Transconductance using Collector Current of Transistor Amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
MOSFET Primary Transconductance = Collector Current/Threshold Voltage
gmp = ic/Vt
This formula uses 3 Variables
Variables Used
MOSFET Primary Transconductance - (Measured in Siemens) - MOSFET Primary Transconductance is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage.
Collector Current - (Measured in Ampere) - Collector current is an amplified output current of a bipolar junction transistor.
Threshold Voltage - (Measured in Volt) - Threshold voltage of transistor is the minimum gate to source voltage that is needed to create a conducting path between the source and drain terminals.
STEP 1: Convert Input(s) to Base Unit
Collector Current: 39.52 Milliampere --> 0.03952 Ampere (Check conversion here)
Threshold Voltage: 2 Volt --> 2 Volt No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
gmp = ic/Vt --> 0.03952/2
Evaluating ... ...
gmp = 0.01976
STEP 3: Convert Result to Output's Unit
0.01976 Siemens -->19.76 Millisiemens (Check conversion here)
FINAL ANSWER
19.76 Millisiemens <-- MOSFET Primary Transconductance
(Calculation completed in 00.004 seconds)

Credits

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Birsa Institute of Technology (BIT), Sindri
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18 Transistor Amplifier Characteristics Calculators

Current Flowing through Induced Channel in Transistor given Oxide Voltage
Go Output Current = (Mobility of Electron*Oxide Capacitance*(Width of Channel/Length of Channel)*(Voltage across Oxide-Threshold Voltage))*Saturation Voltage between Drain and Source
Overall Effective Voltage of MOSFET Transconductance
Go Effective Voltage = sqrt(2*Saturation Drain Current/(Process Transconductance Parameter*(Width of Channel/Length of Channel)))
Current Entering Drain Terminal of MOSFET at Saturation
Go Saturation Drain Current = 1/2*Process Transconductance Parameter*(Width of Channel/Length of Channel)*(Effective Voltage)^2
Input Voltage given Signal Voltage
Go Fundamental Component Voltage = (Finite Input Resistance/(Finite Input Resistance+Signal Resistance))*Small Signal Voltage
Transconductance Parameter of MOS Transistor
Go Transconductance Parameter = Drain Current/((Voltage across Oxide-Threshold Voltage)*Voltage between Gate and Source)
Instantaneous Drain Current using Voltage between Drain and Source
Go Drain Current = Transconductance Parameter*(Voltage across Oxide-Threshold Voltage)*Voltage between Gate and Source
Drain Current of Transistor
Go Drain Current = (Fundamental Component Voltage+Total Instantaneous Drain Voltage)/Drain Resistance
Total Instantaneous Drain Voltage
Go Total Instantaneous Drain Voltage = Fundamental Component Voltage-Drain Resistance*Drain Current
Input Voltage in Transistor
Go Fundamental Component Voltage = Drain Resistance*Drain Current-Total Instantaneous Drain Voltage
Transconductance of Transistor Amplifiers
Go MOSFET Primary Transconductance = (2*Drain Current)/(Voltage across Oxide-Threshold Voltage)
Signal Current in Emitter given Input Signal
Go Signal Current in Emitter = Fundamental Component Voltage/Emitter Resistance
Transconductance using Collector Current of Transistor Amplifier
Go MOSFET Primary Transconductance = Collector Current/Threshold Voltage
Input Resistance of Common-Collector Amplifier
Go Input Resistance = Fundamental Component Voltage/Base Current
Output Resistance of Common Gate Circuit given Test-Voltage
Go Finite Output Resistance = Test Voltage/Test Current
Amplifier Input of Transistor Amplifier
Go Amplifier Input = Input Resistance*Input Current
DC Current Gain of Amplifier
Go DC Current Gain = Collector Current/Base Current
Input Resistance of Common-Gate Circuit
Go Input Resistance = Test Voltage/Test Current
Test Current of Transistor Amplifier
Go Test Current = Test Voltage/Input Resistance

18 CV Actions of Common Stage Amplifiers Calculators

Output Voltage of Controlled Source Transistor
Go DC Component of Gate to Source Voltage = (Voltage Gain*Electric Current-Short Circuit Transconductance*Differential Output Signal)*(1/Final Resistance+1/Resistance of Primary Winding in Secondary)
Input Resistance of Common-Base Circuit
Go Input Resistance = (Emitter Resistance*(Finite Output Resistance+Load Resistance))/(Finite Output Resistance+(Load Resistance/(Collector Base Current Gain+1)))
Output Resistance at Another Drain of Controlled Source Transistor
Go Drain Resistance = Resistance of Secondary Winding in Primary+2*Finite Resistance+2*Finite Resistance*MOSFET Primary Transconductance*Resistance of Secondary Winding in Primary
Output Resistance of Emitter-Degenerated CE Amplifier
Go Drain Resistance = Finite Output Resistance+(MOSFET Primary Transconductance*Finite Output Resistance)*(1/Emitter Resistance+1/Small Signal Input Resistance)
Input Resistance of Common Emitter Amplifier given Small-Signal Input Resistance
Go Input Resistance = (1/Base Resistance+1/Base Resistance 2+1/(Small Signal Input Resistance+(Collector Base Current Gain+1)*Emitter Resistance))^-1
Output Resistance of CS Amplifier with Source Resistance
Go Drain Resistance = Finite Output Resistance+Source Resistance+(MOSFET Primary Transconductance*Finite Output Resistance*Source Resistance)
Input Resistance of Common-Emitter Amplifier given Emitter Resistance
Go Input Resistance = (1/Base Resistance+1/Base Resistance 2+1/((Total Resistance+Emitter Resistance)*(Collector Base Current Gain+1)))^-1
Instantaneous Drain Current using Voltage between Drain and Source
Go Drain Current = Transconductance Parameter*(Voltage across Oxide-Threshold Voltage)*Voltage between Gate and Source
Transconductance in Common Source Amplifier
Go MOSFET Primary Transconductance = Unity Gain Frequency*(Gate to Source Capacitance+Capacitance Gate to Drain)
Input Resistance of Common Emitter Amplifier
Go Input Resistance = (1/Base Resistance+1/Base Resistance 2+1/Small Signal Input Resistance)^-1
Input Impedance of Common-Base Amplifier
Go Input Impedance = (1/Emitter Resistance+1/Small Signal Input Resistance)^(-1)
Signal Current in Emitter given Input Signal
Go Signal Current in Emitter = Fundamental Component Voltage/Emitter Resistance
Transconductance using Collector Current of Transistor Amplifier
Go MOSFET Primary Transconductance = Collector Current/Threshold Voltage
Fundamental Voltage in Common-Emitter Amplifier
Go Fundamental Component Voltage = Input Resistance*Base Current
Input Resistance of Common-Collector Amplifier
Go Input Resistance = Fundamental Component Voltage/Base Current
Resistance of Emitter in Common-Base Amplifier
Go Emitter Resistance = Input Voltage/Emitter Current
Emitter Current of Common-Base Amplifier
Go Emitter Current = Input Voltage/Emitter Resistance
Load Voltage of CS Amplifier
Go Load Voltage = Voltage Gain*Input Voltage

Transconductance using Collector Current of Transistor Amplifier Formula

MOSFET Primary Transconductance = Collector Current/Threshold Voltage
gmp = ic/Vt

What is the use of transconductance in MOSFET?

Transconductance is an expression of the performance of a bipolar transistor or field-effect transistor (FET). In general, the larger the transconductance figure for a device, the greater the gain(amplification) it is capable of delivering, when all other factors are held constant.

How to Calculate Transconductance using Collector Current of Transistor Amplifier?

Transconductance using Collector Current of Transistor Amplifier calculator uses MOSFET Primary Transconductance = Collector Current/Threshold Voltage to calculate the MOSFET Primary Transconductance, The Transconductance using collector current of transistor amplifier is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage. MOSFET Primary Transconductance is denoted by gmp symbol.

How to calculate Transconductance using Collector Current of Transistor Amplifier using this online calculator? To use this online calculator for Transconductance using Collector Current of Transistor Amplifier, enter Collector Current (ic) & Threshold Voltage (Vt) and hit the calculate button. Here is how the Transconductance using Collector Current of Transistor Amplifier calculation can be explained with given input values -> 19760 = 0.03952/2.

FAQ

What is Transconductance using Collector Current of Transistor Amplifier?
The Transconductance using collector current of transistor amplifier is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage and is represented as gmp = ic/Vt or MOSFET Primary Transconductance = Collector Current/Threshold Voltage. Collector current is an amplified output current of a bipolar junction transistor & Threshold voltage of transistor is the minimum gate to source voltage that is needed to create a conducting path between the source and drain terminals.
How to calculate Transconductance using Collector Current of Transistor Amplifier?
The Transconductance using collector current of transistor amplifier is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage is calculated using MOSFET Primary Transconductance = Collector Current/Threshold Voltage. To calculate Transconductance using Collector Current of Transistor Amplifier, you need Collector Current (ic) & Threshold Voltage (Vt). With our tool, you need to enter the respective value for Collector Current & Threshold Voltage 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 MOSFET Primary Transconductance?
In this formula, MOSFET Primary Transconductance uses Collector Current & Threshold Voltage. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • MOSFET Primary Transconductance = (2*Drain Current)/(Voltage across Oxide-Threshold Voltage)
  • MOSFET Primary Transconductance = Unity Gain Frequency*(Gate to Source Capacitance+Capacitance Gate to Drain)
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