How does a Light Emitting Diode or LED work?
HTML-код
- Опубликовано: 28 апр 2018
- A SIMPLE explanation of Light Emitting Diodes (LEDs). Learn how an LED works, its working principle, and the difference between it and pn diodes. If you want to learn more about Light Emitting Diodes (LEDs), check out our in-depth post at: www.electrical4u.com/working-...
Light Emitting Diode which we also call L.E.D is nothing but like p n junction diode. Nowadays L.E.D’s are most widely used in semiconductor diodes. This diode emits light when it forward biased. Normally this diode is formed by a p n junction. This is the semiconductor p n junction. This diode has two terminals anode and cathode.
This is anode or positive terminal. This is cathode or negative terminal. The p n junction is surrounding by a transparent hard plastic epoxy resin hemispherical-shaped shell to protect the diode from external shock.This is the transparent cover of the diode.
Although we have already said that L.E.D is same as ordinary p n junction diode but it is also true that ordinary p n junction diode does not emit light when it is forward biased. Now we will try to explain what is the speciality of L.E.D? So that it can emit light which other cannot.
Comment below with any additional questions you have. If you enjoyed this video from Electrical4U and want to see more like it, please LIKE and SUBSCRIBE to our RUclips channel.
Thank you for watching!
If you want to learn more about LEDs, you can read our full article at:
www.electrical4u.com/working-principle-of-light-emitting-diode/
*THIS CHANNEL DESERVES MILLION SUBSCRIBERS*
Is E4U not making content anymore? Great resource. I just found them but noticed there hasn't been a video in over two years
Thank you for informal Content
Thanks for the detailed, yet easy to understand, explanation!
Got what i needed.... Thnxx... Why led emit light and why diode do not emit light ? Due to direct and indirect gap semiconductor respectively.
Nice way of explanation. Thanks.
Good explanation given in this video. Its easy to understand the concept of LED by watching this video.
Vidhyakshethra
Amazing video. And, whoever disliked the video… certainly know little about physics.
Wow ❤ video is really helpful but why this channel don't post Video???
Make videos on waves
fabulous thanks
No problem Shihong! :)
Why this channel stopped uploading videos?
Sir your vedio are super sir
Sir best books for tneb in eee department ku solunga sir please
Thank you for your kind words Tamilarasi! I'm glad they are helping you :)
@@tamilarasivengadesan3463 If I understood you correctly - you're looking for recommendations on Electrical Engineering textbooks?
I FEEL All This Active.ElectroMagneto Energy within my Chemistry going on biologically in my Body As we speak Right Now what an amazing Creation We Are
Super da potta 💕❤🔥
Nonono. We should be thanking you! 😊
Hey why U guys stoped making content
So then the so called "holes" are unfilled "shells" in a fixed atom?That is to say, this is the valence band, or these unfilled shells of all of theses atoms in the bulk of the semiconductor material.
🤞👌
Need Hindi language VDO
Is the channel dead?
Nope :)
@@electrical4you I was thinking about it for a long time. This is the only video I got. Please also explain CFL, energy savers etc.
@@electrical4you please upload more videos and also do make an android app for electrical4u
Here am i for the request I made to you in your mail for the str....by you on my channel
Hi there😮😮😮😮😅😅😮
I still don’t understand how led diodes works. This video had way to many internal technical words and explanations that normal people don’t understand. And if you do understand them you’d probably wont need to see this video..