Voltage Divider Bias: Removing Electrons from the Base

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SUMMARY

The discussion centers on the concept of voltage divider bias in transistors, specifically addressing the flow of electrons in relation to the base current. It is established that for current to flow through the transistor, electrons must be drawn from the base, which is facilitated by applying a positive voltage to the base terminal. The participants clarify that when the base-emitter junction is forward biased, holes in the base are filled by electrons, creating a negatively charged base that initially blocks electron flow from the collector. The conversation emphasizes the necessity of understanding electron flow over conventional current flow to grasp the principles of transistor operation.

PREREQUISITES
  • Understanding of NPN transistor operation
  • Knowledge of voltage divider circuits
  • Familiarity with electron flow versus conventional current flow
  • Basic principles of semiconductor physics
NEXT STEPS
  • Study the operation of NPN transistors in detail
  • Learn about voltage divider biasing techniques
  • Explore the concepts of forward and reverse bias in semiconductor junctions
  • Investigate the role of base current in transistor amplification
USEFUL FOR

Electronics students, electrical engineers, and hobbyists interested in understanding transistor behavior and biasing techniques in amplifier circuits.

  • #31
sophiecentaur said:
I have my own mental image ('profile') of this guy. There are lots like him and they all want it 'their way'. They all display scientific naivite, then arrogance followed by petulance and then rudeness. If they drive in the same way - they will likely get punched on the nose by some neanderthal who they will manage to upset.
On the other hand, WE manage to be SOOO civilised about it!
My only consolation is that they mostly grow up into reasonable adults in the end.

LOL. Yeah, we can't educate EVERYONE, we need the neanderthals to remind some folks they are not 'all that'. Seriously though, if sudar comes back with something besides 'you haven't told me the way I want to hear it', I'll have more input if it's accepted.
 
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  • #32
But of course.
I never hold a grudge.
 

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