Base Current 1 of BJT Calculator

✖Collector current is an amplified output current of a bipolar junction transistor.ⓘ Collector Current [I_c]			+10% -10%
✖Common emitter current gain is influenced by 2 factors: width of base region W, and relative dopings of base region and emitter region. Its range varies from 50-200.ⓘ Common Emitter Current Gain [β]			+10% -10%

✖Base Current is a crucial current of bipolar junction transistor. Without the base current, the transistor cannot turn on.ⓘ Base Current 1 of BJT [I_B]

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Formula

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Base Current 1 of BJT

Formula

`"I"_{"B"} = "I"_{"c"}/"β"`

Example

`"0.076923mA"="5mA"/"65"`

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Base Current 1 of BJT Solution

STEP 0: Pre-Calculation Summary

Formula Used

Base Current = Collector Current/Common Emitter Current Gain
I_B = I_c/β
This formula uses 3 Variables

Variables Used

Base Current - (Measured in Ampere) - Base Current is a crucial current of bipolar junction transistor. Without the base current, the transistor cannot turn on.
Collector Current - (Measured in Ampere) - Collector current is an amplified output current of a bipolar junction transistor.
Common Emitter Current Gain - Common emitter current gain is influenced by 2 factors: width of base region W, and relative dopings of base region and emitter region. Its range varies from 50-200.

STEP 1: Convert Input(s) to Base Unit

Collector Current: 5 Milliampere --> 0.005 Ampere (Check conversion here)
Common Emitter Current Gain: 65 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_B = I_c/β --> 0.005/65

Evaluating ... ...

I_B = 7.69230769230769E-05

STEP 3: Convert Result to Output's Unit

7.69230769230769E-05 Ampere -->0.0769230769230769 Milliampere (Check conversion here)

FINAL ANSWER

0.0769230769230769 ≈ 0.076923 Milliampere <-- Base Current

(Calculation completed in 00.004 seconds)

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< 14 Base Current Calculators

Base Current using Saturation Current in DC

Go Base Current = (Saturation Current/Common Emitter Current Gain)*e^(Base-Collector Voltage/Thermal Voltage)+Saturation Vapour Pressure*e^(Base-Collector Voltage/Thermal Voltage)

Saturation Current using Doping Concentration

Go Saturation Current = (Cross-section Area of Base-Emitter Junction*[Charge-e]*Electron Diffusivity*(Intrinsic Carrier Concentration)^2)/(Width of Base Junction*Doping Concentration of Base)

Short Circuit Current Gain of BJT

Go Short-Circuit Current Gain = (Common-Emitter Current Gain at Low Frequency)/(1+Complex Frequency Variable*(Emitter-Base Capacitance+Collector-Base Junction Capacitance)*Input Resistance)

Drain Current given Device Parameter

Go Drain Current = 1/2*Transconductance*Aspect Ratio*(Effective Voltage-Threshold Voltage)^2*(1+Device Parameter*Voltage between Drain and Source)

Base Current 2 of BJT

Go Base Current = (Saturation Current/Common Emitter Current Gain)*(e^(Base-Emitter Voltage/Thermal Voltage))

Base Current of PNP Transistor using Saturation Current

Go Base Current = (Saturation Current/Common Emitter Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage)

Reference Current of BJT Mirror

Go Reference Current = Collector Current+(2*Collector Current)/Common Emitter Current Gain

Reference Current of BJT Current Mirror

Go Reference Current = (Supply Voltage-Base-Emitter Voltage)/Resistance

Reference Current of BJT Mirror given Collector Current

Go Reference Current = Collector Current*(1+2/Common Emitter Current Gain)

Base Current of PNP Transistor given Emitter Current

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

Base Current of PNP Transistor using Collector Current

Go Base Current = Collector Current/Common Emitter Current Gain

Base Current 1 of BJT

Go Base Current = Collector Current/Common Emitter Current Gain

Base Current of PNP Transistor using Common-Base Current Gain

Go Base Current = (1-Common-Base Current Gain)*Emitter Current

Total Base Current

Go Base Current = Base Current 1+Base Current 2

Base Current 1 of BJT Formula

Base Current = Collector Current/Common Emitter Current Gain
I_B = I_c/β

What are the components of base current?

Base current 1 is due to the holes injected from the base region into the emitter region. This current component is proportional to e^V_BE /V_T.

How to Calculate Base Current 1 of BJT?

Base Current 1 of BJT calculator uses Base Current = Collector Current/Common Emitter Current Gain to calculate the Base Current, The Base Current 1 of BJT is due to holes that have to be supplied by the external circuit in order to replace the holes lost from the base through the recombination process. Base Current is denoted by I_B symbol.

How to calculate Base Current 1 of BJT using this online calculator? To use this online calculator for Base Current 1 of BJT, enter Collector Current (I_c) & Common Emitter Current Gain (β) and hit the calculate button. Here is how the Base Current 1 of BJT calculation can be explained with given input values -> 76.92308 = 0.005/65.

FAQ

What is Base Current 1 of BJT?

The Base Current 1 of BJT is due to holes that have to be supplied by the external circuit in order to replace the holes lost from the base through the recombination process and is represented as I_B = I_c/β or Base Current = Collector Current/Common Emitter Current Gain. Collector current is an amplified output current of a bipolar junction transistor & Common emitter current gain is influenced by 2 factors: width of base region W, and relative dopings of base region and emitter region. Its range varies from 50-200.

How to calculate Base Current 1 of BJT?

The Base Current 1 of BJT is due to holes that have to be supplied by the external circuit in order to replace the holes lost from the base through the recombination process is calculated using Base Current = Collector Current/Common Emitter Current Gain. To calculate Base Current 1 of BJT, you need Collector Current (I_c) & Common Emitter Current Gain (β). With our tool, you need to enter the respective value for Collector Current & Common Emitter Current Gain 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 Base Current?

In this formula, Base Current uses Collector Current & Common Emitter Current Gain. We can use 7 other way(s) to calculate the same, which is/are as follows -

Base Current = (Saturation Current/Common Emitter Current Gain)*(e^(Base-Emitter Voltage/Thermal Voltage))
Base Current = (Saturation Current/Common Emitter Current Gain)*e^(Base-Collector Voltage/Thermal Voltage)+Saturation Vapour Pressure*e^(Base-Collector Voltage/Thermal Voltage)
Base Current = Base Current 1+Base Current 2
Base Current = Collector Current/Common Emitter Current Gain
Base Current = (Saturation Current/Common Emitter Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage)
Base Current = (1-Common-Base Current Gain)*Emitter Current
Base Current = Emitter Current/(Common Emitter Current Gain+1)

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