## Output Current of Small Signal Solution

STEP 0: Pre-Calculation Summary
Formula Used
Output Current = (-Transconductance*Critical Voltage)*(Drain Resistance/(Load Resistance+Drain Resistance))
iout = (-gm*Vc)*(Rd/(RL+Rd))
This formula uses 5 Variables
Variables Used
Output Current - (Measured in Ampere) - The Output Current in a MOSFET refers to the current flowing through the drain terminal when a voltage is applied at the gate terminal.
Transconductance - (Measured in Siemens) - Transconductance in small signal amplifiers refers to the change in current output for a small change in input voltage. It is a measure of the amplifier's ability to follow small signal variations.
Critical Voltage - (Measured in Volt) - Critical Voltage is the minimum phase to the neutral voltage which glows and appears all along the line conductor.
Drain Resistance - (Measured in Ohm) - Drain Resistance is defined as the resistance opposing the flow of current through the drain of the transistor.
Load Resistance - (Measured in Ohm) - Load Resistance is the opposition to the flow of current in an electrical circuit due to the presence of a load.
STEP 1: Convert Input(s) to Base Unit
Transconductance: 1.57 Siemens --> 1.57 Siemens No Conversion Required
Critical Voltage: 4 Volt --> 4 Volt No Conversion Required
Drain Resistance: 11 Ohm --> 11 Ohm No Conversion Required
Load Resistance: 14.88 Ohm --> 14.88 Ohm No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
iout = (-gm*Vc)*(Rd/(RL+Rd)) --> (-1.57*4)*(11/(14.88+11))
Evaluating ... ...
iout = -2.66924265842349
STEP 3: Convert Result to Output's Unit
-2.66924265842349 Ampere --> No Conversion Required
-2.66924265842349 -2.669243 Ampere <-- Output Current
(Calculation completed in 00.004 seconds)
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## Credits

Created by Ritwik Tripathi
Vellore Institute of Technology (VIT Vellore), Vellore
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Chandigarh University (CU), Punjab
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## < 15 Small Signal Analysis Calculators

Small Signal Voltage Gain with respect to Input Resistance
Voltage Gain = (Input Amplifier Resistance/(Input Amplifier Resistance+Self Induced Resistance))*((Source Resistance*Output Resistance)/(Source Resistance+Output Resistance))/(1/Transconductance+((Source Resistance*Output Resistance)/(Source Resistance+Output Resistance)))
Gate to Source Voltage with respect to Small Signal Resistance
Critical Voltage = Input Voltage*((1/Transconductance)/((1/Transconductance)*((Source Resistance*Small Signal Resistance)/(Source Resistance+Small Signal Resistance))))
Common Drain Output Voltage in Small Signal
Output Voltage = Transconductance*Critical Voltage*((Source Resistance*Small Signal Resistance)/(Source Resistance+Small Signal Resistance))
Output Voltage of Small Signal P-Channel
Output Voltage = Transconductance*Source to Gate Voltage*((Output Resistance*Drain Resistance)/(Drain Resistance+Output Resistance))
Voltage Gain for Small Signal
Voltage Gain = (Transconductance*(1/((1/Load Resistance)+(1/Drain Resistance))))/(1+(Transconductance*Self Induced Resistance))
Small-Signal Voltage Gain with respect to Drain Resistance
Voltage Gain = -(Transconductance*((Output Resistance *Drain Resistance)/(Output Resistance+Drain Resistance)))
Output Current of Small Signal
Output Current = (-Transconductance*Critical Voltage)*(Drain Resistance/(Load Resistance+Drain Resistance))
Input Current of Small Signal
Input Current Of Small Signal = -(Critical Voltage*((1+Transconductance*Self Induced Resistance)/Self Induced Resistance))
Amplification Factor for Small Signal MOSFET Model
Amplification Factor = 1/Electron Mean Free Path*sqrt((2*Process Transconductance Parameter)/Drain Current)
Transconductance Given Small Signal Parameters
Transconductance = 2*Transconductance Parameter*(DC Component of Gate to Source Voltage-Total Voltage)
Gate to Source Voltage in Small Signal
Critical Voltage = -Input Voltage/(1+Self Induced Resistance*Transconductance)
Voltage Gain using Small Signal
Voltage Gain = Transconductance*1/(1/Load Resistance+1/Finite Resistance)
Small Signal Output Voltage
Output Voltage = Transconductance*Source to Gate Voltage*Load Resistance
Drain Current of MOSFET Small Signal
Drain Current = 1/(Electron Mean Free Path*Output Resistance)
Amplification Factor in Small Signal MOSFET Model
Amplification Factor = Transconductance*Output Resistance

## Output Current of Small Signal Formula

Output Current = (-Transconductance*Critical Voltage)*(Drain Resistance/(Load Resistance+Drain Resistance))
iout = (-gm*Vc)*(Rd/(RL+Rd))

## What is the application of drain current in mosfet?

The drain current plays a crucial role in various applications of MOSFETs, including amplification in audio and radio frequency circuits, switching operations in digital logic circuits, and power management in voltage regulators.

## How to Calculate Output Current of Small Signal?

Output Current of Small Signal calculator uses Output Current = (-Transconductance*Critical Voltage)*(Drain Resistance/(Load Resistance+Drain Resistance)) to calculate the Output Current, The Output Current Of Small Signal formula is defined as the current flowing through the drain terminal when a voltage is applied at the gate terminal. Output Current is denoted by iout symbol.

How to calculate Output Current of Small Signal using this online calculator? To use this online calculator for Output Current of Small Signal, enter Transconductance (gm), Critical Voltage (Vc), Drain Resistance (Rd) & Load Resistance (RL) and hit the calculate button. Here is how the Output Current of Small Signal calculation can be explained with given input values -> -2.669243 = (-1.57*4)*(11/(14.88+11)).

### FAQ

What is Output Current of Small Signal?
The Output Current Of Small Signal formula is defined as the current flowing through the drain terminal when a voltage is applied at the gate terminal and is represented as iout = (-gm*Vc)*(Rd/(RL+Rd)) or Output Current = (-Transconductance*Critical Voltage)*(Drain Resistance/(Load Resistance+Drain Resistance)). Transconductance in small signal amplifiers refers to the change in current output for a small change in input voltage. It is a measure of the amplifier's ability to follow small signal variations, Critical Voltage is the minimum phase to the neutral voltage which glows and appears all along the line conductor, Drain Resistance is defined as the resistance opposing the flow of current through the drain of the transistor & Load Resistance is the opposition to the flow of current in an electrical circuit due to the presence of a load.
How to calculate Output Current of Small Signal?
The Output Current Of Small Signal formula is defined as the current flowing through the drain terminal when a voltage is applied at the gate terminal is calculated using Output Current = (-Transconductance*Critical Voltage)*(Drain Resistance/(Load Resistance+Drain Resistance)). To calculate Output Current of Small Signal, you need Transconductance (gm), Critical Voltage (Vc), Drain Resistance (Rd) & Load Resistance (RL). With our tool, you need to enter the respective value for Transconductance, Critical Voltage, Drain Resistance & Load Resistance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well. Let Others Know