BJT Biasing Circuits: Compare Advantages, Uses & Benefits

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    Biasing Bjt Circuits
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Discussion Overview

The discussion centers around BJT (Bipolar Junction Transistor) biasing circuits, specifically comparing the advantages, uses, and benefits of four types: base biased circuit, voltage divider, emitter bias, and collector feedback bias. Participants explore the need for resources and detailed explanations regarding these biasing methods in the context of an electronics class.

Discussion Character

  • Homework-related
  • Exploratory
  • Technical explanation

Main Points Raised

  • One participant seeks resources to compare the four types of BJT biasing circuits and their advantages and applications.
  • Another participant questions whether the original poster has covered the material in class and suggests that the information should have been included in lectures.
  • A participant moves the discussion to a homework forum, asking for details about the class and available resources.
  • The original poster clarifies that they do not have a textbook and that the relevant material was not covered in their course, which combines electronic devices and circuits.
  • One participant suggests using Wikipedia as a starting point for general information on transistors and amplifiers.
  • The original poster expresses dissatisfaction with the available online resources and reiterates their specific interest in BJT biasing circuits.
  • Another participant shares a link to a resource they found helpful when searching for information on BJT bias circuits.
  • The original poster mentions consulting their professor, who believes that knowing how to perform calculations is sufficient, which the poster disagrees with.
  • The original poster indicates they found a book in a used bookstore and are working on it for more information.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the adequacy of the resources available for understanding BJT biasing circuits. There is a clear disagreement regarding the sufficiency of the material covered in the original poster's class.

Contextual Notes

The discussion highlights limitations in the original poster's course coverage and the lack of specific resources addressing their questions about BJT biasing circuits.

Nomy-the wanderer
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We've base biased circuit, voltage divider, emitter bias, and collector feed back bias...I'm looking for resources, to compare those 4 types, what are the advantages of each type, why is it used, and where...

I know BJT's work in amplifiers, but i need more detail concerning those different biasing circuits.

Thanks.
 
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This sounds like a homework question. We will not be doing your homework for you. If you've covered all of the above mentioned schemes in lab/class then wasn't it covered why each one is used or were you sleeping through that part? When I was in school for electronics those biasing schemes were covered and part of the lecture was which one was used where, and why.
 
Moved to homework forums.

Wanderer, what is the class that you're taking (what level, what title, what subject matter)? What learning resources do you have so far? What is your textbook. As supernova says, you need to show us your work and thinking so far in order for us to help you.
 
No textbook, that part was not covered, I've no resources, it's not homework, I'm having an electronic devices class, diodes, and transistors...That's why I'm asking, it's nothing i know of yet, just some titles.

I'm studying nuclear engineering, we used to have 2 courses, electronic circuits and digital circuits, but now we've all in one, covering the devices we may use, we are not getting deeper into this.
 
You might try wikipedia.org as a starting point. Look up transistors and amplifiers and diodes and such -- there are reasonable introductions to subjects like that at wiki.
 
I've tried that, there's nothing i need there, i want to learn more about the BJT biasing circuits, those 4 types, specifically i thought i asked for that.

I don't need introductions for transistors and diodes, i need the answer of a specific question, I've searched the internet for what i wanted, but i didn't get enough.

So, thanks for the help anyway!
 
Okay. I googled bjt bias circuit and got lots of great hits. Here's one of the first ones:

http://engr.astate.edu/jdg/Electronics/Lab1/09TransistorBiasing.html

If googling bjt bias circuit doesn't work for you, what other learning resources do you have available? When I was in school, there was a textbook that went with each class. If you are learning this all on your own, maybe folks can recommend good textbooks for you to check out in your local technical library.
 
Last edited by a moderator:
Well, i asked the professor, she thinks we only need to know how to make our calculations, which isn't enough.

So that's why i was looking for more details, i found something in a nearby used book store today, I'm working on it...

Thx.
 

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