Transconductance of Small Signal Operation of BJT Amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
Transconductance = Collector Current/Threshold Voltage
gm = ic/Vth
This formula uses 3 Variables
Variables Used
Transconductance - (Measured in Siemens) - Transconductance is defined as an expression of the performance of a bipolar transistor or field-effect transistor.
Collector Current - (Measured in Ampere) - Collector Current is defined as the direct current that passes through the collector of a transistor.
Threshold Voltage - (Measured in Volt) - Threshold Voltage is defined as the minimum amount of voltage required by the transistor to turn on.
STEP 1: Convert Input(s) to Base Unit
Collector Current: 23 Milliampere --> 0.023 Ampere (Check conversion here)
Threshold Voltage: 0.7 Volt --> 0.7 Volt No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
gm = ic/Vth --> 0.023/0.7
Evaluating ... ...
gm = 0.0328571428571429
STEP 3: Convert Result to Output's Unit
0.0328571428571429 Siemens -->32.8571428571429 Millisiemens (Check conversion here)
FINAL ANSWER
32.8571428571429 32.85714 Millisiemens <-- Transconductance
(Calculation completed in 00.020 seconds)

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Birsa Institute of Technology (BIT), Sindri
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4 Resistance Calculators

Differential Input Resistance of BJT Amplifier given Common-Emitter Current Gain
Go Differential Input Resistance = (Common Emitter Current Gain+1)*(2*Emitter Resistance+2*Change in Collector Resistance)
Differential Input Resistance of BJT Amplifier
Go Differential Input Resistance = Differential Input Voltage/Base Current
Transconductance of Small Signal Operation of BJT Amplifier
Go Transconductance = Collector Current/Threshold Voltage
Differential Input Resistance of BJT Amplifier given Small-Signal Input Resistance
Go Differential Input Resistance = 2*Base Emitter Input Resistance

Transconductance of Small Signal Operation of BJT Amplifier Formula

Transconductance = Collector Current/Threshold Voltage
gm = ic/Vth

What is small signal operation in BJT?

A BJT small signal model is a non-linear replacement circuit for the linear large signal model or typical transistor symbol that incorporates the transistor's DC bias conditions and allows for evaluation of behavior when a small AC signal (< DC bias voltages and/or currents) is applied.

How to Calculate Transconductance of Small Signal Operation of BJT Amplifier?

Transconductance of Small Signal Operation of BJT Amplifier calculator uses Transconductance = Collector Current/Threshold Voltage to calculate the Transconductance, The Transconductance of small signal operation of BJT Amplifier formula is defined as the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage. Typical values of gm for a small-signal field-effect transistor are 1 to 30 millisiemens. Transconductance is denoted by gm symbol.

How to calculate Transconductance of Small Signal Operation of BJT Amplifier using this online calculator? To use this online calculator for Transconductance of Small Signal Operation of BJT Amplifier, enter Collector Current (ic) & Threshold Voltage (Vth) and hit the calculate button. Here is how the Transconductance of Small Signal Operation of BJT Amplifier calculation can be explained with given input values -> 32857.14 = 0.023/0.7.

FAQ

What is Transconductance of Small Signal Operation of BJT Amplifier?
The Transconductance of small signal operation of BJT Amplifier formula is defined as the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage. Typical values of gm for a small-signal field-effect transistor are 1 to 30 millisiemens and is represented as gm = ic/Vth or Transconductance = Collector Current/Threshold Voltage. Collector Current is defined as the direct current that passes through the collector of a transistor & Threshold Voltage is defined as the minimum amount of voltage required by the transistor to turn on.
How to calculate Transconductance of Small Signal Operation of BJT Amplifier?
The Transconductance of small signal operation of BJT Amplifier formula is defined as the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage. Typical values of gm for a small-signal field-effect transistor are 1 to 30 millisiemens is calculated using Transconductance = Collector Current/Threshold Voltage. To calculate Transconductance of Small Signal Operation of BJT Amplifier, you need Collector Current (ic) & Threshold Voltage (Vth). 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.
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