I don't know what it is, but you consistently have the clearest explanations I've ever heard. I took an entire class on Analog Devices at my college last semester and walked away with a very poor understanding of transistors. But these two videos you have on semiconductors and transistors have clarified things so much.
My guess is that he doesn't do the maths. He tells you what's going on with words and drawings. Bookwriters and lecturers have a tendency to - as they already understand the workings of things and you're supposed to be able to calculate stuff regarding the subjects - rely on maths to explain physics, and this is a very shite thing to do as it misses out on some very graphical things. Sure, if you look into it, the equations imply that a depletion zone exists and that a diode carries current better in one direction than the other, but the mathematical description for the motion of electrons isn't an efficient way of allowing you to understand the concept.
If you have any issues understanding some words, just turn on "CC" closed caption and select your native language from the settings menu (gear) for a better understanding. :)
This is the single best explanation of transistors I've ever seen. You are not afraid to go into depth, which makes it all so much easier to understand! Instead of using a bunch of useless analogies, you just tell me exactly what's going on, I appreciate it!
Damn. I have this phenomenon with your videos. You explain something I haven't heard, yet which I grasp the first time. Then you extend that knowledge and while you're explaining it my brain immediately thinks a step ahead and therefore I learn it myself and get immediate feedback whether that made sense. I love that. That is a teaching experience I'll never forget.
No one ever explained this concept in such an awesome way . came here randomly , but surprisingly learned a new way to see the transistor. thank you very much :)
Thank you so much for making these videos. I'm writing a paper about the transistor and this really helped me a lot. You explain things without leaving questions like many others do, and I really appreciate that.
Thank you SO MUCH for making this video. I was taught about transistors from two separate teachers with multiple textbooks and I never got it. This 11 minute video was so articulate and clear where now I understand why npn transistors function the way that they function.
Very well explained. I was having trouble teasing this out of a textbook and you made it clear in 10 minutes. Thank you for the time and effort to make this video.
well thats possibly the best transistor explanation i have ever seen. simple and short and yet somehow still covered everything, including the doping difference between collector and emitter, which is kind of crucial to understand why the transistor doesnt work right if you flip it around.
This is the only satisfactory explanation of the workings of the transistor I have seen -- and I have seen many, either on video or in text form on the internet. Thanks Ben!
Ben, one of the best demo's on transistors i have seen, and I have seen a lot of them. Great job! I'm subscribing to you and look forward to seeing your past and future videos. Thumbing-up
Currently sitting in my circuit analysis class bored out of my mind while the teacher is talking about calculating current in parallel circuits, decided to actually learn something. This is the best explanation of transistors I've found yet.
Good qualitative description of what's going on. Liked it! One description that I always found useful to understand transistor "action" is that once electrons from the emitter enter into the base, they are now "minority" carriers in the p - type base region, and will as such be swept across the reverse biased base - collector junction and into the n -type collector region.
Well done Ben, I was able to follow the whole video start to finish and I don't have a single question left :D (I'm usually someone who has a lot of questions left after an explanation :P)
OMG. dude, that was absolutely worth an applause. i wish you were teaching my ELT classes (years ago of course). it takes time to find a gem of a teacher. okay- here he is.
Great explanation I must have read more than 20+(LONG) articles on Transistors, but the subject was always fuzzy. This video clears thing up greatly , thanks.
This was so clear. Omg your voice your explanations are sooo good. I don't know anything about computers and have set myself to learn as much as I can and I've watched so many videos but they all lacked something. This one didn't, it went in depth and you didn't skip and steps to explain anything.
Learning how a transistor works from someone who uses the conventional flow while he explains it with elektronflow is very very hard! You did it right! Thx!
Thanks! Ive watched many other videos on this BJT and I didnt quite understand, your video was so clear and helpful, I finally understand how it works :)
I think you've just clarified a fundamental point in electronics that has always confused me when thinking about these things, and even more when listening to explanations of it, and it's so clear now that I feel stupid for never considering the difference. You clarified it by making such a big deal about the distinction between conventional electrical flow and the real flow of electrons. The distinction between these two perspectives carries such a massive weight that almost nothing considered in one perspective translates directly to the other, even if they are descriptions of the exact same mechanism. Thank you for unveiling maybe 1% of the mysteries of electricity for my crippled brain.
I knew early on that my career (now behind me) would be in the liberal arts. But my father raised me to be a lifelong student and that meant curiosity...even about things I have no real grasp of. So that hasn't stopped me trying to learn at least something about the hardware that I've been using professionally and personally...and your videos are revelations for me!
Pretty clear explanation, it's been a long time since I studied and tried to figure this out for the first time. It's kinda electrons were fooled to get into the base and then abducted and kicked out to the collector XD Congratulations!
@bigote in simple terms the emitter side is negatively charged while the collector is positive and the base is neutral. Current only flows through the transistor if you apply current through the base and emitter. This is because the emitter gets filled up with more electrons (from the base to emmiter circuit) to the point it can jump (difuse) into the base because it has no where else to go. After that the base becomes negatively charged. Then the collector which is positively charged attracts the negative electrons from the base and completes the curcuit
Thank you! That's the clearest explanation of the workings of an NPN transistor using electron flow that I've discovered yet. It would be terrific if you would do a follow-on video on how a PNP transistor works using electron flow, which makes much better sense to me than conventional current flow, a fiction that defies science. Thanks again Ben!!
How about a similar video abut JFET and MOSFET ? :( Can't believe how clear everything is to me, now that I've watched this! It would be soooooo helpful!
YES!! By far the best explanation on the web.... I just knew the transistor wasn't some magical device that opens between emitter and collector when you apply 0.7 volts to the base (NPN). ;)
Both the videos are excellent. They give a clear explanation, are easy to understand and the videos actually even helped me to use transistors. BTW what application did you use to make the videos? thanks
9:11 I agree that the positive charges in the Base-Collector depletion region will attract the "diffused" electrons. But no matter how thin the base is, you have an EQUAL number of electrons closer to the base which will REPEL these electrons. I don't see how the attraction will overcome the repulsion and get "swept" into the collector.
You are right it is not because of the positive charge,it is because of the high kinetic energy of the electron passing from emitor to base. However, there is also a small current due to reverse bias in J2 called reverse saturation current in the same direction of other current
They probably have enough momentum to not be affected by the repulsion. But when they do cross the electrons, now they'll repel them in the other way, which is good. Either way, it is probably not those charges the affect their movement.
You've made it really clear how the transistor "turns on". It seems that a small current flowing into the emitter and through the base is the catalyst that enables the larger current to flow into the emitter and through the collector. But how does it turn off? Why does removing the small current flowing from emitter through the base stop the larger current flow from the emitter through the collector?
I don't know what it is, but you consistently have the clearest explanations I've ever heard. I took an entire class on Analog Devices at my college last semester and walked away with a very poor understanding of transistors. But these two videos you have on semiconductors and transistors have clarified things so much.
Same here. These videos give me the clearest explanations I've ever heard of transistors.
ye!
Well said.
My guess is that he doesn't do the maths.
He tells you what's going on with words and drawings.
Bookwriters and lecturers have a tendency to - as they already understand the workings of things and you're supposed to be able to calculate stuff regarding the subjects - rely on maths to explain physics, and this is a very shite thing to do as it misses out on some very graphical things.
Sure, if you look into it, the equations imply that a depletion zone exists and that a diode carries current better in one direction than the other, but the mathematical description for the motion of electrons isn't an efficient way of allowing you to understand the concept.
He learned a lot about teaching from working at Khan academy as well as personal experiences while learning maths earlier in life.
Im not an english speaker but i could understand perfectly about bjt for the first time! Such a nice explanation. Thank you
If you have any issues understanding some words, just turn on "CC" closed caption and select your native language from the settings menu (gear) for a better understanding. :)
여기서 한국사람을 보다니..
Same, I'm frensh
Same, from China
This is the single best explanation of transistors I've ever seen. You are not afraid to go into depth, which makes it all so much easier to understand! Instead of using a bunch of useless analogies, you just tell me exactly what's going on, I appreciate it!
Damn. I have this phenomenon with your videos. You explain something I haven't heard, yet which I grasp the first time. Then you extend that knowledge and while you're explaining it my brain immediately thinks a step ahead and therefore I learn it myself and get immediate feedback whether that made sense. I love that. That is a teaching experience I'll never forget.
No one ever explained this concept in such an awesome way . came here randomly , but surprisingly learned a new way to see the transistor.
thank you very much :)
Thank you so much for making these videos. I'm writing a paper about the transistor and this really helped me a lot. You explain things without leaving questions like many others do, and I really appreciate that.
The clearest explanation I've heard on diodes and transistors, answered all my questions, thank you so much!
Thank you SO MUCH for making this video. I was taught about transistors from two separate teachers with multiple textbooks and I never got it. This 11 minute video was so articulate and clear where now I understand why npn transistors function the way that they function.
This is the best explanation on how BJT works that I have ever heard or read from any book. Thank you.
7:15 I was never more exited in my life :)
Very well explained. I was having trouble teasing this out of a textbook and you made it clear in 10 minutes. Thank you for the time and effort to make this video.
Incredible explanation! You have a talent for making a complex subject very simple.
I didn't intend to know how amplification works but the way you explained helped me figure that out as well!
For sure, the clearest and most complete explanation of a BJT on YT. Well done!
This is the clearest explanation of transistor operation I have ever seen. Thank you.
I have watched like.... 20 videos about how NPN transistors work and this is the only one that has made sense. Thank you.
bruh me too. Those other ones just skip over the most important part.
Ben, your videos explain this so well i am blown away, nice work mate, this has gone a long way in helping me pass my current uni engineering course!
well thats possibly the best transistor explanation i have ever seen. simple and short and yet somehow still covered everything, including the doping difference between collector and emitter, which is kind of crucial to understand why the transistor doesnt work right if you flip it around.
This is the only satisfactory explanation of the workings of the transistor I have seen -- and I have seen many, either on video or in text form on the internet. Thanks Ben!
Ben, one of the best demo's on transistors i have seen, and I have seen a lot of them. Great job! I'm subscribing to you and look forward to seeing your past and future videos. Thumbing-up
It is always better to visually see what's going on for learning. Thanks for the work in making this.
You are the only person on you tube who explains this so people can understand it. Thank you
Currently sitting in my circuit analysis class bored out of my mind while the teacher is talking about calculating current in parallel circuits, decided to actually learn something. This is the best explanation of transistors I've found yet.
Perfect explanation. You're literally one of the best explainers I've seen. Brilliant. Liked and subscribed. :) Thanks a lot!
Good qualitative description of what's going on. Liked it! One description that I always found useful to understand transistor "action" is that once electrons from the emitter enter into the base, they are now "minority" carriers in the p - type base region, and will as such be swept across the reverse biased base - collector junction and into the n -type collector region.
Best explanation of transistor I've seen. Thanks
Thank you. So much more clear than any other description I've heard.
The best explanations I have ever heard.
Well done Ben, I was able to follow the whole video start to finish and I don't have a single question left :D
(I'm usually someone who has a lot of questions left after an explanation :P)
You understand in a comprehensive way. That's why your explanation is the best i have heard.
How amazingly u made this all so simple to comprehend! Amazing work bro!!
THANK - YOU !had to watch dozens of other videos before I could figure it out :)
Very well explained!!!
Thank you very much!!!!
Finally understood...how a transistor works!!!
May god bless YOU :)
OMG. dude, that was absolutely worth an applause. i wish you were teaching my ELT classes (years ago of course). it takes time to find a gem of a teacher. okay- here he is.
Great explanation I must have read more than 20+(LONG) articles on Transistors, but the subject was always fuzzy. This video clears thing up greatly , thanks.
This was so clear. Omg your voice your explanations are sooo good. I don't know anything about computers and have set myself to learn as much as I can and I've watched so many videos but they all lacked something. This one didn't, it went in depth and you didn't skip and steps to explain anything.
You're the best channel I'm subscribed to by far, thank you for making this videos
Thank you. Best and most clear, detailed explanation. Really, really appreciate it.
Learning how a transistor works from someone who uses the conventional flow while he explains it with elektronflow is very very hard! You did it right! Thx!
May I just say that you explain BJTs really well. Thanks for the video!
Thanks! Ive watched many other videos on this BJT and I didnt quite understand, your video was so clear and helpful, I finally understand how it works :)
Your videos are fantastic. Thank you for creating this.
Thank ever so much Ben for those brilliant videos. It made things so much easier.
Thanks for your videos, they are extremely clear and approachable!
Awesome video! now i understand the concept behind a transistor completely after 4 yrs of shitty class!
Excellent explanation. A must watch video on the fundamentals of analog electronics.
Wonderfully explained, thank you!
excellent description, man! You helped iron out all of my conceptual issues
Thank you for making these videos! Othwewise I would have failed my Technics class in school... stupid packets...
By far the best video I have ever watched on the explanation of how a transistor works
I think you've just clarified a fundamental point in electronics that has always confused me when thinking about these things, and even more when listening to explanations of it, and it's so clear now that I feel stupid for never considering the difference. You clarified it by making such a big deal about the distinction between conventional electrical flow and the real flow of electrons. The distinction between these two perspectives carries such a massive weight that almost nothing considered in one perspective translates directly to the other, even if they are descriptions of the exact same mechanism. Thank you for unveiling maybe 1% of the mysteries of electricity for my crippled brain.
Thank God you exist man, this has been messin with my brain for a few days.
Was looking for this explanation since 2 months ! many thanks.
Excellent explanation. Thank you.
This is the best explanation about transistors that i have ever heard, thank you!
That was simply the best explaination ive heard about transistors . Thanks man .
Thanks man, i never really understood the transistor it's been like year and you literally made me understand it in 11 mins.
I am learning electronics all by myself and these video's help me a lot, thanks!
How did you studied?
Thanks, Ben, for confirming my point at your previous video.
your videos are amazing and i learn so much from them. thank you very much for sharing and educating about this!!!!!!!!
I knew early on that my career (now behind me) would be in the liberal arts. But my father raised me to be a lifelong student and that meant curiosity...even about things I have no real grasp of. So that hasn't stopped me trying to learn at least something about the hardware that I've been using professionally and personally...and your videos are revelations for me!
thank you for making the concept soo clear!
Very nice video, I finally understand how the transistor really works at the micro level now.
You're amazing, man, thank you! It's all cleared up now!
Pretty clear explanation, it's been a long time since I studied and tried to figure this out for the first time. It's kinda electrons were fooled to get into the base and then abducted and kicked out to the collector XD
Congratulations!
Dude you are the best. I have been watching numerous videos but your actually explained the full thing thoroughly for begginers
@bigote in simple terms the emitter side is negatively charged while the collector is positive and the base is neutral. Current only flows through the transistor if you apply current through the base and emitter. This is because the emitter gets filled up with more electrons (from the base to emmiter circuit) to the point it can jump (difuse) into the base because it has no where else to go. After that the base becomes negatively charged. Then the collector which is positively charged attracts the negative electrons from the base and completes the curcuit
Hope this helps
@bigote i used electron flow in the explanation btw
Thank you! That's the clearest explanation of the workings of an NPN transistor using electron flow that I've discovered yet. It would be terrific if you would do a follow-on video on how a PNP transistor works using electron flow, which makes much better sense to me than conventional current flow, a fiction that defies science. Thanks again Ben!!
Very well explained. I understood more in this 11 minutes video about how the transistor works than a 3 hours class lol.
You have a gift for explaining things, man.
omg your awesome nobody online explains it so clearly
fantastic video! best explanation of how transistors work that i have ever seen!
Excellent explanation! Very thorough!
Best explanation on the net, i finally got it. Can you explain saturation!
Best ever explaination on Transistor!! Great!! Thanks a lot!!
This will really help me for my seminar paper. Good work!
Thank you for the clear video! And thank you for sticking to electron flow over conventional 😁
Very good explanations on everything I know this is 6 years old now but I just wanna tell you I appreciate it!
Thank you so much! Great explanation and visualization!
You should also make a video on PNP transistors. Your videos are so helpful!
How about a similar video abut JFET and MOSFET ? :( Can't believe how clear everything is to me, now that I've watched this! It would be soooooo helpful!
This is not for girls
@Just Cause oh god here comes the white knight brigade. No women don't belong in STEM even here in the west
Sexism has no place here
Alexandra Alexoi Quit electronics you miserable hag
It's truly breathtaking how viciously, stupidly sexist and racist the fields of engineering and computer science are.
it really helped me understanding the working mechanism...Gratitude
YES!! By far the best explanation on the web.... I just knew the transistor wasn't some magical device that opens between emitter and collector when you apply 0.7 volts to the base (NPN). ;)
Thank you for making these videos. People like you are a treasure to this crappy world.
simple and well explained, congrats.. thank u.
Thanks, I have been struggling with this for a while now
Both the videos are excellent. They give a clear explanation, are easy to understand and the videos actually even helped me to use transistors.
BTW what application did you use to make the videos?
thanks
Thanks for the video , i couldn't understand this any where else
most clear video for transistor ever!
the best explanation ..keep going and we wait for ur new
It fascinates me how easily you can draw and write using your mouse. :)
Good video, thank you for sharing!
Its a drawing tablet
You Give Clarity on every Topic No University Teacher Does that!!!
Very explanatory video, subscribed.
9:11 I agree that the positive charges in the Base-Collector depletion region will attract the "diffused" electrons. But no matter how thin the base is, you have an EQUAL number of electrons closer to the base which will REPEL these electrons. I don't see how the attraction will overcome the repulsion and get "swept" into the collector.
You are right it is not because of the positive charge,it is because of the high kinetic energy of the electron passing from emitor to base. However, there is also a small current due to reverse bias in J2 called reverse saturation current in the same direction of other current
They probably have enough momentum to not be affected by the repulsion. But when they do cross the electrons, now they'll repel them in the other way, which is good. Either way, it is probably not those charges the affect their movement.
Thanks man!
Much informative.
Thank you so much this video is really helpful!
You've made it really clear how the transistor "turns on". It seems that a small current flowing into the emitter and through the base is the catalyst that enables the larger current to flow into the emitter and through the collector. But how does it turn off? Why does removing the small current flowing from emitter through the base stop the larger current flow from the emitter through the collector?
I have the exact same question!
You make a really great lecturer!! :)
thanks man for such a great explanation
Thank you! You cleared my doubt!
Thanks this helped me a lot with my presentation