First Emitter Current of BJT Differential Amplifier Calculator

✖Current is the rate of flow of charge through a conducting material.ⓘ Current [i]			+10% -10%
✖Differential Input Voltage is defined as signal input circuit where SIGNAL LO and SIGNAL HI are electrically floating with respect to ANALOG GROUND.ⓘ Differential Input Voltage [V_id]			+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%

✖First Emitter Current is the current in emitter of first of two transistors in a large signal operation configuration.ⓘ First Emitter Current of BJT Differential Amplifier [i_E1]

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First Emitter Current of BJT Differential Amplifier Solution

STEP 0: Pre-Calculation Summary

Formula Used

First Emitter Current = Current/(1+e^((-Differential Input Voltage)/Threshold Voltage))
i_E1 = i/(1+e^((-V_id)/V_th))
This formula uses 1 Constants, 4 Variables

Constants Used

e - Napier's constant Value Taken As 2.71828182845904523536028747135266249

Variables Used

First Emitter Current - (Measured in Ampere) - First Emitter Current is the current in emitter of first of two transistors in a large signal operation configuration.
Current - (Measured in Ampere) - Current is the rate of flow of charge through a conducting material.
Differential Input Voltage - (Measured in Volt) - Differential Input Voltage is defined as signal input circuit where SIGNAL LO and SIGNAL HI are electrically floating with respect to ANALOG GROUND.
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

Current: 550 Milliampere --> 0.55 Ampere (Check conversion here)
Differential Input Voltage: 7.5 Volt --> 7.5 Volt No Conversion Required
Threshold Voltage: 0.7 Volt --> 0.7 Volt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

i_E1 = i/(1+e^((-V_id)/V_th)) --> 0.55/(1+e^((-7.5)/0.7))

Evaluating ... ...

i_E1 = 0.549987776435343

STEP 3: Convert Result to Output's Unit

0.549987776435343 Ampere -->549.987776435343 Milliampere (Check conversion here)

FINAL ANSWER

549.987776435343 ≈ 549.9878 Milliampere <-- First Emitter Current

(Calculation completed in 00.004 seconds)

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Birsa Institute of Technology (BIT), Sindri

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< Current and Voltage Calculators

First Collector Current of BJT Differential Amplifier

LaTeX Go First Collector Current = (Common Base Current Gain*Current)/(1+e^((-Differential Input Voltage)/Threshold Voltage))

Maximum Input Common-Mode Range Voltage of BJT Differential Amplifier

LaTeX Go Maximum Common Mode Range = Input Voltage+(Common Base Current Gain*0.5*Current*Collector Resistance)

First Emitter Current of BJT Differential Amplifier

LaTeX Go First Emitter Current = Current/(1+e^((-Differential Input Voltage)/Threshold Voltage))

Collector Current of BJT Differential Amplifier given Emitter Current

LaTeX Go Collector Current = Common Base Current Gain*Emitter Current

First Emitter Current of BJT Differential Amplifier Formula

LaTeX Go

First Emitter Current = Current/(1+e^((-Differential Input Voltage)/Threshold Voltage))
i_E1 = i/(1+e^((-V_id)/V_th))

What are the three currents in a BJT?

Since the physical construction of the transistor determines the electrical relationship between these three currents, (I_b), (I_c) and (I_e), any small change in the base current (I_b), will result in a much larger change in the collector current (I_c).

How to Calculate First Emitter Current of BJT Differential Amplifier?

First Emitter Current of BJT Differential Amplifier calculator uses First Emitter Current = Current/(1+e^((-Differential Input Voltage)/Threshold Voltage)) to calculate the First Emitter Current, The First emitter current of BJT differential amplifier formula is the combination of the collector AND the base current combined, the load resistance in this type of transistor configuration also has both the collector current and the input current of the base flowing through it. First Emitter Current is denoted by i_E1 symbol.

How to calculate First Emitter Current of BJT Differential Amplifier using this online calculator? To use this online calculator for First Emitter Current of BJT Differential Amplifier, enter Current (i), Differential Input Voltage (V_id) & Threshold Voltage (V_th) and hit the calculate button. Here is how the First Emitter Current of BJT Differential Amplifier calculation can be explained with given input values -> 549987.8 = 0.55/(1+e^((-7.5)/0.7)).

FAQ

What is First Emitter Current of BJT Differential Amplifier?

The First emitter current of BJT differential amplifier formula is the combination of the collector AND the base current combined, the load resistance in this type of transistor configuration also has both the collector current and the input current of the base flowing through it and is represented as i_E1 = i/(1+e^((-V_id)/V_th)) or First Emitter Current = Current/(1+e^((-Differential Input Voltage)/Threshold Voltage)). Current is the rate of flow of charge through a conducting material, Differential Input Voltage is defined as signal input circuit where SIGNAL LO and SIGNAL HI are electrically floating with respect to ANALOG GROUND & Threshold Voltage is defined as the minimum amount of voltage required by the transistor to turn on.

How to calculate First Emitter Current of BJT Differential Amplifier?

The First emitter current of BJT differential amplifier formula is the combination of the collector AND the base current combined, the load resistance in this type of transistor configuration also has both the collector current and the input current of the base flowing through it is calculated using First Emitter Current = Current/(1+e^((-Differential Input Voltage)/Threshold Voltage)). To calculate First Emitter Current of BJT Differential Amplifier, you need Current (i), Differential Input Voltage (V_id) & Threshold Voltage (V_th). With our tool, you need to enter the respective value for Current, Differential Input Voltage & 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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