Transconductance of Small Signal Operation of BJT Amplifier Calculator

✖Collector Current is defined as the direct current that passes through the collector of a transistor.ⓘ Collector Current [i_c]			+10% -10%
✖Threshold Voltage is defined as the minimum amount of voltage required by the transistor to turn on.ⓘ Threshold Voltage [V_th]			+10% -10%

✖Transconductance is defined as an expression of the performance of a bipolar transistor or field-effect transistor.ⓘ Transconductance of Small Signal Operation of BJT Amplifier [g_m]

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Transconductance of Small Signal Operation of BJT Amplifier Solution

STEP 0: Pre-Calculation Summary

Formula Used

Transconductance = Collector Current/Threshold Voltage
g_m = i_c/V_th
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

g_m = i_c/V_th --> 0.023/0.7

Evaluating ... ...

g_m = 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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< Resistance Calculators

Differential Input Resistance of BJT Amplifier given Common-Emitter Current Gain

LaTeX Go Differential Input Resistance = (Common Emitter Current Gain+1)*(2*Emitter Resistance+2*Change in Collector Resistance)

Differential Input Resistance of BJT Amplifier

LaTeX Go Differential Input Resistance = Differential Input Voltage/Base Current

Transconductance of Small Signal Operation of BJT Amplifier

LaTeX Go Transconductance = Collector Current/Threshold Voltage

Differential Input Resistance of BJT Amplifier given Small-Signal Input Resistance

LaTeX Go Differential Input Resistance = 2*Base Emitter Input Resistance

Transconductance of Small Signal Operation of BJT Amplifier Formula

LaTeX Go

Transconductance = Collector Current/Threshold Voltage
g_m = i_c/V_th

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 g_m for a small-signal field-effect transistor are 1 to 30 millisiemens. Transconductance is denoted by g_m 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 (i_c) & Threshold Voltage (V_th) 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 g_m for a small-signal field-effect transistor are 1 to 30 millisiemens and is represented as g_m = i_c/V_th 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 g_m 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 (i_c) & Threshold Voltage (V_th). 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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