This is probably the best breakdown explanation of how diodes and LEDs work i have seen. Looking forward to using it to help electrical apprentices understand the internal workings of LED's. Thanks
At the core of every LED is a combination of two materials: N-doped and P-doped semiconductors. N-doped silicon, infused with elements like arsenic, carries extra electrons, while P-doped silicon, infused with elements like gallium, is characterized by "holes" where electrons can reside. When these two materials are placed together, a small but powerful phenomenon occurs-some electrons from the N-doped side flow into the P-doped side, creating what’s called a depletion zone.
After reading about diodes for over 50 years, I finally get it. One has to truly understand what happens at the subatomic level. What a brilliant presentation. So very well done, thank you.
I was fortunate to be a technician on a research vessel and was tasked to illuminate evenly split hard rock core samples. The area to be illuminated was only 40 mm in-depth but in order to achieve the depth of field which was specified by the design criteria, the intensity if the illumination required the light source to be very close. 100 mm. As light dissipates to the square of the distance, the very bottom illumination would have “fallen off” enough to be visually detected. As the intensity of LED’s can be increased and decreased without change in color temperatures, I was able to make an array of lights and varied the voltage to paint evenly from top to bottom. This would have been impossible with halogen, fluorescence or other types of illumination. LED lighting was key, however we had to match color temperatures of all of the lights in the array because of the lack of consistency in manufacturing. Also LED lights are extremely heat sensitive and will change color temperature over time. It is a newer technology and has its share of growing pains if accuracy and consistency is needed.
This is seriously good science at a level and with language that I can understand. color temperature was an early problem with LED light sources. the temp was "cold" and ugly. Quite quickly, manufacturers figured out how to add contaminants to give a warmer light.
Hello, thanks a lot for this brilliant explanation! I finally grasped, how diodes, transistors and LEDs are working. Really excellent, this video. Greetings from France, Manfred
Transistors are very different, but do use two junctions, the main ones I used were n-p-n junctions so worked easier with +V supply voltages on the Collector. . . . Transistors are Current amplifiers, not Voltage amplifiers like Valves ( Tubes ) were, although modern FET Transistors are Voltage amplifiers.. . . The simple principle of using a normal BJT transistor, the most common type. . . Is that you put + Voltage onto the Anode or Collector and due to the junctions, no current ( electrons ) flows between the Emitter to Collector.. . But If you put some +V on to the Base, then that easily causes Current to flow between the Emitter and Base, which then opens up the path for good Emitter to Collector current flow. . . . Very typically you could get about 100 times as much Current flowing between Emitter to Collector, as the Current you made between Emitter to Base.. . We call that a current Gain or Hfe
I was a project manager at EMI Research (UK) in the 1970s. One of my engineers had used one of the new green LEDs to indicate that his system had passed all fault checks. My boss, an assistant director, was appalled at the extravagance of using a green LED.
I had never imagined coming across such beautiful explanation. Your effort in producing such videos can never be less than the excellence of nobility 👏👏👏
I am in high school and to be honest we haven't learned anything about diodes yet but I wanna learn more. And this is the only video I have found that explains what leds are in more detail. Others just assume you know what a diode is Thanks
Reverse polarization of a PN junction can be used to vary the capacitance of the junction, turning it into a variable capacitor for radio applications.
Now that is getting far more into electronics.. .. Yes, VeriCaps. . . Going even further, we made Parametric Amplifiers for Microwave Receivers, using that principle.. . . A parametric amplifier principle is that you feed the signal in, when the Capacitor value is high, then you effectively pull the plates apart, reducing the capacitance value, which from ½C.V² will now have to increase the Voltage across that capacitor. . . So now you have a Voltage amplifier for very small, low level signals. . :-)
Yay!!!, Shows REAL current flow (NEG to POS)! Why do so many diagrams to THIS day show "conventional flow" (POS to NEG) whenever a battery (or cell) is involved?!? (Drives me nuts!) Thank you for doing it RIGHT! Earned a sub!
Great video...Thank you! I didn't realize how much we knew about LEDs back in the 60's. Or 70s - recent, actually. Technology was mostly there, it seems... but not quite.
![VirtualBrain [ENG]](http://yt3.ggpht.com/cCeT9rbWqy42GTD5p3hRlgiLsEW_E5k9tKQZkudZTFmq7Z2OGvctXXivbbLTqHKqKvCfQliYdw=s48-c-k-c0x00ffffff-no-rj)
This is probably the best breakdown explanation of how diodes and LEDs work i have seen. Looking forward to using it to help electrical apprentices understand the internal workings of LED's. Thanks
I have very similar views so there is no need for a duplicate comment!
@@yousafzaiaa7453 Me too!
Me too
Same
No
I casually have seen many many videos of diodes and semi conductors, but this video is explicit and straight to the chase and I've finally understood
At the core of every LED is a combination of two materials: N-doped and P-doped semiconductors. N-doped silicon, infused with elements like arsenic, carries extra electrons, while P-doped silicon, infused with elements like gallium, is characterized by "holes" where electrons can reside. When these two materials are placed together, a small but powerful phenomenon occurs-some electrons from the N-doped side flow into the P-doped side, creating what’s called a depletion zone.
This is the best explanation of semiconductors and LEDs I've ever seen. Exceptionally well done.
Thanks!
Best explanation..... Now i know how my led bulb works 😄
And at the end when explanation is done by zooming out the led buld is thrilling 😅
After reading about diodes for over 50 years, I finally get it. One has to truly understand what happens at the subatomic level. What a brilliant presentation. So very well done, thank you.
That's one of the clearest descriptions of anything I've ever seen.
Underrated Content. Your clear and cogent explanation deserves more views, man. 😭
Cant believe how good explained that was. I had it played fast forward on 2x and understood every single bit. Love it
Very educational and clear. I'm really happy to know how these work now!
Hats off to you for helping me FINALLY understanding WHERE the light actually is emitted from. Fascinating.
I was fortunate to be a technician on a research vessel and was tasked to illuminate evenly split hard rock core samples. The area to be illuminated was only 40 mm in-depth but in order to achieve the depth of field which was specified by the design criteria, the intensity if the illumination required the light source to be very close. 100 mm. As light dissipates to the square of the distance, the very bottom illumination would have “fallen off” enough to be visually detected. As the intensity of LED’s can be increased and decreased without change in color temperatures, I was able to make an array of lights and varied the voltage to paint evenly from top to bottom. This would have been impossible with halogen, fluorescence or other types of illumination. LED lighting was key, however we had to match color temperatures of all of the lights in the array because of the lack of consistency in manufacturing. Also LED lights are extremely heat sensitive and will change color temperature over time. It is a newer technology and has its share of growing pains if accuracy and consistency is needed.
ledI make LEDs.
This is seriously good science at a level and with language that I can understand. color temperature was an early problem with LED light sources. the temp was "cold" and ugly. Quite quickly, manufacturers figured out how to add contaminants to give a warmer light.
that's the best description i've ever seen. Bravo
Excellent video! I've known diodes and studied them. This is gold. Thank you.
Best Explanation I've ever heard about any kinda diode. Hats off man
As a physics teacher I say: Grand way of explaining the basics of this phenomenon! Thank you for your great animation/ rendering! Michael B. Butter
Thank you for a detailed yet easily understandable explanation.
Brilliant. This channel has a bright future.
extremely aesthetically pleasing animations
Nice clear explanation. Thanks for all the effort you put into these. And those graphics!
Hello, thanks a lot for this brilliant explanation! I finally grasped, how diodes, transistors and LEDs are working. Really excellent, this video. Greetings from France, Manfred
I make led lamp beads.
Transistors are very different, but do use two junctions, the main ones I used were n-p-n junctions so worked easier with +V supply voltages on the Collector. . . . Transistors are Current amplifiers, not Voltage amplifiers like Valves ( Tubes ) were, although modern FET Transistors are Voltage amplifiers.. . .
The simple principle of using a normal BJT transistor, the most common type. . . Is that you put + Voltage onto the Anode or Collector and due to the junctions, no current ( electrons ) flows between the Emitter to Collector.. . But If you put some +V on to the Base, then that easily causes Current to flow between the Emitter and Base, which then opens up the path for good Emitter to Collector current flow. . . . Very typically you could get about 100 times as much Current flowing between Emitter to Collector, as the Current you made between Emitter to Base.. . We call that a current Gain or Hfe
This was excellent! I had watched other tutorials before but this opened my understanding! Thank you!
Former engineering student here... this was very nice work.
That was an enlightening video on LED’s and Diodes. Thank you for sharing.
pun intended?
Sir,
Good demostration
Thank
thank you for the clear explanation
Excellent and to the point! I'll save this video as a handy reference.
Ohh What a crystal clear explanation of electrons transitioning from Conduction band to valence band ❤from India
Thanks for the well animated explanation
I was a project manager at EMI Research (UK) in the 1970s. One of my engineers had used one of the new green LEDs to indicate that his system had passed all fault checks. My boss, an assistant director, was appalled at the extravagance of using a green LED.
How you are still alive
@@noobda597 Don't smoke, ride a bicycle daily, inherited the right DNA. Plus I was younger than most of my engineers at EMI.
And some extremely important scientist back decades ago sad he couldn’t see the need for any more than 3 computers. 😉
ok
Or 640K of RAM@@Handleyman
Best explanation i've had in this regard so far
Thx for the brief explanation
I forgot everything after I graduated since my current job does not require any electronic knowledge. It is a very nice recap for me.
Very nice. It answered my question more than i expected!
That is great 😁
as simple as it looks but details of how it actually works is complicated, salute to those great minds who invented this "everyday use" tech.
tank you. excellent video dude.
Okay this was so clear.. I had to subscribe. Amazing examples and explanation. My compliments.
great visual description!
I had never imagined coming across such beautiful explanation. Your effort in producing such videos can never be less than the excellence of nobility 👏👏👏
Thanks I got New TH-cam Channel from this video to learn more knowledge.
This is a cool channel that my brain just absorbs every minute of the content.
Very good explanation . Encouragement for those who in this field.👍
One of the best explanation ever, thanks a lot
It was verrry nice and helpful. thank you
You deserve more subscribers man....
hats off
i have been searching for this information forever. thanks for answering in such a simple video.
Any questions. ?
beautiful presentation, the best i have seen
Definitely the person who explained is a best visualiser....my god ...just blown away😅🌟
Well done, nice video.
You are such a great orator
Great content and presentation. 🇦🇺 😊
Fantastically explained
The best video I saw today !
Your sincerely Fereydoon shekofte
And **DARZHELFARSHELKHOPH** TO YOU
Nice video.
Wow! Very interesting. Thanks!
man, bad ass infotainment right here
Excellent explanation in order to all parameter considered
This video is exactly what I wanted to watch.
Very neat explanation,thank you so much.
Thank you! This was perfect!
Great animation and explanation well done
To me LED is an amazing
Electronics miracle,
the way explained
enabled me to understand the badics
so easily !
Keep it up, please.
Very good illustration and explained
Great exsplanation! Now tell me how this was ever figured out!!!!!😮
I am in high school and to be honest we haven't learned anything about diodes yet but I wanna learn more. And this is the only video I have found that explains what leds are in more detail.
Others just assume you know what a diode is
Thanks
Do you have any questions you would like to ask me, about Diodes or Transistors. ?
Good work. Great animations. I understand LEDs now :)
Best explanation ever. 👍❤
Best of the best i have ever seen😊
EXCELLENT DEMONSTRATION OF LED LIGHT . Thanks .
Great explanation
Reverse polarization of a PN junction can be used to vary the capacitance of the junction, turning it into a variable capacitor for radio applications.
Electrically tunable radios before Sorfware Radios used these and they were called Varactors, such as the MV204.
Now that is getting far more into electronics.. .. Yes, VeriCaps. . . Going even further, we made Parametric Amplifiers for Microwave Receivers, using that principle.. . . A parametric amplifier principle is that you feed the signal in, when the Capacitor value is high, then you effectively pull the plates apart, reducing the capacitance value, which from ½C.V² will now have to increase the Voltage across that capacitor. . . So now you have a Voltage amplifier for very small, low level signals. . :-)
Beautifully explained. Thanks.
Simply excelent explanation
Entirely superb! Thank-you!
very interesting videos , thank you
Very well explained, thanks.
That's the explanation we all wanted. Thank you so much bro
Thank you very much for your wonderful simple explanation 🤩🌹💯
This is very helpful
Nicely presented.
Subscription owned. Great video, thanks :)
Super explanation!
Yay!!!, Shows REAL current flow (NEG to POS)! Why do so many diagrams to THIS day show "conventional flow" (POS to NEG) whenever a battery (or cell) is involved?!? (Drives me nuts!) Thank you for doing it RIGHT! Earned a sub!
Don't look at a pc board or you may lose it. Did you know that the arrow on a real diode points in the direction of conventional current flow :)
@@ACitizenOfOurWorld Oh, yeah, I know. 🤔😖
woaaaaaaaaaoaooooooowwwww !
your animation & explanation is so so valuable ! Thanks for teaching me ! 7099 respect & 6700 love for you !
Amazing video, Thank you
Great video...Thank you! I didn't realize how much we knew about LEDs back in the 60's. Or 70s - recent, actually. Technology was mostly there, it seems... but not quite.
Nice. Didn't learn anything I didn't ALREADY know...lol. seriously though, nice breakdown. Very informative.
Amazing video! 👍👍
Great and much more in depth than most!
I was skeptical with the robot voice, but this was great! Solidly animated explanation.
Thanks for the video. I enjoyed it.
Amazing explanation.😁😁
Nice information with very greatly explaining ability. Great work.
1st class video to watch thank you take care kind regards from me kenneth
Very good video. Thanks.
Very well done!
It helped me alot
VERY EDUCATIVE. tHANK YOU REGARDS
Wow, so amazing vdo.
I love it
Very well conected topic with Animation to get to the point more compehensive ...
Great video, thanks👍