion here)
Gate-Source Voltage: 4 Volt --> 4 Volt No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Iout = gm*Vgs --> 0.0005*4
Evaluating ... ...
Iout = 0.002
STEP 3: Convert Result to Output's Unit
0.002 Ampere --> No Conversion Required
FINAL ANSWER
0.002 Ampere <-- Output Current
(Calculation completed in 00.004 seconds)

Credits

Created by Payal Priya
Birsa Institute of Technology (BIT), Sindri
Payal Priya has created this Calculator and 600+ more calculators!
Verified by Anshika Arya
National Institute Of Technology (NIT), Hamirpur
Anshika Arya has verified this Calculator and 2500+ more calculators!

12 Current Calculators

Second Drain Current of MOSFET on Large-Signal Operation
Go Drain Current 2 = DC Bias Current/2-DC Bias Current/Overdrive Voltage*Differential Input Signal/2*sqrt(1-(Differential Input Signal)^2/(4*Overdrive Voltage^2))
First Drain Current of MOSFET on Large-Signal Operation
Go Drain Current 1 = DC Bias Current/2+DC Bias Current/Overdrive Voltage*Differential Input Signal/2*sqrt(1-Differential Input Signal^2/(4*Overdrive Voltage^2))
Instantaneous Drain Current
Go Drain Current = Transconductance Parameter*(DC Component of Gate to Source Voltage-Total Voltage+Critical Voltage)^2
Drain Saturation Current of MOSFET
Go Saturation Drain Current = 1/2*Process Transconductance in PMOS*Channel Width/Channel Length*(Effective Voltage)^2
Drain Current without Channel-Length Modulation of MOSFET
Go Drain Current = 1/2*Process Transconductance in PMOS*Aspect Ratio*(Gate-Source Voltage-Threshold Voltage)^2
Second Drain Current of MOSFET on Large-Signal Operation given Overdrive Voltage
Go Drain Current 2 = DC Bias Current/2-DC Bias Current/Overdrive Voltage*Differential Input Signal/2
First Drain Current of MOSFET on Large-Signal Operation given Overdrive Voltage
Go Drain Current 1 = DC Bias Current/2+DC Bias Current/Overdrive Voltage*Differential Input Signal/2
Drain Current of MOSFET on Large-Signal Operation given Overdrive Voltage
Go Drain Current = (DC Bias Current/Overdrive Voltage)*(Differential Input Signal/2)
Instantaneous Drain Current with respect to DC Component of Vgs
Go Drain Current = Transconductance Parameter*((Critical Voltage-Total Voltage)^2)
Current in Common-Mode Rejection of MOSFET
Go Total Current = Incremental Signal/((1/Transconductance)+(2*Output Resistance))
Drain Current in Load Line
Go Drain Current = (Supply Voltage-Drain Source Voltage)/Load Resistance
Short Circuit Current of MOSFET
Go Output Current = Transconductance*Gate-Source Voltage

Short Circuit Current of MOSFET Formula

Output Current = Transconductance*Gate-Source Voltage
Iout = gm*Vgs

How do you protect a MOSFET from a short circuit?

The voltage across the internal resistance can be sensed using a simple comparator or even a transistor, which switches on at a voltage of around 0.5V. You can thus avoid the use of a sense resistor (shunt), which usually produces an undesirable extra voltage drop. The comparator can be monitored by a microcontroller.

How to Calculate Short Circuit Current of MOSFET?

Short Circuit Current of MOSFET calculator uses Output Current = Transconductance*Gate-Source Voltage to calculate 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 Iout symbol.

How to calculate Short Circuit Current of MOSFET using this online calculator? To use this online calculator for Short Circuit Current of MOSFET, enter Transconductance (gm) & Gate-Source Voltage (Vgs) and hit the calculate button. Here is how the Short Circuit Current of MOSFET calculation can be explained with given input values -> 0.002 = 0.0005*4.

FAQ

What is Short Circuit Current of MOSFET?
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 and is represented as Iout = gm*Vgs or Output Current = Transconductance*Gate-Source Voltage. 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 & 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.
How to calculate Short Circuit Current of MOSFET?
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 is calculated using Output Current = Transconductance*Gate-Source Voltage. To calculate Short Circuit Current of MOSFET, you need Transconductance (gm) & Gate-Source Voltage (Vgs). With our tool, you need to enter the respective value for Transconductance & Gate-Source Voltage and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!