@@ChristisKing7749no not at all this was a very terrible explanation and if you use it in an interview you’ll be thrown out. Look into the hybrid pi model of a transistor for better understanding of gain
@isellfoodstampz Yes, the collector and emitter are connected to a power source that can provide that large current, the current at the base decides how much of that current can flow.
Loved the little guy analogy. I'm just getting into electronics and everything I've seen up to now I have found mainly baffling. Why does almost everyone else make everything so confusing? The way you explain stuff gets right to the point and is very easy, (for me anyway), to understand. Sir! You have given my enthusiasm a great boost. Thank you. (Thumbs up and a new subscriber).
I heard that npn transistor is used for amplification, and it adds up to values of current coming from base and collector to produce much higher output than before we had in source and it emits that higher value through emitter. I made circuit including a transistor(npn), led and a battery. It resulted to produce much less power supply for led and it dimmed led, but when i put led directly to battery it was glowing much brighter than before.
Thank you for this! I went through an electronics course learned the math and never even understood how it worked. The professor never even gave us an example. Just math.
😮. I've used transistors in basic PIC controller circuits, but never really understood them (I always had to find an example somewhere of what I wanted to do) but this made it soooo clear. Your videos have definitely taken me to the next level in my electronic understanding (and I'm watching several a day). These videos need to be part of every classroom. I look forward to many more (especially one on PNP transistors because I have never understood when to use them over NPN, which is why I have never used them). Thank you!
I could be wrong but I think I've finally got it. If I'm still wrong, please let me know. At first, I thought these things were somehow magical power enhancers and I struggled to understand how they were 'amplifying power.' They say you can't get something from nothing, I thought; But then, I think, I got it: The old light dimmers generated a lot of heat because the could only reduce down energy by resistance; akin to poking a hole in your hose instead of just putting a kink in it. Then, wondering where the extra power comes from, I realized the "base" source "amplifying the power" must be coming from the battery in my smartphone just as much as the emitter was coming from the battery as well (I realize I may have terms mixed up). So then, these transistors must be a network of nodes for the cpu/os to select power needs based on path of amplification necessary for computing power. That way if you need minimal power it bypasses transistors and if your gaming its likely the high usage of the millions of transistors in your phone generating heat. But still in confusion I have questions such as: Is it now transistors that govern my lightbulb without wasting heat? If so, how does one draw a 'thread of electricity' to go into the transistor, from something as powerful as 'mains' in order to create something as low powered as a charging base, without overheating (or is this just resistors still?)? Am I way off? Am I close? I have no idea 😄! Please, help me 😄! Proverbs 27:17
started out great then we got into pixies living in the transistor :)..then it stopped??? Basically I'm just trying to wrap my head around the concept of amplification of an AC signal from say a transducer/piezo/signal of some kind. I know what a transistor does, one of functions it performs is amplifies...but I want understand how it amplifies..how does it do the 100x amplification of the signal from base, You mentioned about the little man on the meter pumping up the collector current, trying to get the base to match...What is that magic process that is happening in there that boosts a signal. That current flowing in the collector is DC, the signal from Base is AC...thats where I'm at with it. All the beginners vids are too basic, all the technical explanations are over my head...I just need a big picture explanation..my brain won't let me take in new info unless I get a broad view. Obviously you have concocted transistor men to help you...I need more..their not working for me...although it did help a bit, but I want to know what else the transistor man does to amplify that AC signal/sound source. How does the AC get bound to the larger DC current...how does it grow bigger..get the little man to explain...I part 2?????
Here I go, replying to a 2 year old comment... A preface - I'm a non-professional mildly-educated hobbyist electronic, so most of what I'll say here is either hearsay or my experiences. The one thing that helped me understand transistors is realizing that they're not amplifiers - they're limiters. You have an external power source at the collector which is blocked from outputting its current to the emitter by the transistor. Only when you apply current to the base, the transistor will stop blocking power at the collector and allow this external power source to go through to the emitter. A second rather important point to understand is that the amplification value isn't something you should really keep in your head much. The value itself, which usually is indeed around 100, can vary from 50 to 250 depending on its creation, even in transistors from the same production batch. It can also vary significantly depending on ambient temperature, the collector current, and other such things. Because of that, you can't really depend on a certain and stable amplification value. What you should instead focus on is a saturated transistor - it's when the base current is bigger (I would say, significantly bigger) than the expected collector-emitter current divided by the amplification value. So for example if you plan on drawing 20mA, your base current should be way above 0.2mA. Then, the transistor basically functions as a switch - perfect for digital applications. And if you're interested in how the actual transistor works, just google (or search on youtube) "transistor quantum mechanics"
raindogred just go read a microelectronic book dude, it’s not something you can understands within minutes. First understand the behaviour of semiconductors, the PN junction，“holes” and electrons , then mosfet and BJT, then you can start looking at the different modes of the operation of these transistors.
At 4:40 thru 5:00 minutes Ben glosses over something that I find to be the most confusing thing about working with electronics. In conventional circuit flow he describes the current as flowing from positive to negative. Then immediately says "of coarse we know that electrons actually flow from negative to positive". WTF? I thought I understood that electrons are negative (polarity) and flow to positive (polarity). In a DC system I was under the impression that a Positive Voltage represented a Larger Negative Charge. Hence the electrons do flow from positive to negative in that sense (and more importantly direction) while at the same time they are still flowing from the negative polarity to the positive (relative) polarity.
By the way, if the transistor has an outside circle around, basicaly it means standalone discrete component in schematics, same as you use on the breadboard. It is drawn without circle, if the part is supposed to be integrated on chip in IC's.
This would've been better if you'd stopped at "and the transistor tries to ensure that the collector current is 100 times the base current". The "think of it as a little guy inside" thought experiment does not add to what was already said. It doesn't clarify anything, and it's not even an analogy for what really happens. [a couple of days pass...] That said, I'm currently going through the rest of your videos, and I'm really enjoying them. I'm familiar with how processors work on a higher level, but seeing one implemented as a collection of logic gates and seeing it in operation is quite enlightening. Thanks for all the work you put into this series!
@randogred, I just watched videos how transistor works, basically the transistor is not conductive by default, the base current will attract the electrons to the other side to become conductive, the more base current, the more electrons it attracts from emitter lead(electrons flow the opposite way) and the transistor becomes more conductive. Please correct me if I am wrong.
This is a great channel I found it from the bread board video card. I'm interested in getting more involved with messing with electronics. Any good places for a beginner to check out.
I'm exactly the same, saw the breadboard video card now I've ended up ordering an arduino with electronics to get into all this for the first time and watching his videos from the start so I can learn everything else lol. Oh you can play around with circuits online as well, found a great site by autodesk that I use while waiting for my arduino kit to come in, tinkercad.com. Good luck though with everything ^_^
One question there. To little guy to open up the resistor so current can flow 100 times as base current, collector should be fed with the 100 times current right.
So it works as a relay would. Just being able to switch super fast so it replicates the signal coming in? Do radios have a analog to Digital converter? I thought transistors are only for digital signals?
i'm definitely missing something :( if it "amplifies" current from a lower energy source, where does it get its other energy source from to carry out the "amplification" process?
Actually saying a transistor is an amplifier was misleading for me before I lean electronics, what happens is actually controlling a current in it's CE circuit side with a much smaller one in its base circuit side that makes it mimick the shape of a signal when biasing conditions are met.
Remember, if you don't get it the first time. Try to watch the video later, or look up a different video with a new explanation, and then continue the playlist. Never give up!
Sir, I have a solar panel which gives 5v 100ma I want to increase current to 1-2ampere to charge battery faster How many transistors should I need to use
It reminds me of the Flintstones technology they use monkeys n animals to turn on and move things, the transistor has a tiny little guy inside that varies the Current collector with respect to how he Feels the Base on his Face.
this explanation is very helpful to me, thank you! so, in the end do we have 101 x IB from the Emitter? because it's 100 from Collector +1 from Base? i'm new to electronics.
IDK if my analogy is correct since the emitter-base is forward biased the resistance because of depletion in the emitter-base junction is low and the electrons (majority charge carriers) will diffuse into the base and become minority charge carriers. then some of these electrons (minority charge carriers) in the base recombine with holes and others don't because the base is lightly doped and is very small. These left electrons still carry the energy drift into the collector which is reversed and biased which collects these electrons. There is an electric field from base to emitter due to diffusion and another electric field in the same direction from collector to base due to drift. and since both these electric fields are in the same direction the transistor works as an amplifier. is this analogy correct?
i assume you mean to a desired value: well i assume that β is a variable constant for each transistor, with that being said i assume you would be able to amplify with exactly that proportionality I_B*β=I_C.
Hi Ben, i have a question. Given that a transistor actually amplifies the amount of current flowing through the circuit, how is this obtained without increasing the voltage? Because according to ohm's law, the current is proportional to the electric potential and inversely proportional to the resistance. Since, I assume, the transistor cannot manipulate the value of the resistor which is already plugged into the circuit, how does it work?
If you're talking about how the transistor is able to manipulate the collector current, you can think if it like the the internal resistance of the transistor decreasing with an increasing base current. So if you look at ohm's law, the base current is increasing because the resistance is decreasing
From what I've just watched there is no explanation of how it's amplifying. How is it 100x the base. Is the output of the emitter limited by the input collector
New to electronics, Is the amount the current can be amplified limited to the batteries current? E.g hypothetical, let's say humans found a new power source that had 12v potential, but the current was limited to a picoamp (lol), could a transistor, or any other component or circuit boost/amplify the current, or does that go angianst physics? Sorry if question is dumb 🤤
Trying to understand how a transistor amplifies current, watched this video, was simply told that for some reason a transistor does amplify current and that reason is there's a little man inside the transistor looking at two monitors...is this a childrens program?😂
By looking at it from "conventional current flow", you have confused the issue. The base could not modulate the collector if the current were flowing from the collector inward to the emitter. The only way it is modulating the current of the collector is if the collector collects an amplified signal from the base. This is the main problem I have with using this convention, because it confuses people like me trying to understand electronics, and acts as a gateway, just like the base does, for keeping people who don't want to deal with that bullshit from getting into this realm of knowledge. Now that I can think of it in terms of the current flowing towards the collector, it all makes sense, but at first, you had me very confused until I googled where the current is going in a transistor. I hope this teaches someone something about...well, teaching
I'm pretty sure you cannot explain why a transistor works with an electronics schematic. I once saw a video (which to my frustration I can't find now and end up watching all these videos where people simply explain why a current can pass through a transistor) where, I think it was Richard Feynman was talking about the development of Quantum Mechanics and how this has made the transistor possible. As I understand it: The material of a transistor is able to output more energy than you put into it and this has something to do with the discrete energy levels (orbits if you will) that electrons are forced to be in. They can jump (completely counter to classical-mechanics) from a lower energy state to a higher energy state. I'm pretty sure it was explained that this is what makes the amplification possible. And most of what was left to do was figure out how to pick/make? the right material that would have this property. But alas I can't find this very good video.
Fun to know that my computer is being run by about 1 billion microscopic little men (except they are probably reading voltmeters because computers use MOSFETS).
sir can u give me a idea to amplify the current rate upto 10x times for example i have a current rate of 100 ma op is must boost it to 1A or at least to 500 ma please help me
Still doesn't explain the 100 number? Seems like every video the 100 gets plucked out of thin air? Why is there no perfect explanation that answers all questions related to this one topic?
And now we know all about you Andreas. . . . . That is one very short world of experience and consideration for the needs of others you have their. You see nothing outside your own closed in world. It's all about you isn't it. No consideration for the needs of others with you eh boy. Clearly you think that adults at 58 years old coming to electronics for the 1st time are little kids. I learned from this man's best efforts to educate me. I thank him for it. Not you. Shallow and inconsiderate of the needs of learning at any age.
I have been an electrical engineer for about 40 years. But this is the best explanation of how a transistor works that I have ever seen! 😀
Where does it pull the x100 current? It must already be present right?
@@ChristisKing7749no not at all this was a very terrible explanation and if you use it in an interview you’ll be thrown out. Look into the hybrid pi model of a transistor for better understanding of gain
@isellfoodstampz Yes, the collector and emitter are connected to a power source that can provide that large current, the current at the base decides how much of that current can flow.
Need a mnemonic to remember the transistor pins? (C)all (B)en (E)ater : ) Great video Ben! Really helped me with my homework!!
This gave me a soft chuckle.
Better call Eater
Loved the little guy analogy. I'm just getting into electronics and everything I've seen up to now I have found mainly baffling. Why does almost everyone else make everything so confusing? The way you explain stuff gets right to the point and is very easy, (for me anyway), to understand. Sir! You have given my enthusiasm a great boost. Thank you. (Thumbs up and a new subscriber).
I heard that npn transistor is used for amplification, and it adds up to values of current coming from base and collector to produce much higher output than before we had in source and it emits that higher value through emitter. I made circuit including a transistor(npn), led and a battery. It resulted to produce much less power supply for led and it dimmed led, but when i put led directly to battery it was glowing much brighter than before.
Good god man, I find electronics greatly confusing too, people don't explain them clearly enough a whole lot of times.
For now this is the clearest explanation I found :)
Could you make some videos about other components? (MOSFET, capacitors, inductors...)
Thank you for this! I went through an electronics course learned the math and never even understood how it worked. The professor never even gave us an example. Just math.
Npn= not pointing in
Pnp= pointing in
You would understand with the schematics
Yes
goated comment
In german we say PNP = Pfeil Nach Platte (Arrow towards Plate)
best tut. about transistors ever. thanks
😮. I've used transistors in basic PIC controller circuits, but never really understood them (I always had to find an example somewhere of what I wanted to do) but this made it soooo clear. Your videos have definitely taken me to the next level in my electronic understanding (and I'm watching several a day). These videos need to be part of every classroom. I look forward to many more (especially one on PNP transistors because I have never understood when to use them over NPN, which is why I have never used them). Thank you!
Great video! It presents the operation in a way that is crystal clear. Please don't fry the transistor though...that poor little man!
another video that proofs Art of electronic is a must read
That little guy explanation about the transistor was perfect!
Clever way of describing how a NPN BJT works.
There's a person in each of these transistors?! Oh god, I'm a mass murderer D:
Best tutorial ever
8:02 is the exact moment I thought of the Art of Electronics by Paul Horowitz and Winfield Hill.
the little man never gets tired, unless you forget the current limiting resistor, then he's dead tired!
You explains so well! I'm so anxious to new content as you!
Ps.: Sorry for my english, i'm trainning.
You're doing great with your English! 😊
Excellent tutorial I've learnt a lot many thanks clear explanations and we'll presented
Thanks man I finally understood transistors
That man analogy was just ultra-legendishhhhh...
#FreeTheTransistorGuy
Jk, I love your videos. First time I really get these concepts
GREAT Explanation thank you!!
Thank u for your videos I love all of them!
best channel
Teaching at it's best !
Very well put.....a good explanation, I like it! :) Your analogy made it click. Thanks
Very good. Thanks for posting! 👍🙂🏴
it helped me out so much pls more
Great explanation thank you
I could be wrong but I think I've finally got it. If I'm still wrong, please let me know.
At first, I thought these things were somehow magical power enhancers and I struggled to understand how they were 'amplifying power.'
They say you can't get something from nothing, I thought; But then, I think, I got it:
The old light dimmers generated a lot of heat because the could only reduce down energy by resistance; akin to poking a hole in your hose instead of just putting a kink in it.
Then, wondering where the extra power comes from, I realized the "base" source "amplifying the power" must be coming from the battery in my smartphone just as much as the emitter was coming from the battery as well (I realize I may have terms mixed up).
So then, these transistors must be a network of nodes for the cpu/os to select power needs based on path of amplification necessary for computing power.
That way if you need minimal power it bypasses transistors and if your gaming its likely the high usage of the millions of transistors in your phone generating heat.
But still in confusion I have questions such as:
Is it now transistors that govern my lightbulb without wasting heat? If so, how does one draw a 'thread of electricity' to go into the transistor, from something as powerful as 'mains' in order to create something as low powered as a charging base, without overheating (or is this just resistors still?)?
Am I way off? Am I close? I have no idea 😄! Please, help me 😄!
Proverbs 27:17
started out great then we got into pixies living in the transistor :)..then it stopped??? Basically I'm just trying to wrap my head around the concept of amplification of an AC signal from say a transducer/piezo/signal of some kind. I know what a transistor does, one of functions it performs is amplifies...but I want understand how it amplifies..how does it do the 100x amplification of the signal from base, You mentioned about the little man on the meter pumping up the collector current, trying to get the base to match...What is that magic process that is happening in there that boosts a signal. That current flowing in the collector is DC, the signal from Base is AC...thats where I'm at with it. All the beginners vids are too basic, all the technical explanations are over my head...I just need a big picture explanation..my brain won't let me take in new info unless I get a broad view. Obviously you have concocted transistor men to help you...I need more..their not working for me...although it did help a bit, but I want to know what else the transistor man does to amplify that AC signal/sound source. How does the AC get bound to the larger DC current...how does it grow bigger..get the little man to explain...I part 2?????
He has a wonderful video for how transistors work on the channel which you might want to check out
you just wrote down all my problems with transistors as well
Maybe the transistor itself creates some sort of potential energy with the electrons, so it wants to draw more current?
Here I go, replying to a 2 year old comment...
A preface - I'm a non-professional mildly-educated hobbyist electronic, so most of what I'll say here is either hearsay or my experiences.
The one thing that helped me understand transistors is realizing that they're not amplifiers - they're limiters. You have an external power source at the collector which is blocked from outputting its current to the emitter by the transistor. Only when you apply current to the base, the transistor will stop blocking power at the collector and allow this external power source to go through to the emitter.
A second rather important point to understand is that the amplification value isn't something you should really keep in your head much. The value itself, which usually is indeed around 100, can vary from 50 to 250 depending on its creation, even in transistors from the same production batch. It can also vary significantly depending on ambient temperature, the collector current, and other such things.
Because of that, you can't really depend on a certain and stable amplification value. What you should instead focus on is a saturated transistor - it's when the base current is bigger (I would say, significantly bigger) than the expected collector-emitter current divided by the amplification value. So for example if you plan on drawing 20mA, your base current should be way above 0.2mA. Then, the transistor basically functions as a switch - perfect for digital applications.
And if you're interested in how the actual transistor works, just google (or search on youtube) "transistor quantum mechanics"
raindogred just go read a microelectronic book dude, it’s not something you can understands within minutes. First understand the behaviour of semiconductors, the PN junction，“holes” and electrons , then mosfet and BJT, then you can start looking at the different modes of the operation of these transistors.
best explanation!!!
no
search up how transistor work
Great Explanation! Thank you Ben!
Damn, such a good analogy, made ma brain click :)
At 4:40 thru 5:00 minutes Ben glosses over something that I find to be the most confusing thing about working with electronics. In conventional circuit flow he describes the current as flowing from positive to negative. Then immediately says "of coarse we know that electrons actually flow from negative to positive". WTF? I thought I understood that electrons are negative (polarity) and flow to positive (polarity). In a DC system I was under the impression that a Positive Voltage represented a Larger Negative Charge. Hence the electrons do flow from positive to negative in that sense (and more importantly direction) while at the same time they are still flowing from the negative polarity to the positive (relative) polarity.
A transistor is a cage for a homunculus: got it! Man, I'm gonna ACE my exam.
By the way, if the transistor has an outside circle around, basicaly it means standalone discrete component in schematics, same as you use on the breadboard. It is drawn without circle, if the part is supposed to be integrated on chip in IC's.
why did you come here if you know all about it.
@@yashaswikulshreshtha1588 Because of my curiosity. I want to share such videos with my friends, whose are not skilled in this way.
@@TomasNM Nice, can tell why the transistor only amplifies current only not just both current and voltage
So.....it´s a little man inside de transistor. Thanks a lot.
best channel ever!
wronx
This would've been better if you'd stopped at "and the transistor tries to ensure that the collector current is 100 times the base current".
The "think of it as a little guy inside" thought experiment does not add to what was already said. It doesn't clarify anything, and it's not even an analogy for what really happens.
[a couple of days pass...]
That said, I'm currently going through the rest of your videos, and I'm really enjoying them. I'm familiar with how processors work on a higher level, but seeing one implemented as a collection of logic gates and seeing it in operation is quite enlightening. Thanks for all the work you put into this series!
I thought the little man was helpful.
excelente explicação!! Padrão Ben Eater
i love your videos
I'm assuming that the power source have to be able to source that additional current you are trying to accomplish.
Great videos sir really informative. Quite help me in my studies. Please upload more videos on 8 bit computer
@randogred, I just watched videos how transistor works, basically the transistor is not conductive by default, the base current will attract the electrons to the other side to become conductive, the more base current, the more electrons it attracts from emitter lead(electrons flow the opposite way) and the transistor becomes more conductive. Please correct me if I am wrong.
Thanks, bro.
Is the constant number(100) you chose Beta which is pre determined by the manufacturers?
Explained so well even my dumbass got it. Thanks!
This is a great channel I found it from the bread board video card. I'm interested in getting more involved with messing with electronics. Any good places for a beginner to check out.
I'm exactly the same, saw the breadboard video card now I've ended up ordering an arduino with electronics to get into all this for the first time and watching his videos from the start so I can learn everything else lol. Oh you can play around with circuits online as well, found a great site by autodesk that I use while waiting for my arduino kit to come in, tinkercad.com. Good luck though with everything ^_^
@@junehanabi1756 which arduino to buy , arduino uno(im beginner) ??? And how was the price you bought from the site ?
I know that you are all about ttl, but I would love to see you explain this same concept (amplification) with vacuum tubes.
thank you for this
One question there. To little guy to open up the resistor so current can flow 100 times as base current, collector should be fed with the 100 times current right.
So it works as a relay would. Just being able to switch super fast so it replicates the signal coming in? Do radios have a analog to Digital converter? I thought transistors are only for digital signals?
i'm definitely missing something :(
if it "amplifies" current from a lower energy source, where does it get its other energy source from to carry out the "amplification" process?
So is it correct to say, that Beta of a transistor is how the depletion region is affected by the base current?
Actually saying a transistor is an amplifier was misleading for me before I lean electronics, what happens is actually controlling a current in it's CE circuit side with a much smaller one in its base circuit side that makes it mimick the shape of a signal when biasing conditions are met.
When looking at a transistor data sheet where can I find the multiplier( the 100x the Base current thing)?
It is usually denoted by the symbol "beta" or as "hfe".
Or Gain
If the power source can output a Max of 1 amp.
The transistor will not be able to create an Ic of more than 1 amp.
Correct ??
Correct.
so helpfull thanks
Remember, if you don't get it the first time. Try to watch the video later, or look up a different video with a new explanation, and then continue the playlist.
Never give up!
Sir, I have a solar panel which gives 5v 100ma
I want to increase current to 1-2ampere to charge battery faster
How many transistors should I need to use
Where does it pull the x100 current? It must already be present right?
It reminds me of the Flintstones technology they use monkeys n animals to turn on and move things, the transistor has a tiny little guy inside that varies the Current collector with respect to how he Feels the Base on his Face.
Could you please add the missing part from the bipolar transitor? :) The video end abrupt ;)
this explanation is very helpful to me, thank you! so, in the end do we have 101 x IB from the Emitter? because it's 100 from Collector +1 from Base? i'm new to electronics.
IDK if my analogy is correct
since the emitter-base is forward biased the resistance because of depletion in the emitter-base junction is low and the electrons (majority charge carriers) will diffuse into the base and become minority charge carriers.
then some of these electrons (minority charge carriers) in the base recombine with holes and others don't because the base is lightly doped and is very small. These left electrons still carry the energy drift into the collector which is reversed and biased which collects these electrons.
There is an electric field from base to emitter due to diffusion and another electric field in the same direction from collector to base due to drift. and since both these electric fields are in the same direction the transistor works as an amplifier.
is this analogy correct?
can't we amplify current in our desired value using transistor??
i assume you mean to a desired value: well i assume that β is a variable constant for each transistor, with that being said i assume you would be able to amplify with exactly that proportionality I_B*β=I_C.
Hi Ben, i have a question. Given that a transistor actually amplifies the amount of current flowing through the circuit, how is this obtained without increasing the voltage? Because according to ohm's law, the current is proportional to the electric potential and inversely proportional to the resistance. Since, I assume, the transistor cannot manipulate the value of the resistor which is already plugged into the circuit, how does it work?
If you're talking about how the transistor is able to manipulate the collector current, you can think if it like the the internal resistance of the transistor decreasing with an increasing base current. So if you look at ohm's law, the base current is increasing because the resistance is decreasing
I have the same question. It’s like it’s magic’ing more power from somewhere?!
From what I've just watched there is no explanation of how it's amplifying. How is it 100x the base. Is the output of the emitter limited by the input collector
New to electronics,
Is the amount the current can be amplified limited to the batteries current? E.g hypothetical, let's say humans found a new power source that had 12v potential, but the current was limited to a picoamp (lol), could a transistor, or any other component or circuit boost/amplify the current, or does that go angianst physics?
Sorry if question is dumb 🤤
But why does it amplify current, what's the science/physics behind the amplification?
Ah,the magic of the infinite feedback loops
ben eater am a big fan did you stop posting videos ....
How can the transistor boost the maximum 0.2mA to 20mA (x100) over a constant voltage, wouldn't that produce energy??
oh lmaoo.. ofcourse you need an outside power source.. I saw the next few videos.
Now I feel bad for all the little guys inside my unused transistors with nothing to do
"This is a little fuck bubble here" xD
dear Ben, may I ask you, which black board tool you are using in the video tutorial. Thanks a lot and kind regards, stephan
Could be as simple as microsoft paint, fill it with black, and erase by selecting black again and drawing over stuff.
what if the IB is too much?
I understand that Ic is 100 times bigger but , why ?
The little guy should be on a shirt
Trying to understand how a transistor amplifies current, watched this video, was simply told that for some reason a transistor does amplify current and that reason is there's a little man inside the transistor looking at two monitors...is this a childrens program?😂
By looking at it from "conventional current flow", you have confused the issue. The base could not modulate the collector if the current were flowing from the collector inward to the emitter. The only way it is modulating the current of the collector is if the collector collects an amplified signal from the base. This is the main problem I have with using this convention, because it confuses people like me trying to understand electronics, and acts as a gateway, just like the base does, for keeping people who don't want to deal with that bullshit from getting into this realm of knowledge. Now that I can think of it in terms of the current flowing towards the collector, it all makes sense, but at first, you had me very confused until I googled where the current is going in a transistor. I hope this teaches someone something about...well, teaching
and.... according to the statement at 3:11, the little man suffers from bi-polar disorder... LOL. Seriously though, excellent video series.
where was this channel hiding the hole damn time
I'm pretty sure you cannot explain why a transistor works with an electronics schematic. I once saw a video (which to my frustration I can't find now and end up watching all these videos where people simply explain why a current can pass through a transistor) where, I think it was Richard Feynman was talking about the development of Quantum Mechanics and how this has made the transistor possible. As I understand it: The material of a transistor is able to output more energy than you put into it and this has something to do with the discrete energy levels (orbits if you will) that electrons are forced to be in. They can jump (completely counter to classical-mechanics) from a lower energy state to a higher energy state. I'm pretty sure it was explained that this is what makes the amplification possible. And most of what was left to do was figure out how to pick/make? the right material that would have this property. But alas I can't find this very good video.
Wrong. It doesn't amply.
Video explaining how the little guy inside the transistor actually works: th-cam.com/video/DXvAlwMAxiA/w-d-xo.html
Fun to know that my computer is being run by about 1 billion microscopic little men (except they are probably reading voltmeters because computers use MOSFETS).
sir can u give me a idea to amplify the current rate upto 10x times for example i have a current rate of 100 ma op is must boost it to 1A or at least to 500 ma please help me
Still doesn't explain the 100 number? Seems like every video the 100 gets plucked out of thin air? Why is there no perfect explanation that answers all questions related to this one topic?
This. Might need a book for that.
Why don't they just give us these videos at school instead of waisting our time
I'm bipolar don't come near me 😂
great video. not so x, say anyx no matter whatx, no such thing as little or bix
🍝🦆
transistor guy lives matter... take good care of your electronics...
like turning up your headphones when you hear your wife in the other room!
I really love your videos, but this is tooo basic (just for little kids)
And now we know all about you Andreas. . . . .
That is one very short world of experience and consideration for the needs of others you have their. You see nothing outside your own closed in world. It's all about you isn't it.
No consideration for the needs of others with you eh boy.
Clearly you think that adults at 58 years old coming to electronics for the 1st time are little kids.
I learned from this man's best efforts to educate me. I thank him for it. Not you.
Shallow and inconsiderate of the needs of learning at any age.
Moron. Think bigger.