Voltage Divider Bias: Removing Electrons from the Base

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Discussion Overview

The discussion revolves around the concept of voltage divider bias in transistors, specifically focusing on the movement of electrons within the transistor's base region and its implications for current flow. Participants explore the relationship between electron movement and conventional current, as well as the conditions necessary for current to flow through the transistor.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant asserts that in voltage divider bias, electrons are not drawn from the base, questioning how current can flow through the transistor without this process.
  • Another participant challenges the claim that there is no base current in an amplifier set up with voltage divider bias, suggesting that electron movement and conventional current are equivalent.
  • A participant emphasizes the importance of electron flow, arguing that the base must lose electrons to allow current to flow from the collector to the emitter.
  • There is a discussion about the role of voltage at the base, with one participant stating that a positive voltage is necessary to attract electrons from the base, while others argue that the voltage divider provides sufficient positive voltage.
  • Some participants reference the sub-atomic structure of the transistor and the flow of electrons, indicating a need for clarity on how these concepts relate to the operation of the transistor.
  • One participant provides a specific example involving voltage values to illustrate the conditions under which current flows in the transistor.

Areas of Agreement / Disagreement

Participants express differing views on the necessity of drawing electrons from the base for current flow, with no consensus reached on the interpretation of electron movement versus conventional current. The discussion remains unresolved regarding the conditions under which current can flow through the transistor.

Contextual Notes

Limitations include varying interpretations of voltage levels at the base and the assumptions about electron flow versus conventional current. The discussion also reflects differing levels of understanding regarding the operation of transistors and the implications of voltage divider bias.

  • #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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