Emitter Current of Common-Base Amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
Emitter Current = Input Voltage/Emitter Resistance
ie = Vin/Re
This formula uses 3 Variables
Variables Used
Emitter Current - (Measured in Ampere) - Emitter current is the amplified output current of a bipolar junction transistor.
Input Voltage - (Measured in Volt) - Input voltage is the voltage supplied to the device.
Emitter Resistance - (Measured in Ohm) - Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.
STEP 1: Convert Input(s) to Base Unit
Input Voltage: 2.5 Volt --> 2.5 Volt No Conversion Required
Emitter Resistance: 0.067 Kilohm --> 67 Ohm (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
ie = Vin/Re --> 2.5/67
Evaluating ... ...
ie = 0.0373134328358209
STEP 3: Convert Result to Output's Unit
0.0373134328358209 Ampere -->37.3134328358209 Milliampere (Check conversion here)
FINAL ANSWER
37.3134328358209 37.31343 Milliampere <-- Emitter Current
(Calculation completed in 00.004 seconds)

Credits

Created by Payal Priya
Birsa Institute of Technology (BIT), Sindri
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Verified by Urvi Rathod
Vishwakarma Government Engineering College (VGEC), Ahmedabad
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8 Common-Base Amplifier Calculators

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)))
Total Current Gain with respect to Voltage Gain
Go Common Base Current Gain = Overall Voltage Gain/(Collector Resistance/Emitter Resistance*(Input Resistance/(Input Resistance+Signal Resistance)))
Negative Voltage Gain from Base to Collector
Go Negative Voltage Gain = -Common Base Current Gain*(Collector Resistance/Emitter Resistance)
Common Base Current Gain
Go Common Base Current Gain = (Voltage Gain*Emitter Resistance/Collector Resistance)
Input Impedance of Common-Base Amplifier
Go Input Impedance = (1/Emitter Resistance+1/Small Signal Input Resistance)^(-1)
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
Voltage Gain of Common-Base Amplifier
Go Voltage Gain = Collector Voltage/Emitter Voltage

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

Emitter Current of Common-Base Amplifier Formula

Emitter Current = Input Voltage/Emitter Resistance
ie = Vin/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 Common-Base Amplifier?

Emitter Current of Common-Base Amplifier calculator uses Emitter Current = Input Voltage/Emitter Resistance to calculate the Emitter Current, The Emitter current of common-base Amplifier is the current flowing from the emitter terminal to the base terminal of the transistor in the amplifier circuit. Emitter Current is denoted by ie symbol.

How to calculate Emitter Current of Common-Base Amplifier using this online calculator? To use this online calculator for Emitter Current of Common-Base Amplifier, enter Input Voltage (Vin) & Emitter Resistance (Re) and hit the calculate button. Here is how the Emitter Current of Common-Base Amplifier calculation can be explained with given input values -> 37313.43 = 2.5/67.

FAQ

What is Emitter Current of Common-Base Amplifier?
The Emitter current of common-base Amplifier is the current flowing from the emitter terminal to the base terminal of the transistor in the amplifier circuit and is represented as ie = Vin/Re or Emitter Current = Input Voltage/Emitter Resistance. Input voltage is the voltage supplied to the device & Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.
How to calculate Emitter Current of Common-Base Amplifier?
The Emitter current of common-base Amplifier is the current flowing from the emitter terminal to the base terminal of the transistor in the amplifier circuit is calculated using Emitter Current = Input Voltage/Emitter Resistance. To calculate Emitter Current of Common-Base Amplifier, you need Input Voltage (Vin) & Emitter Resistance (Re). With our tool, you need to enter the respective value for Input Voltage & Emitter Resistance 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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