Total Emitter Resistance of Emitter Follower Calculator

✖Base resistance is a measure of the opposition to current flow in an electrical circuit.ⓘ Base Resistance [R_b]			+10% -10%
✖High Frequency Constant refers to a fixed resistance value that is used to define the input impedance of the amplifier.ⓘ High Frequency Constant [h_fc]			+10% -10%

✖Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.ⓘ Total Emitter Resistance of Emitter Follower [R_e]

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Total Emitter Resistance of Emitter Follower Solution

STEP 0: Pre-Calculation Summary

Formula Used

Emitter Resistance = Base Resistance/High Frequency Constant
R_e = R_b/h_fc
This formula uses 3 Variables

Variables Used

Emitter Resistance - (Measured in Ohm) - Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.
Base Resistance - (Measured in Ohm) - Base resistance is a measure of the opposition to current flow in an electrical circuit.
High Frequency Constant - High Frequency Constant refers to a fixed resistance value that is used to define the input impedance of the amplifier.

STEP 1: Convert Input(s) to Base Unit

Base Resistance: 1.213 Kilohm --> 1213 Ohm (Check conversion here)
High Frequency Constant: 16.89 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_e = R_b/h_fc --> 1213/16.89

Evaluating ... ...

R_e = 71.8176435760805

STEP 3: Convert Result to Output's Unit

71.8176435760805 Ohm -->0.0718176435760805 Kilohm (Check conversion here)

FINAL ANSWER

0.0718176435760805 ≈ 0.071818 Kilohm <-- Emitter Resistance

(Calculation completed in 00.021 seconds)

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

Payal Priya has created this Calculator and 600+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< Emitter Follower Calculators

Output Resistance of Emitter Follower

LaTeX Go Finite Resistance = (1/Load Resistance+1/Small Signal Voltage+1/Emitter Resistance)+(1/Base Impedance+1/Signal Resistance)/(Collector Base Current Gain+1)

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LaTeX Go Collector Current = Saturation Current*e^(Voltage across Base Emitter Junction/Threshold Voltage)

Saturation Current of Emitter Follower

LaTeX Go Saturation Current = Collector Current/e^(Voltage across Base Emitter Junction/Threshold Voltage)

Input Resistance of Emitter Follower

LaTeX Go Input Resistance = 1/(1/Signal Resistance in Base+1/Base Resistance)

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Equivalent Resistance of Cascode Amplifier

LaTeX Go Resistance between Drain and Ground = (1/Finite Output Resistance of Transistor 1+1/Input Resistance)^-1

Total Emitter Resistance of Emitter Follower Formula

LaTeX Go

Emitter Resistance = Base Resistance/High Frequency Constant
R_e = R_b/h_fc

What is meant by emitter follower?

Emitter follower is a case of the negative current feedback circuit. This is mostly used as a last-stage amplifier in signal generator circuits. The important features of Emitter Follower are − It has high input impedance. It has low output impedance.

How to Calculate Total Emitter Resistance of Emitter Follower?

Total Emitter Resistance of Emitter Follower calculator uses Emitter Resistance = Base Resistance/High Frequency Constant to calculate the Emitter Resistance, Total Emitter Resistance of Emitter Follower refers to the opposition to current flow in an active device, such as a transistor, when it is in the emitter region. Emitter Resistance is denoted by R_e symbol.

How to calculate Total Emitter Resistance of Emitter Follower using this online calculator? To use this online calculator for Total Emitter Resistance of Emitter Follower, enter Base Resistance (R_b) & High Frequency Constant (h_fc) and hit the calculate button. Here is how the Total Emitter Resistance of Emitter Follower calculation can be explained with given input values -> 7.2E-5 = 1213/16.89.

FAQ

What is Total Emitter Resistance of Emitter Follower?

Total Emitter Resistance of Emitter Follower refers to the opposition to current flow in an active device, such as a transistor, when it is in the emitter region and is represented as R_e = R_b/h_fc or Emitter Resistance = Base Resistance/High Frequency Constant. Base resistance is a measure of the opposition to current flow in an electrical circuit & High Frequency Constant refers to a fixed resistance value that is used to define the input impedance of the amplifier.

How to calculate Total Emitter Resistance of Emitter Follower?

Total Emitter Resistance of Emitter Follower refers to the opposition to current flow in an active device, such as a transistor, when it is in the emitter region is calculated using Emitter Resistance = Base Resistance/High Frequency Constant. To calculate Total Emitter Resistance of Emitter Follower, you need Base Resistance (R_b) & High Frequency Constant (h_fc). With our tool, you need to enter the respective value for Base Resistance & High Frequency Constant 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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