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Emitter current of the common-base amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
emitter_current = -(Input voltage/Emitter Resistance)
Ie = -(Vi/re)
This formula uses 2 Variables
Variables Used
Input voltage - Input voltage is the voltage supplied to the device (Measured in Volt)
Emitter Resistance - Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor. (Measured in Ohm)
STEP 1: Convert Input(s) to Base Unit
Input voltage: 1 Volt --> 1 Volt No Conversion Required
Emitter Resistance: 50 Ohm --> 50 Ohm No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Ie = -(Vi/re) --> -(1/50)
Evaluating ... ...
Ie = -0.02
STEP 3: Convert Result to Output's Unit
-0.02 Ampere --> No Conversion Required
FINAL ANSWER
-0.02 Ampere <-- Emitter current
(Calculation completed in 00.007 seconds)

7 Common-base amplifier Calculators

Overall voltage gain of the common-base amplifier
overall_voltage_gain = Common emitter current gain*(Input resistance/(Input resistance+Signal Resistance))*((1/Total resistance in collector+1/Load resistance)/Emitter Resistance) Go
Overall voltage gain of the common-base amplifier in terms of transconductance
overall_voltage_gain = (Input resistance/(Input resistance+Signal Resistance))*MOSFET Transconductance*(1/Total resistance in collector+1/Load resistance) Go
Output voltage of the common-base amplifier
output_voltage = -(Common emitter current gain*Emitter current*(1/Load Resistance+1/Load resistance)) Go
Input voltage of the common-base amplifier
input_voltage = Small-signal voltage*(Input resistance/(Input resistance+Signal Resistance)) Go
Input resistance of the common-base amplifier in terms of emitter resistance
resistance_input = (1/Total resistance in the emitter+1/Emitter Resistance) Go
Emitter current of the common-base amplifier
emitter_current = -(Input voltage/Emitter Resistance) Go
Input resistance of the common-base amplifier
resistance_input = 1/MOSFET Transconductance Go

Emitter current of the common-base amplifier Formula

emitter_current = -(Input voltage/Emitter Resistance)
Ie = -(Vi/re)

What is the advantage of a common base amplifier?

The common base circuit works best as a current buffer. It can take an input current at a low input impedance, and deliver nearly that same current to a higher impedance output.

How to Calculate Emitter current of the common-base amplifier?

Emitter current of the common-base amplifier calculator uses emitter_current = -(Input voltage/Emitter Resistance) to calculate the Emitter current, The Emitter current of the common-base amplifier formula is defined as the amplified output current of a bipolar junction transistor. There are several ways to find the emitter current, Ie, of a transistor. Emitter current and is denoted by Ie symbol.

How to calculate Emitter current of the common-base amplifier using this online calculator? To use this online calculator for Emitter current of the common-base amplifier, enter Input voltage (Vi) and Emitter Resistance (re) and hit the calculate button. Here is how the Emitter current of the common-base amplifier calculation can be explained with given input values -> -0.02 = -(1/50).

FAQ

What is Emitter current of the common-base amplifier?
The Emitter current of the common-base amplifier formula is defined as the amplified output current of a bipolar junction transistor. There are several ways to find the emitter current, Ie, of a transistor and is represented as Ie = -(Vi/re) or emitter_current = -(Input voltage/Emitter Resistance). Input voltage is the voltage supplied to the device and Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.
How to calculate Emitter current of the common-base amplifier?
The Emitter current of the common-base amplifier formula is defined as the amplified output current of a bipolar junction transistor. There are several ways to find the emitter current, Ie, of a transistor is calculated using emitter_current = -(Input voltage/Emitter Resistance). To calculate Emitter current of the common-base amplifier, you need Input voltage (Vi) and Emitter Resistance (re). With our tool, you need to enter the respective value for Input voltage and Emitter Resistance 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 Emitter current?
In this formula, Emitter current uses Input voltage and Emitter Resistance. We can use 7 other way(s) to calculate the same, which is/are as follows -
  • resistance_input = 1/MOSFET Transconductance
  • input_voltage = Small-signal voltage*(Input resistance/(Input resistance+Signal Resistance))
  • emitter_current = -(Input voltage/Emitter Resistance)
  • resistance_input = (1/Total resistance in the emitter+1/Emitter Resistance)
  • output_voltage = -(Common emitter current gain*Emitter current*(1/Load Resistance+1/Load resistance))
  • overall_voltage_gain = Common emitter current gain*(Input resistance/(Input resistance+Signal Resistance))*((1/Total resistance in collector+1/Load resistance)/Emitter Resistance)
  • overall_voltage_gain = (Input resistance/(Input resistance+Signal Resistance))*MOSFET Transconductance*(1/Total resistance in collector+1/Load resistance)
Where is the Emitter current of the common-base amplifier calculator used?
Among many, Emitter current of the common-base amplifier calculator is widely used in real life applications like {FormulaUses}. Here are few more real life examples -
{FormulaExamplesList}
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