Transistors Explained - How transistors work
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Date: 2023-11-17
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Comments and reviews: 22
Eric
It makes sense for a electron to flow from a negative place to a positive place because it's a negatively charged particle. For most other things positive means (high concentration) so positive flows to negative (nature abhors a vacuum) But electrons are a negative particle, so a negative means there's lots of them and a positive means there's few of them. They go from the crowded room to the less crowded room.
This is important because conventional current can confuse someone as it turns a emitter pin into a collector pin and vice versa.
In fact in a transistor current flows from the emitter to the collector and is controlled by the base.
For anyone confused, conventional current was invented before we understood that electrons were negative and probably before we understood atomic physics in detail.
But it usually doesn't have much of an effect on circuit design because for most components it doesn't matter what direction the current flows only that it does.
But its a outdated incorrect way of looking at things.
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It makes sense for a electron to flow from a negative place to a positive place because it's a negatively charged particle. For most other things positive means (high concentration) so positive flows to negative (nature abhors a vacuum) But electrons are a negative particle, so a negative means there's lots of them and a positive means there's few of them. They go from the crowded room to the less crowded room.
This is important because conventional current can confuse someone as it turns a emitter pin into a collector pin and vice versa.
In fact in a transistor current flows from the emitter to the collector and is controlled by the base.
For anyone confused, conventional current was invented before we understood that electrons were negative and probably before we understood atomic physics in detail.
But it usually doesn't have much of an effect on circuit design because for most components it doesn't matter what direction the current flows only that it does.
But its a outdated incorrect way of looking at things.
reply
Chris
0: 17: A transistor is an important electronic component that can act as a switch and amplify signals.
4: 01: This text explains how a transistor works and its applications.
6: 38: The video explains how transistors work and the direction of electron flow.
9: 48: The structure of a conductor atom, the role of valence and conduction bands, and the concept of doping in semiconductors.
12: 50: The process of forming a PN junction and its behavior in a transistor.
16: 08: The video explains how a transistor works in a P-type material with reverse bias.
Recap by Tammy AI
reply
0: 17: A transistor is an important electronic component that can act as a switch and amplify signals.
4: 01: This text explains how a transistor works and its applications.
6: 38: The video explains how transistors work and the direction of electron flow.
9: 48: The structure of a conductor atom, the role of valence and conduction bands, and the concept of doping in semiconductors.
12: 50: The process of forming a PN junction and its behavior in a transistor.
16: 08: The video explains how a transistor works in a P-type material with reverse bias.
Recap by Tammy AI
reply
Knowledge
I used to believe I wasn't proficient in academics, as it took me seven years to complete my Btech course, and I ultimately couldn't achieve success, leading to my dropout. However, upon viewing this video, I have come to recognize that the primary responsibility for my struggles should be attributed to the teacher who instructed the subject. Now, having watched this video, I find that I can effortlessly grasp the same material that once posed challenges for me. Thank you very much for saving me.
reply
I used to believe I wasn't proficient in academics, as it took me seven years to complete my Btech course, and I ultimately couldn't achieve success, leading to my dropout. However, upon viewing this video, I have come to recognize that the primary responsibility for my struggles should be attributed to the teacher who instructed the subject. Now, having watched this video, I find that I can effortlessly grasp the same material that once posed challenges for me. Thank you very much for saving me.
reply
education
Excellent video explanation on how transistors work! It's a fundamental topic in electronics and electrical engineering, and your breakdown of the different types, circuit basics, and applications is very informative. Looking forward to more content from you on these subjects! #Transistors #Electronics #ElectricalEngineering
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Excellent video explanation on how transistors work! It's a fundamental topic in electronics and electrical engineering, and your breakdown of the different types, circuit basics, and applications is very informative. Looking forward to more content from you on these subjects! #Transistors #Electronics #ElectricalEngineering
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macknumber9
I'm only getting. 5v to the base pin. where should I look next? It is a refrigerator. symptoms are relay keeps burning out. will work for a while but then relay starts rattling and sparking. it is getting power to pull the contacts together but it is arcing because it isn't a strong enough pull
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I'm only getting. 5v to the base pin. where should I look next? It is a refrigerator. symptoms are relay keeps burning out. will work for a while but then relay starts rattling and sparking. it is getting power to pull the contacts together but it is arcing because it isn't a strong enough pull
reply
Riccardo
I am an engineer and if professor at the university explained in THIS way I supposed that everyone continued the carreer as engineer instead go as developers, managers, architect. I appreciated as well the different way of see transistor behavior with this video. Thanks
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I am an engineer and if professor at the university explained in THIS way I supposed that everyone continued the carreer as engineer instead go as developers, managers, architect. I appreciated as well the different way of see transistor behavior with this video. Thanks
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David
So, when designing a circuit or including a resistor, diode, transistor or any biased component, should we reverse the wire hookup to make up for electron flow or conventional flow? Dam conventional and electron flow is so dam confusing.
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So, when designing a circuit or including a resistor, diode, transistor or any biased component, should we reverse the wire hookup to make up for electron flow or conventional flow? Dam conventional and electron flow is so dam confusing.
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Bruce
Thank you for reminding the difference between conventional current vs elecron flow and how components is labeled in current not actual flow. This messed me up early on. flow is EXACT OPPOSITE direction of current.
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Thank you for reminding the difference between conventional current vs elecron flow and how components is labeled in current not actual flow. This messed me up early on. flow is EXACT OPPOSITE direction of current.
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Saravanan
oh Man! You explained what they taught me in Electronics Engineering course in one semester in just a 18 min video with much more clarity. Thanks a lot. This is one of the best educational video.
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oh Man! You explained what they taught me in Electronics Engineering course in one semester in just a 18 min video with much more clarity. Thanks a lot. This is one of the best educational video.
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AeroFlame666
Good but question, why does this show conventional flow in the diagrams is there a reason
Edit: why do we use them in design diagrams not in his diagrams I mean wont it be innacurate
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Good but question, why does this show conventional flow in the diagrams is there a reason
Edit: why do we use them in design diagrams not in his diagrams I mean wont it be innacurate
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Giuseppe
Reading the comments I think I am the only one who doesn't have a clue of what's going on even after viewing the video 3 times, I feel so dumb: (
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Reading the comments I think I am the only one who doesn't have a clue of what's going on even after viewing the video 3 times, I feel so dumb: (
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Ryan
Transistor based amps for guitars have gone a long way. Amps like the Orange Super Crush 100 and the Boss Katana have no tubes and sound fantastic.
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Transistor based amps for guitars have gone a long way. Amps like the Orange Super Crush 100 and the Boss Katana have no tubes and sound fantastic.
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BB. W
General mantance. this is wearer never in my life would I put or see that plumming/water and. Electrity. .hard to explain. work in same fashion.
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General mantance. this is wearer never in my life would I put or see that plumming/water and. Electrity. .hard to explain. work in same fashion.
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Nurtastube
I didn't understand the pnp transistor because only electrons flow through the wires. And here it flows from the positive to the negative
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I didn't understand the pnp transistor because only electrons flow through the wires. And here it flows from the positive to the negative
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XMG3
any chance you can explain it like I'm 5 what the difference is between transistors and potentiometers? Just seem like they do the same thing
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any chance you can explain it like I'm 5 what the difference is between transistors and potentiometers? Just seem like they do the same thing
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Lynn
This really helps me a lot. Even though I repeatedly learned from the book, I didn't understand the transistors until I watched this video
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This really helps me a lot. Even though I repeatedly learned from the book, I didn't understand the transistors until I watched this video
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Pepper
I've been looking for a video that explains transistors in a way I can understand. Not one has done it except for this one. Thank you
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I've been looking for a video that explains transistors in a way I can understand. Not one has done it except for this one. Thank you
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ChadAF
Thank you! I need videos like this for all aspects of electronics! This is so much easier to follow than anything else I have seen
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Thank you! I need videos like this for all aspects of electronics! This is so much easier to follow than anything else I have seen
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khush18
I have often heard the phrase that transistor may be the greatest invention in humanity. What do electricians think of this?
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I have often heard the phrase that transistor may be the greatest invention in humanity. What do electricians think of this?
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BrainOverLoad
My biggest question is that if electrons flow from negative to positive why do we put a resistor after the LED?
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My biggest question is that if electrons flow from negative to positive why do we put a resistor after the LED?
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Titos301
i really try not to like your videos but i simply cant, there are great! Thank you and greetings from Greece
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i really try not to like your videos but i simply cant, there are great! Thank you and greetings from Greece
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Sangeetha
I feel the schools should be made illegal, because they robbed me of this knowledge: D Amazing video!
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I feel the schools should be made illegal, because they robbed me of this knowledge: D Amazing video!
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