Collector Current of BJT Differential Amplifier given Emitter Resistance Calculator

✖Common Base Current Gain is defined as the change in collector current divided by the change in emitter current when the base-to-collector voltage is constant.ⓘ Common Base Current Gain [α]			+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%
✖Emitter Resistance is defined as the output impedance of a current source transistor.ⓘ Emitter Resistance [R_E]			+10% -10%

✖Collector Current is defined as the direct current that passes through the collector of a transistor.ⓘ Collector Current of BJT Differential Amplifier given Emitter Resistance [i_c]

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Formula

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Collector Current of BJT Differential Amplifier given Emitter Resistance

Formula

`"i"_{"c"} = ("α"*"V"_{"id"})/(2*"R"_{"E"})`

Example

`"23.4375mA"=("1.7"*"7.5V")/(2*"0.272kΩ")`

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Collector Current of BJT Differential Amplifier given Emitter Resistance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Collector Current = (Common Base Current Gain*Differential Input Voltage)/(2*Emitter Resistance)
i_c = (α*V_id)/(2*R_E)
This formula uses 4 Variables

Variables Used

Collector Current - (Measured in Ampere) - Collector Current is defined as the direct current that passes through the collector of a transistor.
Common Base Current Gain - Common Base Current Gain is defined as the change in collector current divided by the change in emitter current when the base-to-collector voltage is constant.
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.
Emitter Resistance - (Measured in Ohm) - Emitter Resistance is defined as the output impedance of a current source transistor.

STEP 1: Convert Input(s) to Base Unit

Common Base Current Gain: 1.7 --> No Conversion Required
Differential Input Voltage: 7.5 Volt --> 7.5 Volt No Conversion Required
Emitter Resistance: 0.272 Kilohm --> 272 Ohm (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

i_c = (α*V_id)/(2*R_E) --> (1.7*7.5)/(2*272)

Evaluating ... ...

i_c = 0.0234375

STEP 3: Convert Result to Output's Unit

0.0234375 Ampere -->23.4375 Milliampere (Check conversion here)

FINAL ANSWER

23.4375 Milliampere <-- Collector Current

(Calculation completed in 00.004 seconds)

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< 11 Current and Voltage Calculators

First Collector Current of BJT Differential Amplifier

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

Second Collector Current of BJT Differential Amplifier

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

Maximum Input Common-Mode Range Voltage of BJT Differential Amplifier

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

Emitter Current of BJT Differential Amplifier

Go Emitter Current = Differential Input Voltage/(2*Base Emitter Resistance+2*Collector Emitter Resistance)

Base Current of Input Differential BJT Amplifier given Emitter Resistance

Go Base Current = Differential Input Voltage/(2*Emitter Resistance*(Common Emitter Current Gain+1))

Collector Current of BJT Differential Amplifier given Emitter Resistance

Go Collector Current = (Common Base Current Gain*Differential Input Voltage)/(2*Emitter Resistance)

Second Emitter Current of BJT Differential Amplifier

Go Second Emitter Current = Current/(1+e^((Differential Input Voltage)/Threshold Voltage))

First Emitter Current of BJT Differential Amplifier

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

Input Bias Current of Differential Amplifier

Go Input Bias Current = Current/(2*(Common Emitter Current Gain+1))

Base Current of Input Differential BJT Amplifier

Go Base Current = Emitter Current/(Common Emitter Current Gain+1)

Collector Current of BJT Differential Amplifier given Emitter Current

Go Collector Current = Common Base Current Gain*Emitter Current

Collector Current of BJT Differential Amplifier given Emitter Resistance Formula

Collector Current = (Common Base Current Gain*Differential Input Voltage)/(2*Emitter Resistance)
i_c = (α*V_id)/(2*R_E)

What is the collector current of an amplifier?

The collector current of a class C amplifier is a half-sine wave. Class C power amplifier is a type of amplifier where the active element (transistor) conduct for less than one-half cycle of the input signal. Less than one-half cycle means the conduction angle is less than 180° and its typical value is 80° to 120°.

How to Calculate Collector Current of BJT Differential Amplifier given Emitter Resistance?

Collector Current of BJT Differential Amplifier given Emitter Resistance calculator uses Collector Current = (Common Base Current Gain*Differential Input Voltage)/(2*Emitter Resistance) to calculate the Collector Current, The Collector current of BJT differential amplifier given emitter resistance formula is the current of two transistors which are determined by the input differential voltage and biasing scheme. Collector Current is denoted by i_c symbol.

How to calculate Collector Current of BJT Differential Amplifier given Emitter Resistance using this online calculator? To use this online calculator for Collector Current of BJT Differential Amplifier given Emitter Resistance, enter Common Base Current Gain (α), Differential Input Voltage (V_id) & Emitter Resistance (R_E) and hit the calculate button. Here is how the Collector Current of BJT Differential Amplifier given Emitter Resistance calculation can be explained with given input values -> 23437.5 = (1.7*7.5)/(2*272).

FAQ

What is Collector Current of BJT Differential Amplifier given Emitter Resistance?

The Collector current of BJT differential amplifier given emitter resistance formula is the current of two transistors which are determined by the input differential voltage and biasing scheme and is represented as i_c = (α*V_id)/(2*R_E) or Collector Current = (Common Base Current Gain*Differential Input Voltage)/(2*Emitter Resistance). Common Base Current Gain is defined as the change in collector current divided by the change in emitter current when the base-to-collector voltage is constant, Differential Input Voltage is defined as signal input circuit where SIGNAL LO and SIGNAL HI are electrically floating with respect to ANALOG GROUND & Emitter Resistance is defined as the output impedance of a current source transistor.

How to calculate Collector Current of BJT Differential Amplifier given Emitter Resistance?

The Collector current of BJT differential amplifier given emitter resistance formula is the current of two transistors which are determined by the input differential voltage and biasing scheme is calculated using Collector Current = (Common Base Current Gain*Differential Input Voltage)/(2*Emitter Resistance). To calculate Collector Current of BJT Differential Amplifier given Emitter Resistance, you need Common Base Current Gain (α), Differential Input Voltage (V_id) & Emitter Resistance (R_E). With our tool, you need to enter the respective value for Common Base Current Gain, Differential 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.

How many ways are there to calculate Collector Current?

In this formula, Collector Current uses Common Base Current Gain, Differential Input Voltage & Emitter Resistance. We can use 1 other way(s) to calculate the same, which is/are as follows -

Collector Current = Common Base Current Gain*Emitter Current

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