Different Operating Regions of Bipolar Junction Transistors (BJTs) | Intermediate Electronics
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- เผยแพร่เมื่อ 7 ก.ค. 2020
- Link to written tutorial: www.circuitbread.com/tutorial...
If the different operating regions of a BJT or bipolar junction transistor ever confuses you or you get them mixed up, you're not alone. Besides having different names for the same regions and names that may seem counterintuitive at first, it's not surprising that it can confuse so many people. We try to demystify this topic by explaining the reasons behind the different names, taking an in-depth dive into a BJT's current/voltage curves, and briefly mentioning the roles each operating region typically fills. If you find this interesting, subscribe to the CircuitBread channel for more videos on beginner and intermediate electronics!
Table of Contents
0:16 Overview of a BJT and how it works
1:51 Overview of the regions
2:29 Breakdown region
3:09 Cutoff region
3:36 Saturation region
4:49 Active region
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Hi all! Hope you're having a wonderful day. I'm going to drop the link to the written tutorial here in case it's easier for you to find it: www.circuitbread.com/tutorials/different-regions-of-bjt-operation Take care!
thank you so much for these wonderful tutorials... so crisp, concise, to the point and hella engaging. I love all your videos..!! for many students and myself, these videos help a lot lot in revising for our exams!
In 7 minutes and 29 seconds you made me wrap my head around what my professors failed to in 2 semesters. Thank you so much for the video!
One of the hardest parts of learning how to use bjts properly, explained in a concise and easy to follow manner, good job.
You just explained my whole semester in 7 mins and 29 secs. Thank you!
Excellent with written notes, fabulous!
Excellent with written notes, fabulous!!!
never understood operation regions this well... thanks a lot!!
Best explanation of bjt regions ever!!!. Thank you.
This is a really good explaination
Just began to learn about electronics and was building a breadboard circuit that I found in one of the books I have been reading. But have been puzzled for DAYS as to why the circuit I created using a 2N2222 transistor allowed current to flow freely from Collector to Emitter no matter what voltage I put on the Base. After watching your video I now suspect that my Vce is in fact in the Break Down region! You are the first and only one who has pointed this out after researching this issue for days! Thank you!
Excellent explanation, thanks a lot!
I finally get idea of the four operation region from the IV curve, before that, I only knew how to draw it with my poor memory, thanks!!!
Very well explained
Lovely and informative
Well explained and very helpful thank you
I was struggling to understand these types of regions now I fully understood them. Thank you for the great video :)
You're welcome! Honestly, I still come back to this tutorial on occasion for a refresher 😂
Why this video only has 500 views? It explains BJT very well!
And now it's 50K!
Best explanation I’ve seen. Thank you!
Awesome, glad it was helpful!
now I get it >.< agggr in 6 min you just explained a 30 min lecture to me. Thanks
You should make an addendum to this video covering the reverse/inverted operating region of a BJT.
Thanks man. Perfect explanation. It would be nice if a large portion of university engineering professors wern't worthless at their jobs.
I relate
Thanks for the useful video.
Amazing video man
We need this god quality content
i wish i had this during my undergrad intro to circuits class
Finally I got it, after taking two times the class and still in the dark, thank you
Kudos for keeping to it and not giving up! I'm glad we were able to help.
Love the video! Wish I would've found this channel earlier, better late than never! #subscribed
Awesome, thanks for subscribing!
Great job.
Thanks for the video!
Greetings from Eastern Arabia!
Hi Salah, greetings!
Greatly explained 👍
Thank you!
thanks a lot sir
I don't get why the other electronics channels get millions of subs and yours is so overwhelmingly underrated! Thanks again !!!
Thanks for the feedback! We'll keep learning, improving, and posting new content and hopefully figure it out someday 😀
@@CircuitBread this is infuriating !! Everything is well thought out, well explained, the graphics are nice, the website support is awesome. The instructors appear humble, with a really nice pace.
I really don't get it, this drives me nuts.
What an injustice.
You just saved my entire assignment
Awesome!
thank u !
Great! 😊
Thanks for this. Currently studying BJTs
Awesome, good luck and enjoy!
thanks for vediyo!
It'll be really helpful if u make a playlist for analog circuits 🙏 plz plz
Active region is confusing alright. Good video!
How to use a Bipolar Junction Transistor (BJT) as a Switch?: www.circuitbread.com/tutorials/how-to-use-a-bipolar-junction-transistor-bjt-as-a-switch
Great video, thanks. What about different BJT circuit configurations? Could you do a video on those?
We have that in the list!
@@CircuitBread looking forward to it, thanks a lot!
I absolutely love your videos, but can you please provide the specific link to the content you refer to at the end of the video so I don’t have to dig though your website to find it? Sometimes I don’t have the time to dig through
Thanks for the feedback, I was just thinking about this last week. Since we publish the video and written tutorials at different times, we sometimes (okay, oftentimes), forget to go back and put the links in. I'll get that in our todo list to update all the descriptions to include the associated written tutorials in the next week or two. Have a great one!
How to use a Bipolar Junction Transistor (BJT) as a Switch?: www.circuitbread.com/tutorials/how-to-use-a-bipolar-junction-transistor-bjt-as-a-switch
I really feel bad when channels providing good quality knowledge doesn't get views and likes. IDK why ppl go for some channels giving useless contents.
is there a upper "limit" for base current also in the active region, meaning a further increase of base current will not amplify the collector current anymore? in this case can we call it also a saturation?
You eventually hit a point where you're in breakdown region, you're literally destroying the BJT, and everything stops working linearly or even predictably. But up until that point, as you increase that base current, it will continue to drop the apparent collector-emitter resistance.
@@CircuitBread thanks!
Sir, please suggest me the best crash course for learning the same electronics in operation in MATLAB
I am too weak in MATLAB but cannot find such easy to understand and full course on internet.
Thank you for your assistance in advance.
I'm not familiar with any full courses, but Kushal has created some tutorials based on Scilab (an open source Matlab clone). They're not extensive (though he is planning on expanding them) but they're a fantastic introduction: www.circuitbread.com/tutorials/introduction-to-scilab
Pozdro od Organy! 😎
hi! i am an incoming engineering student and i would like to know if maybe you can suggest engineering chemistry and physics books based on your preference and experience. thank you very much!
Hi Helena! Sadly, not really. Both chemistry and physics lay the foundation of understanding of what we learn in our circuits, electromagnetics, and semiconductor classes, but our experience was that we used what our professors told us to use but now most of use our EE textbooks as references if we have questions. But I haven't opened my chemistry textbook since college and haven't used my physics textbook in probably eight years. 😬
Do you need to be good at drawing at EE?
If you see any of our videos where Josh is writing on paper and you can see his handwriting, I think that's pretty good evidence that you don't need to be able to draw or even write legibly to be an EE. 😂 Doesn't hurt, though!
Thanks cause i suck at drawing
yooooo0oooooooou aree ammmmmmmmmmazzzzzzzzzzzing,the beat electrical eng/ teacher evvvvver
😂
The confusing part is that the active zone is not called the saturation zone. You keep increasing VCE but IC barely increases. That's the definition of saturation right there, but no.
I agree, I think that's why it was so confusing for me as well for such a long time.
At 4:15 you say "as our collector-emitter voltage "INCREASES", you see a pretty rapid increase in our collector current". From the graph it appears that as the collector-emitter voltage DECREASES, we get rapid increase in our collector current. Did you mis-speak here????
666th like
Poorly explained