Drain Current in MOSFET Formulas

Drain current is the electric current flowing from the drain to the source of a field-effect transistor (FET) or a metal-oxide-semiconductor field-effect transistor (MOSFET). And is denoted by I_d. Drain Current is usually measured using the Milliampere for Electric Current. Note that the value of Drain Current is always positive.

Formulas to find Drain Current in MOSFET

fxDrain Current in Triode Region of PMOS TransistorGo

fxDrain Current in Triode Region of PMOS Transistor given VsdGo

fxOverall Drain Current of PMOS TransistorGo

fxCurrent in Inversion Channel of PMOSGo

fxDrain Current from Source to DrainGo

List of variables in MOSFET formulas

fx Process Transconductance Parameter in PMOS Go

fx Aspect Ratio Go

fx Voltage between Gate and Source Go

fx Threshold Voltage Go

fx Voltage between Drain and Source Go

fx Effective Voltage Go

fx Early Voltage Go

fx Width of Junction Go

fx Inversion Layer Charge Go

fx Drift Velocity of Inversion Go

fx Mobility of Holes in Channel Go

fx Horizontal Component of Electric Field in Channel Go

FAQ

What is the Drain Current?

Drain current is the electric current flowing from the drain to the source of a field-effect transistor (FET) or a metal-oxide-semiconductor field-effect transistor (MOSFET). Drain Current is usually measured using the Milliampere for Electric Current. Note that the value of Drain Current is always positive.

Can the Drain Current be negative?

No, the Drain Current, measured in Electric Current cannot be negative.

What unit is used to measure Drain Current?

Drain Current is usually measured using the Milliampere[mA] for Electric Current. Ampere[mA], Microampere[mA], Centiampere[mA] are the few other units in which Drain Current can be measured.

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