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Emitter Injection Efficiency Formula

GoEmitter Injection Efficiency given Doping Constants Formula

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Emmitter Injection Efficiency is the ratio of the electron current flowing in the emitter to the total current across the emitter base junction. Check FAQs

γ = \frac{I E}{I Ee + I Eh}

γ - Emmitter Injection Efficiency?I_E - Emitter Current?I_Ee - Emitter Current due to Electrons?I_Eh - Emitter Current due to Holes?

Emitter Injection Efficiency Example

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Here is how the Emitter Injection Efficiency equation looks like with Values.

Here is how the Emitter Injection Efficiency equation looks like with Units.

Here is how the Emitter Injection Efficiency equation looks like.

0.7273 = \frac{0.008}{0.005 + 0.006}

0.7273 = \frac{0.008A}{0.005A + 0.006A}

0.7273 = \frac{0.008}{0.005 + 0.006}

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Emitter Injection Efficiency Solution

Follow our step by step solution on how to calculate Emitter Injection Efficiency?

FIRST Step Consider the formula

γ = \frac{I E}{I Ee + I Eh}

Next Step Substitute values of Variables

∴

γ = \frac{0.008A}{0.005A + 0.006A}

Next Step Prepare to Evaluate

∴

γ = \frac{0.008}{0.005 + 0.006}

Next Step Evaluate

∴

γ = 0.727272727272727

LAST Step Rounding Answer

∴

γ = 0.7273

Emitter Injection Efficiency Formula Elements

Variables

Emmitter Injection Efficiency

Emmitter Injection Efficiency is the ratio of the electron current flowing in the emitter to the total current across the emitter base junction.

Symbol: γ

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Emmitter Injection Efficiency

Emitter Current

Emitter Current refers to the current flowing between the emitter and base terminals of the transistor when it's in operation.

Symbol: I_E

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Emitter Current

Emitter Current due to Electrons

Emitter Current due to Electrons is the maximum possible current of majority carriers flowing into the emitter.

Symbol: I_Ee

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Emitter Current due to Electrons

Emitter Current due to Holes

Emitter Current due to Holes is the maximum possible current of minority carriers injected into the base.

Symbol: I_Eh

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Emitter Current due to Holes

Other Formulas to find Emmitter Injection Efficiency

Go Emitter Injection Efficiency given Doping Constants

γ = \frac{N dn}{N dn + N dp}

Other formulas in Bipolar IC Fabrication category

Go Impurity with Intrinsic Concentration

n i = \sqrt{\frac{n e \cdot p}{t o}}

Go Ohmic Conductivity of Impurity

σ = q \cdot (μ n \cdot n e + μ p \cdot p)

Go Breakout Voltage of Collector Emitter

V ce = \frac{V cb}{{(i g)}^{\frac{1}{n}}}

Go Conductivity of N-Type

σ = q \cdot (μ n \cdot N d + μ p \cdot (\frac{{n i}^{2}}{N d}))

How to Evaluate Emitter Injection Efficiency?

Emitter Injection Efficiency evaluator uses Emmitter Injection Efficiency = Emitter Current/(Emitter Current due to Electrons+Emitter Current due to Holes) to evaluate the Emmitter Injection Efficiency, The Emitter Injection Efficiency formula is defined as ratio of the emitter current to the total current flowing into the base. Emmitter Injection Efficiency is denoted by γ symbol.

How to evaluate Emitter Injection Efficiency using this online evaluator? To use this online evaluator for Emitter Injection Efficiency, enter Emitter Current (I_E), Emitter Current due to Electrons (I_Ee) & Emitter Current due to Holes (I_Eh) and hit the calculate button.

FAQs on Emitter Injection Efficiency

What is the formula to find Emitter Injection Efficiency?

The formula of Emitter Injection Efficiency is expressed as Emmitter Injection Efficiency = Emitter Current/(Emitter Current due to Electrons+Emitter Current due to Holes). Here is an example- 0.727273 = 0.008/(0.005+0.006).

How to calculate Emitter Injection Efficiency?

With Emitter Current (I_E), Emitter Current due to Electrons (I_Ee) & Emitter Current due to Holes (I_Eh) we can find Emitter Injection Efficiency using the formula - Emmitter Injection Efficiency = Emitter Current/(Emitter Current due to Electrons+Emitter Current due to Holes).

What are the other ways to Calculate Emmitter Injection Efficiency?

Here are the different ways to Calculate Emmitter Injection Efficiency-

Emmitter Injection Efficiency=Doping on N-side/(Doping on N-side+Doping on P-side)

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Emitter Injection Efficiency Formula

​GoEmitter Injection Efficiency given Doping Constants Formula

Emitter Injection Efficiency Example

Emitter Injection Efficiency Solution

Emitter Injection Efficiency Formula Elements

Other Formulas to find Emmitter Injection Efficiency

Other formulas in Bipolar IC Fabrication category

How to Evaluate Emitter Injection Efficiency?

FAQs on Emitter Injection Efficiency

Variable Name

GoEmitter Injection Efficiency given Doping Constants Formula