This is How Diodes Work

[@EngineeringMindset]

*These videos take a long time to make* if you would like to buy Paul a coffee to say thanks, link below: ☕ PayPal: www.paypal.me/TheEngineerinMindset Channel membership: kzbin.info/door/k0fGHsCEzGig-rSzkfCjMwjoin Patreon: www.patreon.com/theengineeringmindset

[@CommercialGasEngineerVideos]

Keep up the good work. Best engineering channel in town.

[@yourin8er]

3:11 thank for saying it both ways. Very cool.

[@AJMjazz]

Best explanation of the chemical/atomic level action of conductors, insulators and doping of silicon.

[@piranha1337]

In the last year I've seen several examples and never got my head around it. This is finally making sense now. I just also understood PNP and NPN transistors. Wow.

[@richard1113]

Wow! I've always known that diodes keep electrons flowing in one direction but never knew how it actually worked. Thanks for the video!

[@robertfindley921]

Nicely done. I have a PhD in EE and couldn't have done it better myself. Cheers!

[@scaggsinforms8854]

This is similar to the explanation my College profs gave in the Electronics Technician program I graduated from in 1979. For some reason this explanation makes a ton more sense than it did back in 'college. Obviously this explanation is enhanced by using the animation and thus easy to understand. After 43 years I am finally able to claim I UNDERSTAND how diodes work rather than just forward biased the switch is on and in reverse biased the switch is off. It is true, a picture is worth a thousand words, and an animation is the pathway to understanding. Great job. Three thumbs up. First time I have ever given more than two thumbs for anything.

[@donerickson7305]

This is great. Maybe I missed something but it said the energy has to be more than 0.7v and the battery shown is 0.5v

[@victormontes9958]

You’re right

[@bellowphone]

I noticed that and I believe it was just a typographical error; such a battery as pictured is 1.5 V.

[@isaacturner199]

It's not an error as some have guessed. When the battery is shown as 0.5v, you can see the flow stop. He could have elaborated on the demo more, but it was to show that 0.5v would not allow the electrons to pass the barrier.

[@daveb7999]

Thank You, your explanations and diagrams are clear and easy to follow, I always look forward to watching more of your videos.

[@TheTonyMcD]

That was an awesome video, really gave an excellent explanation on how diodes function. I always knew they were very simple devices, but I didn't realize that it was literally just a piece of p-silicon attached to a piece of n-silicon. That's crazy!

[@finwwwfinwww4669]

in my 4 y of college and 2 y of higher studies no one ever taught me in such simple and applicable way..... i understood the concept in just 5 min which i was never able to learn in 4 + y

[@estebanruiz80]

This is an awesome explanation! I will have to watch it a few times to fully understand the concept, but thanks for making this as easy as it could be to understand. I am looking forward to showing these engineering videos to my now infant son in the future , to help explain how the these things work

[@paulvanlit]

Best explanation I have seen ever on this topic (and I have seen quite some similar ones) but this makes it crystal clear or should I say Silicon clear!

[@shanewarnes7339]

Always great video's, thank you

[@Dabz2084]

This was my actual question to my high school electronics teacher. He tried to explain it, but this explanation with graphics is top-notch. My teacher even gave us the exam with my question being the last with a 10-point bonus if answered correctly. I only got 3 points for my understanding.😁

[@InsaneFirebat]

Why is this the first I've heard of this conduction band? It helps a lot for explaining how the semiconductor works.

[@LinuxenCasa]

I saw the thumbnail and the number 4004 just came to my mind 🤣

[@iiSnely]

IN4007 in multisim lol

[@barnabywilde374]

i'm a child of the 1950s when you had to buy or borrow a book to explain this stuff. Screw THAT. These videos are priceless when they're done as well as this one! Good job, my friend.

[@electronic7979]

Excellent video

[@montech5647]

Do you have a video about Schottky diodes?

[@baruchisrael9715]

now add a fusion rod and variable frequency driven motor encased in demineralized water.

[@ommsterlitz1805]

Amazing video with great explications 👍👍

[@_vizec]

Very good presentation. I remember in high school chem we were going over the types of bonds and such and how some element combinations desire electrons when others want to get rid of them. I realized that (at the time I didn’t know it was called doping) you could arrange two types of combinations (P and N, though again didn’t know they were called that at the time) together such that current could only pass in one direction. I knew what a diode was and what it did at the time but I remember having that eureka moment in class as I realized how it worked atomically. Amazing visualization of it!

[@LAYATORS]

4:44 how does the diode itself act as insulator in that specific moment?

[@kenlogsdon7095]

It is also interesting to note that in the reverse bias mode, the size of the depletion region can be changed by varying the applied voltage. This results in what is known as a "varactor" or "varicap" which is basically a voltage controlled capacitor, useful in RF tuning and other applications.

[@mperlatti]

So electrons can act like 2 divers sharing one oxygen supply to continue to exist?

[@primus711]

Put enough voltage it will allow current

[@markbevan5771]

Nice could you explain what happens when a diode has shorted or when it is open ?

[@ScienceArtistYoda]

Very good explanation PN junction🙂🙂

[@dvnoytekvlog6634]

Thank you for sharing and knowledge Master 👍🙏..

[@iiSnely]

Simple and straight 👍🏻 I remember our doctor took 2 hours to explain this 🤦🏻

[@Loneman_OG]

💡WOW! Watching this episode was a lightbulb moment for me! I understand how and why the majority of basic electrical components work, but I could never fully get my head around the P & N stuff... until now. Thanks! 👍

[@darrelmartin8261]

Wait until you watch the mosfet video...crazy.

[@EngineeringMindset]

See my new MOSFET explained video here➡️: kzbin.info/www/bejne/d6i1e6awmsRso5Y

[@johnhagen31]

Excellent! Even I can understand this. The narrator engages the viewer with his simple approach and clear explanation, plus showing enthusiasm. A very good presentation - thank you!

[@Dinco422]

0:30 rarely they are insulated with rubber... they are insulated with PVC, silicone or fiberglass

[@dankelley9361]

Excellent review of diodes! How does a zener diode differ?

[@1bgrant]

A zener diode has a very sharp drop in its breakdown region compared to a regular diode. This is designed deliberately to be at a particular reverse biased voltage, called the zener voltage, say -12V. The diode can operate in the reverse bias at -12V for a variety of currents without being destroyed, but will maintain the -12V potential difference across it. If the reverse bias voltage is too high it will still breakdown and be destroyed. They are mainly used as shunt voltage regulators in power supplies. As a load increases current draw in an unregulated supply the voltage output from the supply will decrease (called regulation). The zener is placed in parallel with the load in reverse bias to fix the required voltage for the load as the current draw varies (this is the diode's operating range at the zener voltage). When the load is drawing less current, excess current is "shunnted" through the diode to ground. The characteristic of the forward bias are pretty much the same as a regular diode. A 0.6-0.7V potential difference to overcome the depletion region. I hope that explains it.

[@jayjjoel]

@@1bgrant awesome explanation

[@TriglycerideBeware]

Neat video. I'd like to hear more about why exactly the power source and its direction trigger bias and reverse bias. That's the part that didn't follow for me

[@Hubris73]

As I understand it: Because the N-type has a negative charge bias (extra electrons) its charge will be pulled toward the power source when the charge of the power source is positive (represented here by flipping the battery so the positive terminal is connected to the cathode). The same thing happens on the other side of the diode where the P-type (positive bias/fewer electrons) is connected to the negative terminal of the power source through the anode. This attraction to the outer edges of the diode prevents the Depletion Region from forming at the P/N junction and makes the flow of electrons (aka electrical current) impossible.

[@plinker439]

In real, + side of the battery has low potential compared to - side (more electrons here), so when you reverse the battery, + side will attract the free electron's of n-type material.

[@Sloposse]

I have no idea what you just said in the video but its fascinating and ive been an electronics buff for years

[@johnd5398]

Two oppositely-charged compounds inside the diode conduct electricity when it flows in one direction and act as an insulator when it flows in the other direction. It's not exact but it's enough to get the process started.

[@revolutionaryprepper4076]

This is exactly how a diode works. Ty for this explanation!

[@LeonardoStaAna-cf8ll]

Nice explanation. Thanks

[@vince6829]

Thank you for sharing your knowledge.

[@suvallezpl7284]

Why does diode burn, when you connect it as insulator but with too much volts?

[@johnd5398]

Any insulator will fail if the voltage is high enough.

[@suvallezpl7284]

@@johnd5398 yeah, I know but why is this happening if Electrons are separated?

[@nfsdisney]

Hello, can you make a video about wich conductor is better? Single wite vs multiwire conductor, and aluminium vs copper? Thx in advance

[@yonasmeseret3102]

What type of enginering does it consider

[@rebmcr]

When the diode acts as an insulator, and the boundary region expands, are the electrical properties of the anode & cathode different enough to detect elsewhere in the circuit (if we cared enough to make a specialised detector circuit)? Or is it simply indistinguishable from, for example, a disconnected PCB trace?

[@PelosiStockPortfolio]

Typical diodes in reverse bias should present a high resistance, like 10kOhm. The exact value depends on the doping and size of the diode. If you apply a large enough reverse bias voltage, the diode will start to conduct a reverse current due to electric field breakdown. Those are 2 characteristics that an appropriate detector could use to figure out if a diode is present in a circuit.

[@nicevideomancanada]

Nice explanation, I understood all the way through.

[@travellingselement7940]

My Brain Electrons Are Not Much Strong To Understand this Electrons....

[@ismailshafeeu4802]

This is the best explanation I have ever seen Now with confidence I can say that I have understood how diodes work and how it was constructed Thank you 👏👌

[@breadbutt]

this is great. simply explained but not dumbed down. thanks

[@SAJAN_ECE]

When Electrons migrate from N side to P region and Holes migrate from P side to N region, they recombine and Ions with Positive Charge and Negative charge will be present in the Depletion Region. The Electric field is caused by the Immobile Positive and Negative Ions. Needed some clarity in that portion.

[@josephinebennington7247]

NOW! I understand the HOLES, P type and N type doping that beat me in the book about the inventing of the transistor.

[@princequestly2218]

What a fantastic explanation. You definitely earned my sub. Good stuff.

[@jbn03canada]

How come I understand explanation , but when in a circuit, I get confused.

[@mibeutbig8909]

I thank Máster Wu for this video, THANK YOU

[@dennisduran8500]

Now I know why I got an " F " in electronics class in high school. I don't have the brains for it.

[@MrBat000]

so a diode allows current to pass through when activated Like a gate. so why wouldnt use a mosfat instead because a mosfat also allows current to go through when activated.

[@rogerhawkins6433]

I got all of that …… except the part after “As you may know ……”😂😂😂

[@DARTHDANSAN]

Thanks i actually learned something

[@larrygraham3377]

Love your videos ... They are fantastic !!! 😉😉😉

[@bosesebi6685]

0:50 Dude, that is way too similar to planetary systems to be coincidence.

[@andrewstripay5987]

am still always looking for the red subscribe button. i feel like a free electron seeing too much resistance

[@johanferozco]

Thank you so much for this great explanation. I got it at last.

[@ggesdsdsdsd]

This is also pretty much how a LED works also! Nice video

[@drakefallentine8351]

Probably bc it is a Light Emitting DIODE....

[@johnd5398]

@@drakefallentine8351 Sharp as a bowling ball, ain't he?

[@EngineeringMindset]

Seen the new LED explained video? so much detail covered! kzbin.info/www/bejne/hWmwY61ona6Vl8k

[@AnExPor]

They only work one way, or both, depending on what you actually wanted to do.

[@mperlatti]

Is it right to assume Electrons want to escape as a basic part of their existence?

[@johnbarron4843]

Amazing! Can you do one on the kj flip flop chip

[@cseonlineclassesmalayalam]

Super explanation about an invention that changed the world 👍👍

[@Jason_Canada]

Where were you in my trade school years ....well done

[@charlespierce3647]

Very well most of the time. Just don't let the smoke out.

[@shandusa]

That battery is really 1.5 V and not 0.5 V

[@slowneutron6163]

"Apply the diodes!"-ATHF

[@jozsiolah1435]

Some IC chargers, mostly phone, camera chargers have an inbuilt secret variometer. By adjusting voltage, you can decide, what to use it for, if the device is outdated or lost.

[@kit2691]

no clue why im here but this is pretty cool ngl

[@rusty911s2]

Amazing, thank you. Very nicely done. I knew what diodes did (roughly) but after that it was all new. Every day's a school day as they say.

[@jimnicosia5934]

It's not the free flow. Everything cost.

[@tsmeowth001]

In this context, free means freedom of movement. So a “free flow” means “to flow freely”, as in able to move without being blocked anymore. It is more like being free from restraints or shackles, not free as in payment or cost.

[@exibuchay1695]

Thank you for this. I understand a little bit more now. I'm one of those people who have a hard time wrapping their mind around something they can't see. I know I'm not alone. But I think I understand at least a little bit more after watching this video. Thanks again

[@thedanyesful]

How is the depletion region formed? Does it just form any time a P-doped silicon touches an N-doped silicon? Or does it have to be engineered during the doping process?

[@harunalrashidmdghalib996]

Depletion layer forms due to the accumulation of immobile negative and positive ions left behind when holes and electrons move across the junction to the other side and recombines with the opposite charges . Not due to the Accumulation of electrons and holes in that area.

[@johnd5398]

So you just came here to play youtube expert... if you already knew so much about it, then you're only here to make sure everyone else knows that you know so much about it. How pathetic.

[@Mordalo]

Excellent. Now we also know how transistors should work. So, question. How about a video on what causes the failure of either. (other than over voltage)

[@augustwest8559]

I understand how the diode works. What I don’t understand what compels the electron to keep it orbit.

[@EngineeringMindset]

I don't think anyone knows. But if they stop the universe will fall apart

[@JoeBob79569]

So, how was this discovered? Was it accidental, or did someone come up with the theory and then apply it intentionally?

[@itsimsonbgandibul6926]

Early, and already liked

[@jonreiser2206]

So, how do they work? What’s their function. I needed more.

[@EngineeringMindset]

Watch our diodes explained video

[@EpicPlayer954]

I easily learned something

[@davidriedel8245]

how do diodes work? just one way

[@BB-zi5wi]

So glad i subscribed to this epic channel! 🤘🏻

[@greggarner4477]

That is a great explanation!

[@jmannUSMC]

really great explanation! Also thanks for pointing out that us Americans pronounce Aluminium wrong 😂

[@shazam6274]

Americans pronounce it correctly as did the discoverer of the element. A prissy "Royal Society" changed it on a whim to Al you mi EE yum!

[@johnd5398]

Everyone assumes that the American version of every word is wrong. Well, this time it's not. The American pronunciation is the correct one. Sir Humphry Davy named the element alumium in 1808 and then changed it to aluminum in 1812 British editors changed it later. We say it the way its inventor wanted it.

[@discovery33977]

Yea, keep going sir, this is a amazing way for learning.

[@williamthatsmyname]

Consider me subbed

[@abdulsami4607]

Great explanation

[@outstandingshow]

Thanks Sir 🎓

[@Jothishayamantharaadawiya]

❤️❤️

[@andresitorocks5574]

yoo thats dope

[@brandonfarfan1978]

Nice.👍

[@pareshpaul001]

Ooh yeah

[@Loathed217]

Brilliant

[@barbarafogle3541]

The ether

[@andrewhoward7200]

That was terrific.

[@ja01975]

Excellent video!

[@Widderic]

Wut?

[@drock5404]

How are diodes applied?

[@pitchforkpeasant6219]

Alternators are one. Trains use them

[@SlyerFox666]

Is this like video trolling 🤔 I mean I can't keep up with the rate your putting them out now.

[@timberhoff]

Yeah.. it’s like he’s on doping just like p and n types. 💪💪

[@SlyerFox666]

@@timberhoff Hmm sounds a bit dopey to me to be honest lol