NPN & PNP Transistors explained - electronics engineering
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- Опубликовано: 23 окт 2024
- NPN and PNP transistors explained. How does a transistor work. What is the difference between an NPN and a PNP transistor. We find out in this video.
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no
Dude thank you so much but i don't have any online transaction methods.
If you don't use this every day, the details slip away. Thanks for a brilliant overview, explained much better than the slow learning process of the past.
100% right
You should rewatch the video every 2 days to ensure your brain has sucked the informations
@@erwinsan4746 ONGOD, I want this in my sleep so I never forget!!
I am a retired engineer from the vacuum tube electronic times, worked in the industry since the 1970 till 2010. Love teaching and learning. Found this channel and love it, everything thing is very well explained and refreshing. Thanks very much for your dedication to share all this videos.
But in our text book PNP id drawn very different. Why so?
Love this Chanel. I’m such a simple man and this channel gives me so much understandable knowledge. Thanks.
Glad you enjoy it!
I had that sort of family where studying books about transistors was something your dad couldn't belittle you about. So I read a lot of books back in the 70s. Became a high school TV repair men for the neighbors. It was one of the good spots of the past.
This video brought back some of that. Thank you for that. :)
Going to explore more of your channel.
Oh and PS: if you have other videos on ancient vacuum technology - that would be a welcome trip down memory late as well. :)
I keep coming back to your videos. I struggled with the concept of transistors for a long time until I found this video along with your other videos on transistors. Your narration and animations are so perfectly simple, vivid, and clear. It's my goal to one day teach technical subjects, and I aspire to be as effective as you are.
At 70 I need things as simple as can be until I grasp the concept.. this was great.. learning new things is hard but still stratifying!
Glad it helped
@@EngineeringMindset oh me too.. this is a fun winter time hobby I am learning.. It is hard to be old sometimes then folks think.. But! as long as I have something to do it's ok! Carry on little brother I appreciate your channel!
I learned all of this 30+ years ago in college...do you think I remember any of it? :( Thanks for the refresher!
I learned it 40 years ago in Navy. Well, late 70's in tech school really... learned vac tubes from granpa in early 70's (owner TV repair shop).
I've used it continuously over the decades because of applicability to understand.
Maybe he'll do a more detailed vidy of minority carriers and tunnel diodes.... this is where it gets more interesting to me.... I guess FET's should come first tho.
And refreshers are always good as most of us do forget. O7
I had that sort of family where studying books about transistors was something your dad couldn't belittle you about. So I read a lot of books back in the 70s. Became a high school TV repair men for the neighbors. It was one of the good spots of the past.
This video brought back some of that. Thank you for that. :)
Going to explore more of your channel.
Oh and PS: if you have other videos on ancient vacuum technology - that would be a welcome trip down memory late as well. :)
For me this is the best you've explained the NPN and PNP.Very short but awesome video
Great videos and great information. I really enjoy this channel for explaining electrical components and the way they work in a circuit. Thank you Engineering Mindset!
Glad you like them!
I know this question will seem stupid to a engineer. If transistors are just three layers of n or p type material, why can't the collector and emitter be interchangeable? Transistors are shown as just three layers of npn or pnp, but in practice the emitter and collector are not interchangeable.
I'm guessing one of the main reasons for that is emitter is heavily doped as it has to carry a large number of charge carriers (electrons) while the collector is moderately doped
Also, I believe that the structure inside the transistor is built such that the emitter is the largest while the base and collector are relatively smaller.
BARRIER POTENTIAL POLARITY...?🤔
best explanation of NPN and PNP transistors here on RUclips
My 2 favorite Paul's, from whom I have gained a WEALTH of knowledge!
Paul Carlson (Mr Carlson's Lab) and Paul Evans (The Engineering Mindset)!
Forever indebted to BOTH of you! Thank you for making your skill and knowledge available!
Best regards and MANY thanks!.
Patrick
Thank you, glad to be of use.
Where have you been when I was in college, bless you sir.!!!!
Thanks for the brush up. Good pneumonic device to remember this by is NPN negative/ neutral to battery. PNP positive/power from battery. That's how I remember it anyhow.
Thanks this cleared very quickly that what components should I select for my project. It Was very quickly and informtive
Very good explanation!
I didn't understand how it worked when I read it, but I understood it when I watched it. Thanks.
Good video. I didn't knew NPN transistors increased voltage.
This wasn't in the video was it?
Thank uuu for this super easy understandable and helpful explaining video 😁
This is my on of the best channel
please make long detailed videos
I love ur videos 💕
A had lots of doubt but now cleared.
Thanks
Glad to hear that
good work
Thank you
VERY USEFUL CHANNEL, I LEARNED A LOT, I AM GRATEFUL TO YOU THANK YOU
❤❤❤❤ thank u so much, heart touching, everything is clearly explained, thank u once again❤❤❤❤.
Npn...needs positive nput...pnp...put negative please...simple way to remember how to activate the base...
I just remember NPN as "NP IN", as in the current flows in to activate it. The PNP is therefore just the opposite
@@EngineeringMindset And to remember the schematic symbols, I always use NPN = Not Pointing iN in refference to the arrow.
I learned it ages ago as "NPN - never points in. PNP - Point In Please"
Thanks again for making it clear and easy to understand.🤝
Please make a video about how to read the datasheets of the components properly
You have no idea how much I need this! 😭
Love your videos, quick simple and clear to understand. Thank you sir.
I'm from india bro really you are a best guider
Thank you, do you know we also have a Hindi channel? ruclips.net/channel/UCg4k338hz9U8jnD5SXPO5jQ
Thankyou so much for this and now I can understand the NPN and PNP type transistors
2:20 "The current combines in this transistor"
That's technically true but it has nothing to do with the transistor, it's just how circuits work; when a circuit branches, the current divides, that is always the case.
You can just as easily switch on the transistor by using a second powersource between Base and Emitter.
The *much much more* important point of a transistor is the amplification. You can apply a low voltage between B and E to get a large change in electrical resistanve between C and E. It's not just on and off, but also everything inbetween. In a BC548 you can control a 30Volt signal completely by applying only 0-5volts to the base. That is what transistors are about.
Thanks, we have discussed this in detail previously ruclips.net/video/J4oO7PT_nzQ/видео.html
Why you trying to flex on Paul yo. He did an in depth video in the past about switching and amplification circuits.
.
Your teachings are clearly for me . please, make video for MOSFET
See my new MOSFET explained video here➡️: ruclips.net/video/AwRJsze_9m4/видео.html
Thanks bro very useful video 👍👍
Awesome simple explanation! Thanks!
Great lesson!
Explained Nicely.. Thanks al lot.
Learning about this stuff in my solid states class for an instrumentation degree. It’s not too bad but I have an instructor that isn’t very good at explaining it. He’s very smart and really knows everything about what he’s teaching but he’s just not good at teaching it. Everyone in the class has to look up what he goes over in lecture online and find a RUclips video that explains it better. Last semester I had a very very good instructor for electricity principals. Wish he taught solid states. At least there are so many RUclips channels that explain everything better.
nicely explained..thanks
I so wished that concept of "conventional current flow" never came to be.
It really ruined little me's first electronics experience since physics books mostly talked about elektron flow and popular electronics books did the reverse thing. And it was too often unclear what they meant when saying "current flows this way or that way".
You'd think electrons go where the arrow points.... meeeeeeep. wrong.
I consider myself fortunate that I first learned about current direction being the flow of electrons while in technical school. Going to those damn university engineering and physics classes, they always defined current as the direction of the flow of holes, the gaps left by the traveling electrons. Of course these same college textbooks would describe holes as equal and opposite to electrons even down to the mass. If a hole is the absence of an electron then how could it have mass? Years of uni indoctrination have never changed my way of thinking; current being equal to electron flow (the Popular Electronics way) just makes more sense to my pea brain.
I agree with you daslllu for sure it is literally the most complicated thing on earth to describe all the +/- in every little inch of these contraptions for a million reasons. We could at least be organized regarding what an electron or electrical phenomenon direction is. I agree with you - if the electrons boil off from a source more easily that the can be sunk, well, doesn't that change everything regarding the entire discussion and philosophy of how we approach design. So we are spent fixing all this stuff that sucks instead of it just working. You know - I agree with your philosophy - I've questioned more than anything "aren't we worried more about conductance than we are resistance? But the first chapter in every english EE text is ..." resistance.
Excellent video!
Very helpful
Very helpful explaination...👍
great video, thank you
Ugh! Believe it or not, I say that with great respect. I am an ME who worked for an electronics company for many years. My bosses were EE’s, for the most part, and had great fun in maligning us ME’s.
Great. Thanks for your sharing.
Thanks for explaining
Thanks bro😀👍
Very good sir....
Regarding the terms *Collector* and *Emitter,* what is being collected and emitted? 🤔
I ask this because their designations do not change with the direction of the current.
lecacy terms from the day of “valves” vacuum tubes
Can you make a video how to use transistor as switch and as amplifier ?? and maybe how to calculate resistor value. That will be very nice. Your animation is very good.
Check out NEW resistor video, everything covered! ➡️ ruclips.net/video/DYcLFHgVCn0/видео.html
Great vid, thank you.
thank you
is it just me or the subtle graphical blue background really helps me understand better
Love your videos. Would love to see a video on how to read site drawings 😀
To me this channel is a gift from Allah.. May Allah bless you with lots of happiness and with lots of money..
O thank you Allah for the transistor
So the collector and emitter are both conductive and the base is semi conductor? Or are all 3 semi conductors? Because I'm having trouble grasping the layout of my transistor....it has the base on the outside, the collector in the middle and the emitter next to the collector...
Could it be said that besides enabling a control circuit to activate a main circuit, transistors are also for division or recombining of current? New to this so please show mercy.
So, let me see if I got this right. One of the differences between NPN and PNP transistors is that, with NPNs, the current flows from the collector to the emitter, and, with PNPs, the current flows from the emitter to the collector. Is that correct?
Thanks. This video was wonderful. Just what I've been looking for. But i would have also like to see some real life applications.
Did you see our video on motor speed controller? We show how ones used inside the 555 timer. Can also watch our details "transistors explained" video with example
Nice information.. kindly make and video on crt television pcb circuit & Led TV PCB circuit also Air Conditioner pcb circuit with diagram 👍
Excellent. To use one of these with a Micro controller, like ESP32 or Arduino. Would you need a resister between the Micro controller pin to the Base? I mean is the 5 Miliamps too much power for a data pin? That would be the next step in using an NPN or PNP.
It doesn't have to be 5mA, see this tutorial ruclips.net/video/J4oO7PT_nzQ/видео.html
Check out NEW resistor video, everything covered! ➡️ ruclips.net/video/DYcLFHgVCn0/видео.html
bro i like your videos so much pls can you make a video that explains about logic gates
Very good.
I finally see a difference between the NPN and the PNP transistor/ if it is explained clearly and visually then I think anyone interested in fundamental electronics can benefit from subscribing to this channel / keep it up and buy this guy a cup of coffee ! Thank you so much
Request / could you do a video on the fundamentals of the IC 74HC 595 shift register / I just don’t get in the programming how to shift out zeros instead of ones / I see a number of explanations but I think you could make it much clearer in your style and format/ again thank you so much
very cool. thx
Thank you for the great videos! Such a blessing :)
Can you do a video on transducers please?
Love the video, very helpful
Glad it was helpful!
Can you explain GaN wide bandgap device?
Thanks
Can you do one that explains how to switch high voltage with a low voltage base using a transistor? Your videos are very helpful, thank you for everything so far.
Are you referring to a Darlington transistor?
@@EngineeringMindset Maybe? I have a pinball machine that uses transistors to switch higher voltage for lighting with a 5v source going to the base. I know transistors can be used like relays but the implementation is still pretty unclear to me.
@@kennmossman8701 That's it, thank you!
cute that you are showing flow from + to - even though it is actually from negative to positive, or did we stop using electrons and electron energy waves?
ruclips.net/video/MUh_dOcqgVw/видео.html
I guess transistor is the biggest achievement humanity has ever made in the field of electrical engineering. Can't think of the world without them, they are everywhere now.
Billions in the phone I holding
@@thatyoutubeguy7583 absolutely
Thanks!
Thank you, Stremtan. Very much appreciated!
Please make a video of how to connect electronics components in a circuit
Please watch our electronic projects videos
Nice video,thanks :)
Thanx
#Thank you#
Please do mosfets next
See my new MOSFET explained video here➡️: ruclips.net/video/AwRJsze_9m4/видео.html
I don't ever think I'll get this stuff, I always thought electricity flows from negative to positive.
Happy teacher's day ❤️❤️
thank youuuu
Pleases make video on chopper
I like your videos
Please make AC 220v to DC 9v converter tutorial video
What will be if I change the place of emitter and collector?
I like your video, but still, it's not explained why on atomic level both transistors work as intended. Is it because of special amount of electrons is feed and not less or more, which allows the flow between opposite circuit?
We covered it in great detail previously ruclips.net/video/J4oO7PT_nzQ/видео.html
@@EngineeringMindset Thank You! ;))
In pnp y emitter is connected to positive terminal
Why don't electrical engineers just decide on covenantal or electric current. It makes this so much harder to learn. I was thinking this entire video was using electric current until I re-watch it. I almost learned the exact opposite of what I needed to.
See here ruclips.net/video/MUh_dOcqgVw/видео.html
They decided on this long ago .. "conventional current". Yes it's frustrating for physicists but it's far too late to change now. We just have to live with it.
What I’m curious about is why the electrons and holes do not uniformly distribute themselves when you put a P and an N type region into contact.
Electrons in the N type material fill the holes at the junction in the P type material. This creates a barrier voltage that prevents further electrons from filling all the holes in the P type material. That’s why a forward biased silicon junction diode needs a voltage of approximately 0.7 V before current will flow through it.
I have an ESP32 CAM MB board connected to a direct 5V power source, and I am using an Arduino that operates a NPN transistor to turn it on and off to take photos.
If I add a resistor to the mix, anywhere, the board won't work. I was afraid that having a 5V power source, and the On/Off from a separate Arduino might fry the board or the transistor.
Why does transistor stop this circuit from working? If I literally put it anywhere into the circuit the ESP32 switches on, but does not operate.
Check out NEW resistor video, everything covered! ➡️ ruclips.net/video/DYcLFHgVCn0/видео.html
SUPER 🙏🏻👌👌👌👌👌
It might be worth adding that the diagrams for pinouts are pin view, not plan. You can ask...
Cool vids!
what should me use NPN or PNP transistor ?? Or when we should use NPN transistor and PNP transistor for the other thing??
Well, as you see from the examples it depends what you want to achieve. See our motor speed controller video for how they are used in 555 timer
Im confused. I thought that for PNP type when the base is off the main circuit should be on. Because for NPN when base is powered Collector and emitter is connected but for PNP it is said that it is the opposite so when the base pin is powered the collector and emitter should not connect since they are opposites. yet in the video 2:22, PNP base is off but the emitter and collector is also not connected?
even the flow is confusing... Electrons travel from the negative to positive terminals right....
From where I can buy cheap electronic components??
why is it called 'emitter' still, whether current flows in or out of it, depending on npn or pnp? why not swap pin names at it?
Please explain using electron flow not conventional current...