What Is a Diode?

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  • čas přidán 19. 05. 2018
  • This electronics video tutorial provides a basic introduction into diodes. It explains how a diode works and how to perform calculations when it's in series with a resistor.
    What Is a Diode? • What Is a Diode?
    How To Solve Diode Circuit Problems:
    • How To Solve Diode Cir...
    Diode Logic Gates - OR, NOR, AND, & NAND:
    • Diode Logic Gates - OR...
    Clipper Circuits:
    • Clipper Circuits
    Clamper Circuits:
    • Clamper Circuits
    Half-Wave Rectifiers:
    • Half Wave Rectifiers
    __________________________________
    Full-Wave Rectifiers:
    • Full Wave Rectifiers
    Full-Wave Bridge Rectifiers:
    • Full Wave Bridge Recti...
    220V AC to 12V DC Converter:
    • 220V AC to 12V DC Conv...
    Capacitor Voltage Booster Circuit:
    • Capacitor Voltage Boos...
    Half Wave Voltage Doubler Circuit:
    • Voltage Multipliers - ...
    Full Wave Voltage Doubler Circuit:
    • Full Wave Voltage Doub...
    __________________________________
    Voltage Multiplier Circuit:
    • Voltage Multiplier Cir...
    Light Emitting Diodes:
    • LEDs - Light Emitting ...
    Power Dissipation In LEDs & Diodes:
    • Power Dissipation In R...
    Final Exams and Video Playlists:
    www.video-tutor.net/
    Full-Length Videos and Worksheets:
    / collections
    ___________________________________
    1N4007 Diodes:
    amzn.to/3eiepEW
    Disclaimer: Some of the links associated with this video may generate affiliate commissions on my behalf. As an amazon associate, I earn from qualifying purchases that you may make through such affiliate links.

Komentáře • 195

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  Před 5 měsíci +7

    Final Exams and Video Playlists: www.video-tutor.net/

  • @AL-wc8oy
    @AL-wc8oy Před 2 lety +290

    Bro little you know you are raising kids because of your passion in teaching. I started watching you since highschool learning algebra, now I'm college studying computer engineering. You've taught me calculus, circuits, physics etc. I've learned so much from you, thankyou.

  • @kozimambo6542
    @kozimambo6542 Před 4 lety +352

    i really dont understand how you can be so good in every subject, i mean this is too much yet you can still explain so well

    • @alexshazam5482
      @alexshazam5482 Před 3 lety +35

      Well maybe its obvious that...
      ...He is a teacher

    • @furkanabdussamad2270
      @furkanabdussamad2270 Před 3 lety +3

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    • @azyle2104
      @azyle2104 Před 3 lety +37

      @@alexshazam5482 he's basically saying that this dude teaches a wide variety of things , which is very true. Look at the average youtube teacher and make a comparison

    • @moments_with_IH
      @moments_with_IH Před 2 lety +7

      @@azyle2104 I mean, bear in mind he has over 4 MIL subscribers on CZcams; that's because he teaches variety and in good ways. Guess He's just build diff lol

    • @azyle2104
      @azyle2104 Před 2 lety +2

      @@moments_with_IH agreed

  • @awinimaxwell2269
    @awinimaxwell2269 Před 10 měsíci +27

    You always make me feel like the things we learn are not difficult just that those who are teaching us are not passionate. Thank you very much.

  • @zEre326
    @zEre326 Před 3 lety +45

    My lecture was 2 hours and a half, and you explained this in 12 minutes, wow!

  • @eggxecution
    @eggxecution Před 3 lety +266

    bet one day you'll get interviewed by TEDx wanna see face reveal lol, keep it up I'm almost reaching 3rd year ECE btw

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    @katiebell1138 Před 4 lety +46

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    • @azyle2104
      @azyle2104 Před 3 lety +2

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    • @helan311
      @helan311 Před 2 lety

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    • @nothinginteresting1662
      @nothinginteresting1662 Před rokem

      Started with physics, then got interested in math and CS, biophysics, and now got interested in chemistry after realizing ic fabrication is chemistry

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    @jeshnu5922 Před rokem +6

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    notice this is guy never said to like share or subscribe hats off dude

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    I’ve recommended you to all my colleagues. Keep up the good work.

  • @vr6isfaster
    @vr6isfaster Před 2 lety +6

    Thank you so much for immediately differentiating conventional current vs actual electron flow in your demonstration. The difference here has confused me when reading schematics ever since I was a young student-age child.

  • @TiberiusStorm
    @TiberiusStorm Před 6 lety +23

    I could've used this video about 2 months ago for my electronics test!

  • @JonAhlquist
    @JonAhlquist Před rokem +13

    I remember which end is the anode because the arrowhead in the symbol for a diode looks like an "A" (for Anode) on its side. It points in the direction of "conventional" positive-to-negative (P-to-N) current flow, which reminds me that the anode has P-type semiconductor, and the cathode has N-type semiconductor. The vertical line for the cathode represents a wall that blocks "conventional" current from going from cathode to anode. That "wall" is represented by a ring marked around the cathode end of a "physical" diode.

  • @batgirl4930
    @batgirl4930 Před 5 lety +8

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    @mihaidev1078 Před 3 lety +5

    You dear sir, are a life saver!!

  • @isabelgarcia891
    @isabelgarcia891 Před 3 lety +5

    You are a great teacher thank you!

  • @devanshusahu1705
    @devanshusahu1705 Před rokem +2

    damn .. that video was so crisp, clear and perfect.. learnt the concept i was struggling for so much time!!

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    @crystalcoke9770 Před 2 lety +3

    Without you I do not know where I would be tbh you're the best

  • @jasonboche
    @jasonboche Před 2 lety

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  • @Mylovelycatworld
    @Mylovelycatworld Před rokem

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    @arjunajayanath7021 Před 3 lety +1

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    @sayahmahfoudabdelali4709 Před 3 lety +5

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    @phillipphiri5162 Před 4 lety +4

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  • @utkf16
    @utkf16 Před 3 lety +1

    Learning has taken place, thank you

  • @levernis5753
    @levernis5753 Před 4 měsíci

    You are really the GOAT at teaching. Ty for this video.

  • @done2913
    @done2913 Před 2 lety

    thank you so much your explanation is great

  • @Grey_Lexus
    @Grey_Lexus Před 2 lety +1

    such an amazing video I think it would help with Namdars exam hapening tmrw

  • @noizymook6601
    @noizymook6601 Před 2 lety +1

    Love your work

  • @successthruknowledge
    @successthruknowledge Před 2 měsíci

    Another great lecture about diodes. I like the examples at the end. My only wish is that he elaborate on what it means to be a n-type or p-type in physical terms.

  • @ElectricalSolution
    @ElectricalSolution Před rokem

    Thanks to you.
    Today i have clear conceft about diode.

  • @Bianchi77
    @Bianchi77 Před 8 měsíci

    Cool video, thanks for sharing with us, well done :)

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      @SL33py45H Před 2 lety

      How do you know ?

    • @eggxecution
      @eggxecution Před 9 měsíci

      @@SL33py45H been a subscriber ever since he has around 500k subs

  • @kazimamine
    @kazimamine Před 2 lety +1

    useful and simple

  • @karimdjotni6108
    @karimdjotni6108 Před 3 lety

    Thanks for this video

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    @erfanmoghadasi2266 Před 2 lety

    You are the best man ❤️

  • @moinali8391
    @moinali8391 Před 7 měsíci +10

    legends are watching at Exam day🤣😅

  • @AwuraamaDadson
    @AwuraamaDadson Před 3 lety

    Thank you once again ❤️

  • @Speed001
    @Speed001 Před 2 lety

    Thank you once again, I was having a bit of trouble and there was nothing for me to check step by step.

  • @ionationat3570
    @ionationat3570 Před 3 lety

    Best tutorial.

  • @kingrenny
    @kingrenny Před 3 lety +1

    Awesome! I got it!

  • @hasanrants
    @hasanrants Před 5 měsíci

    tomorrow is my applied physics exam, thanks alot man! you really made diodes easy to me.

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    @josephmacdonald17 Před 2 lety +1

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    @maroikechukwu1320 Před rokem +1

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    @malaikasaboori3920 Před 3 lety +1

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    @noneofyourbuisness6969 Před 3 lety +3

    What a soothing voice. .....😃😃😃

  • @prajwalmoras5302
    @prajwalmoras5302 Před 7 měsíci

    World class teaching as always

  • @hassatoujallow2285
    @hassatoujallow2285 Před 3 lety

    Thanks for the video.
    Can you please make a video on transfer function of electrical circuit

  • @user-cq7ec7zf3g
    @user-cq7ec7zf3g Před rokem

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    @nickybutch3 Před 4 lety

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    @fwooperfar Před 2 lety

    Thank you!

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    @ferjoyjamili1541 Před 3 lety

    Thank you.❤

  • @user-zx4ye7ro4t
    @user-zx4ye7ro4t Před 2 lety

    a life saver!

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    @marwasolh9449 Před rokem

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  • @user-db4pq4yb7z
    @user-db4pq4yb7z Před 5 lety

    Helpful

  • @stphnhrst
    @stphnhrst Před rokem +1

    I've been enjoying your videos. They are extremely helpful as I learn about the terminology in my electrical/instrumentation textbooks. Could you recommend a particular order of viewing your videos to build the basic foundation to understanding these theories better? Thanks

    • @JonAhlquist
      @JonAhlquist Před rokem +3

      Researchers who study the psychology of learning have found that the order in which you learn something is not important. That is good because we rarely have the time or opportunity to start something "from the beginning," which is different for different people because of their different backgrounds. It is fine to "fill in" your understanding as needed. I can't say much more because CZcams does not allow posts that provide or even suggest links elsewhere.

    • @stphnhrst
      @stphnhrst Před rokem

      @@JonAhlquist thx 🙏

  • @tariqmath1845
    @tariqmath1845 Před rokem

    Thanks

  • @shivnarayantiwari2418
    @shivnarayantiwari2418 Před 6 lety +1

    Tysm .. sir

  • @fifaclips2282
    @fifaclips2282 Před rokem

    thanku so muchhhhhh

  • @ponchobonjo2008
    @ponchobonjo2008 Před 4 lety +2

    BEAUTIFUL VIDEO! CONGRATS! I have a question for you, What is the eBOARD tool you are using? I will appreciate a lot! your feedback thanks

    • @jimhalpert9803
      @jimhalpert9803 Před 3 lety

      He has some video on the eboard. Just look for it on CZcams or something

  • @user-go3vg4zt6i
    @user-go3vg4zt6i Před 4 měsíci

    Thanks a lot sir

  • @victorianogubatan569
    @victorianogubatan569 Před 2 lety

    Hi. I'm new to this zener diode voltage regulation. Do you have a video where your output is charging a battery, with internal resistance. I want to know how much ohm resistor is required with input voltage of , say 16vdc and regulated output of 14vdc. Thanks.

  • @phillipphiri5162
    @phillipphiri5162 Před 4 lety

    Please do explain on transistors also.
    Am having problems...please

  • @parkmejihyo3770
    @parkmejihyo3770 Před měsícem

    Sir you tought me more in 12 min than my professor did in the entire college semester

  • @frankcastle4814
    @frankcastle4814 Před 5 lety +8

    Make more Electronics -related Videos

  • @najwaaboudaye5352
    @najwaaboudaye5352 Před 6 měsíci

    Thanks!

  • @user-cq7vg7wv5u
    @user-cq7vg7wv5u Před 3 měsíci

    Does diode block the flow of electrons as it does to current in flowing in one direction, since electrons flow in opposition with current. I.e diode allow current flow in one direction, block it in opposite direction, while electrons flow in opposite direction, will the electron b blocked hence it's flowing in the direction diode is blocking. Reply pls.

  • @antcity4754
    @antcity4754 Před rokem

    Tq😊

  • @rickmarquis1646
    @rickmarquis1646 Před 3 lety

    In my solar panel my schoty diodes are with the negative terminal of the diode toward the positive, but in your circuit are the opposite, i can't guess why, i will study this tonight?

  • @evwerenisaacoghenenyerhovw232

    Sir please I need video on 3 phase and Delta calculation sir.... Calculation involving load current, phase current, KVA, kw etc

  • @rickmarquis1646
    @rickmarquis1646 Před 3 lety

    Now i got they are reverse biased to impede current through poitive and negative and let i flows to the cables.

  • @ahmedsalam9028
    @ahmedsalam9028 Před 3 lety +2

    You are damn amazing 💙🖤

  • @grenouillesscent
    @grenouillesscent Před rokem

    I dont unerstand why the naming is different compared to a battery. I thought the anode of a battery was the negatively charged terminal that has excess electrons, so why would the anode of a diode be the electron deficient part that contains holes, its just confusing. I was just reading somehting and had a thought: Is the anode of a battery actually initially positively charged, becoming negatively charged only when the chemical reaction happens within the battery and the resulting free electrons are attracted towards it?

  • @ioannaathineos5269
    @ioannaathineos5269 Před 2 měsíci +1

    i want to marry this guy ...he is literally the solution to all my problems!

  • @duncanlegend5982
    @duncanlegend5982 Před 5 lety +20

    Electrons flow from negative to positive?

    • @farjanasharminswarna2450
      @farjanasharminswarna2450 Před 4 lety +31

      Yes. Electrons flow from negatively charged area to positively charged area. Therefore, current which is a flow of electron vacancy or hole, flows from positive to negative. If you add a battery to a circuit then current will flow from the positive terminal of the battery towards the negative terminal of the battery through all the other elements in the circuit.
      To ease the confusion, think of heat flow according to thermodynamics. Heat flows from high temperature area to low temperature area. Also if you think of water, it flows towards the area where water is less or the pressure is less.
      Just like that everything in nature flows from it's majority towards it's minority.
      In a negatively charged area, electrons are higher in number. So electron flows from negative to positive.
      Current flows in the opposite direction of electron flow. So, current flows from positive to negative.

    • @diogenesthecynic1334
      @diogenesthecynic1334 Před 4 lety +2

      @@farjanasharminswarna2450 Thank you so much

    • @farjanasharminswarna2450
      @farjanasharminswarna2450 Před 4 lety +1

      Welcome. Happy to help. :)

    • @mrbushpilot
      @mrbushpilot Před 3 lety

      @@farjanasharminswarna2450 but current IS electron flow isn’t it? I’ve seen it explained that way in several videos

    • @smarkbustersstink3471
      @smarkbustersstink3471 Před rokem

      @@mrbushpilot current is electron flow, but it flows in direction opposite to electrons just like positive charges.
      Negative charges flow from negative to positive(lower potential to higher) and positive charges flow vice versa.

  • @samkunam8014
    @samkunam8014 Před rokem

    Super

  • @mangosushii_.
    @mangosushii_. Před rokem

    Hi. I have a doubt on a dicode question to ask Are you able to help

  • @blackstarttv
    @blackstarttv Před rokem

    In 11:44, isn't that the diode is OFF because the forward voltage applied across its terminals does not exceed the diode's forward voltage threshold, which is according to the video is 0.7 volts? Please advise.

    • @markermino8292
      @markermino8292 Před rokem

      It is on because the source voltage is in negative value, flowing through the cathode (negative terminal) side of the diode. If the negative voltage source is flowing through the anode (positive terminal) then the current wont flow.

  • @SSS20025
    @SSS20025 Před 3 lety +1

    6:41 what about the resistance offered by cell?

  • @chriswilliams210
    @chriswilliams210 Před 4 lety

    Conventional Current Flows from the Cathode to the Anode against the Arrow.

  • @fawaz3448
    @fawaz3448 Před 4 měsíci

    THE GOATTTT

  • @brianskellenger9344
    @brianskellenger9344 Před měsícem

    🎯 ty

  • @sridharchitta7321
    @sridharchitta7321 Před 2 lety

    Electrostatics and circuits belong to one science not two. For a unified approach to learning Current and the process of conduction watch these two videos i. czcams.com/video/REsWdd76qxc/video.html and
    ii. czcams.com/video/8BQM_xw2Rfo/video.html
    Also, in the textbooks referred in the last frame of video i you will find descriptions of the operation of resistors, capacitors and inductors using this approach which makes it easier to understand.
    There are also chapters in the textbook references which explain the operation of diodes and transistors using the unified approach.

  • @ounie6230
    @ounie6230 Před 2 lety

    Is it optional that a diode would be on if the voltage flowing across the diode is exactly 0.7?
    What would happen if the voltage is less or more than 0.7?

    • @muhiddenmisbak1013
      @muhiddenmisbak1013 Před rokem

      If the voltage supplied across the diode is less than the diode voltage, then the diode won't "Turn On". Otherwise, the the voltage supplied across the diode exceeds the diode voltage, then the diode will "Turn On".

  • @Thewowhahahawow
    @Thewowhahahawow Před 3 lety +2

    Pre-req:
    PN Junction Video from him: czcams.com/video/ethnHSgVbHs/video.html
    CZcams search didn't rank it well so took me a while to come across it but it saved my life lol

  • @abelmedina7879
    @abelmedina7879 Před 2 lety

    So how would we use the diode?

  • @nachomoraga535
    @nachomoraga535 Před 4 lety +1

    so in reality if the real flow of electrons is from -ve to +ve then the diode conducts oposit to what it has been said.

  • @alexandreptito8485
    @alexandreptito8485 Před 10 měsíci

    i have a question. i ordered diodes to fix something and i recieved something that looks like an old camera film. is that normal?

  • @sergioandresbenitezhernand2542

    but why is the current flowing from positive to negative in the example?

  • @danielmatter2958
    @danielmatter2958 Před 4 lety +1

    Probably a dumb question but in the 3rd example of 0V (low) going to -7(high) the diode would have a voltage drop of 0.7 volts but you have 0V passing the diode so even if the circuit is on, no current would flow because you don't have the voltage strength to pass the diode. Can someone explain what I'm clearly missing? I'm probably just dumb. lol

    • @ahmedbelal7370
      @ahmedbelal7370 Před 4 lety +5

      The 0V in the 3rd example is the high potential and the -7V is the low potential, so the potential difference is 0-(-7) = 7V which is more than the voltage drop in the diode (0.7V), so current will flow in the direction shown in the video.

    • @danielmatter2958
      @danielmatter2958 Před 4 lety +1

      @@ahmedbelal7370 that makes sense thanks !

  • @Investingure
    @Investingure Před 2 lety

    i love you

  • @tejasagarwal1383
    @tejasagarwal1383 Před 16 dny

    Just wanted to know, the power of a current is (currents)²voltage right? But he wrote p= vi

    • @TheOriginalDeaf
      @TheOriginalDeaf Před 11 dny

      No, I will write the true formulas here:
      P= V * I
      P = V²/R
      P = I² * R
      P: power - I: current - V: voltage - R: resistance

  • @sarmasadyatmikam6438
    @sarmasadyatmikam6438 Před rokem

    Is it your own theary.

  • @luisbodart4140
    @luisbodart4140 Před 3 lety

    Omg I love u

  • @Talkingtoyself
    @Talkingtoyself Před 4 lety +10

    More MORE knowledge *maniacal laugh*

  • @z300b
    @z300b Před rokem

    Why the current unit in mA?