How LED Works - Unravel the Mysteries of How LEDs Work!

How do LEDs work?

In this video, we'll explain LED technology in an easy to understand way. We'll cover the different types of LED lights, the different colors that LEDs can emit, and the different applications for LED technology and how they work.

LEDs used

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power electronics, electron hole, advantages of the led, smd led, kicad
#electronics #engineering #learning

[robertrocheville]

That was, by far, the best explanation of how LEDs work I have ever seen.
Super in depth, while not talking over our heads.

[botcontador]

I got here referenced from Derek's ( Veritassium ) video "Why It Was Almost Impossible to Make the Blue LED". So cool.

[rdhunkins]

Well done. This explained Diodes in minutes what took days for my professor in college to do back in the ‘80s.

[CodyLynn]

Another LED type that I learned about a few weeks ago is called an addressable LED. It’s a bit beyond this video, but worth noting for the advanced users as it allows multiple LEDs to be controlled at different colors each using only one signal pin on a microcontroller.

It is a LED with an internal microcontroller that can be gotten as either RGB or RGBW and is controlled by a high low signal. The LEDs are chained in sequential order by their signal pins. To control them, a signal is sent containing the information for all the LEDs in the chain. The first LED removes its instructions and then sends the remaining signal to the next LED. These LEDs can be bought individually or in LED strips.

[raajnivas]

You are wonderful, man. Explaining such a wide spectrum of electronics, in such brief lucidly.

[taiwanluthiers]

LED's are basically amazing stuff. When I was little I only saw LED in red or green, and they were very dim, only useful for indicator lights on various machines.

Then someone invented blue LED and now LED has basically replaced light bulbs.

[superspak]

This is one of the best videos I've ever seen. Easy to digest for any level of familiarity of sciences, with amazing infographics. Keep up the great work.

[radonato]

I love how, when adjusting the ratios of GaAs and GaP (GaAsP), you had the audience GASP every time the light came on.
Subtle, yet beautiful.

[misugijun]

Best video i have seen so far informing us about LEDs. Thanks very much for high quality content and the effort put into it. I really appreciate you supported your theoretical background together with circuit diagraghms and also making it on breadboards just to let us see how it looks. It definitely would tale a lot of effort and time. That is very much appreciated.

[stefanolassandro]

This was extremely fun and engaging, thank you so much for the high quality content mate

[pepe]

hands down the best explanation of LEDs from start to finish. this needs to go on the reference shelf. thank you sir.

[merlin]

An incredibly well detailed video& very well put together. Cheers. 👍

[tonytor]

Excellent video. Being an old TV, RADIO. Repairman in the 70’s I have a steep learning curve ahead of me. MOSFET was the cutting edge of the cutting edge when I started Medical School. Now at age 70, I am still seeing patients but am getting back into electronics. In my life as a physician, I met many veterans from WW2 and into the early 1950’s. Learned a lot once their NDA’s expired. Amazing what they were able to do with vacuum tubes! Now, something I would appreciate your expert opinion.
I learned physics in undergrad, Kozarev’s theories, which he proved to a certain pin extent, were fully validated in the Mid to late 80’s and 90’s. The physics of his Spiral mirror are amazing but well beyond my math level. I found out last year of a recent experiment in the last 10 years, they were able to SEE the Pleiades where they currently are both with light telescope and radio-telescope when using the Kosarev spiral mirror in conjunction. The Pleiades are 1200 light years away. This would indicate that Kozarev’s mirror is able to receive tachyons or other similar particles. There is a documentary on YouTube about the experiments that were tried in an area of low magnetic field near the North pole. Please let me know what your thoughts are on this scientifically proven but quire mysterious device. My name is Sergio AKA Dr. T🖖🏼

[TheGuracao]

I absolutely love the pace and information density in your videos!

[Shiva-diva]

The explication of the n and p type materials was so clear. I don’t think I’ve ever seen it done that well. Bravo!

[brianwood]

Brilliant video, Paul, full of explanation and detail. Just the thing to get young brains excited. Thanks for sharing.

[stabilini]

Amazing super condensed info about LEDs. Best video on this topic I've ever seen.

[jensschroder]

For a long time, LEDs could only be produced in the colors infrared, red, orange, yellow and green.
It was not until 1990 that blue LEDs and thus also white LEDs could be developed.
I know that back then cars used blue bulbs instead of LEDs for high beam indicators.

[Cmm]

Is it just me or is the theatrics of these vids getting better and better?! Great edit and info I learn so much from you!

[danbrit]

Truly thank you for this ..I have wounded my hole life the science behind the led but every time I researched I got the basics of power gose hear and light ...not a single person on this planet in 30 years bothered to actually go deeper... So truly thank you 💖