How to calculate BJT electron flow

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SUMMARY

The calculation of electron flow in a Bipolar Junction Transistor (BJT) involves understanding the role of the base, not the gate, as indicated in the discussion. To accurately determine the number of electrons passing through a BJT, one must consider the forward bias condition and the time interval for the flow. The reference to "Semiconductor Device Modeling with Spice" by Paolo Antognetti and Giuseppe Massobrio provides essential insights into this calculation. The Wikipedia article on BJTs also contains relevant theoretical information.

PREREQUISITES
  • Understanding of Bipolar Junction Transistor (BJT) operation
  • Familiarity with forward bias conditions in semiconductors
  • Knowledge of electron flow concepts in electrical engineering
  • Basic grasp of semiconductor device modeling techniques
NEXT STEPS
  • Study the "Theory and modelling" section of the Wikipedia article on BJTs
  • Read "Semiconductor Device Modeling with Spice" by Paolo Antognetti and Giuseppe Massobrio
  • Explore BJT characteristics and parameters using SPICE simulations
  • Investigate the impact of temperature on BJT electron flow
USEFUL FOR

Electrical engineers, semiconductor physicists, and students studying transistor operation and modeling will benefit from this discussion.

RITESHH KAKKAR
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Hello
How should i calculate number of electrons passing through it
when we apply some gate voltage across it
 

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Is this the article from which you got that image ?
https://en.wikipedia.org/wiki/Bipolar_junction_transistor

Section "Theory and modelling" addresses your question.

in BJT's we call it "Base" not "Gate".

That article should get you started.

Train your search engine. It wants to help you.

old jim
 
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Likes   Reactions: berkeman
RITESHH KAKKAR said:
...number of electrons passing through it...
Wouldn't you need the amount of time over which the electrons are flowing? Maybe you mean "number of electrons/second"?
 
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Hello
I want to count the number of electron that can flow from it at forward bias of bjt
 

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