How Optocouplers work - opto-isolator solid state relays phototransistor

Optocoupler. In this video we learn how optocouplers work and also look at some simple electron circuits you can make yourself to understand how an optocoupler, opto-isolator, phototransistor, photocoupler works. Photo transistor
Correction 13:21 Upper text "220Ω" resistor should say "22Ω" calculation in lower screen is correct
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Пікірлер: 457

  • @EngineeringMindset
    @EngineeringMindset3 жыл бұрын

    ⚠️ *This video took 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: kzread.info/dron/k0fGHsCEzGig-rSzkfCjMw.htmljoin Patreon: www.patreon.com/theengineeringmindset

  • @zapatazapata6414

    @zapatazapata6414

    3 жыл бұрын

    Paul gets coffee! Thank you!

  • @chadmoyer1453

    @chadmoyer1453

    2 жыл бұрын

    Hey, much appreciated. I say this because I do maintenance for XPO and Holland freight and we do knock out where we remove c channel from concrete and jackhammer concrete and repour and weld dock plate and bumpers. A lot of work but definitely appreciated by those forklift drivers n truckers to keep production going. Good job n forgive me for grammar.

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    @bautranxuan3609

    2 жыл бұрын

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  • @coolbreezeafrica6571
    @coolbreezeafrica65713 жыл бұрын

    Isn't this the best educative channel we have on KZread??..

  • @dwayne7356

    @dwayne7356

    3 жыл бұрын

    I have been retired for 3 years. I had to understand schematics and digital circuits as wells as pumps and motors for my job in power plant operations. I was not trained formally as an electrician. I knew what I didn't know but I could understand what I needed to know for personal and plant safety. However, I never understood enough that I could explain it or teach somebody else. I wish I was trained with these videos 30 years ago because they are so clear compared to drawing in a text books. May be then I could explained how things worked better because I knew things did work.

  • @coolbreezeafrica6571

    @coolbreezeafrica6571

    3 жыл бұрын

    @@dwayne7356 great to hear your part of the story,I wish you well.On my part,I am an HVAC technician,I came to realise there is no way you can troubleshoot air conditioner units without understanding basic electronics & circuitry,......I swear this channel has a way of making these things seem easier than they do on textbook

  • @EngineeringMindset

    @EngineeringMindset

    3 жыл бұрын

    Glad you think so

  • @thesmallestminorityisthein4045

    @thesmallestminorityisthein4045

    3 жыл бұрын

    Quite possibly.

  • @love7192

    @love7192

    3 жыл бұрын

    It definitely is the BEST EDUCATIVE channel here on youtube

  • @ArthurTugwell
    @ArthurTugwell3 жыл бұрын

    I’ve said this time and time again, this channel is the most well thought out and informative on this whole platform. Schools should be showing your videos to engineering students. Incredible guys, can’t praise you enough.

  • @EngineeringMindset

    @EngineeringMindset

    3 жыл бұрын

    Thank you, Don. Very kind

  • @anthonymercado3464
    @anthonymercado34642 жыл бұрын

    Listen my guy... I have looked far and wide.. just got started with Arduinos, esp8266, and raspberrypi.. I understand the mechanical side, the software side, but just couldn't find a well versed and exampled documentary on how circuitry works.. on how to calculate the resistance needed and everything all in one video... This is genuinely GOLD man. This makes sense. Thank you

  • @EngineeringMindset

    @EngineeringMindset

    Жыл бұрын

    See our new video on how to build mechanical versions of electronic circuits? Watch here: kzread.info/dash/bejne/jKpts5mimJeehcY.html

  • @roberthatcher2773
    @roberthatcher27733 жыл бұрын

    You break the components/circuits down so clearly with simple images it makes it much easier to follow than most of the other subject videos on KZread. Thanks!

  • @dax3m
    @dax3m2 жыл бұрын

    I can't tell you how grateful I am for making these videos; I have a hard time accepting "this does that" without an explanation of the underlying foundations of why it "does that". Your explanation down to physical properties of the material is precisely what makes me go "oh! that's why!" and what I've been looking for all this time I've been trying to learn electronics. Keep up the amazing work and thank you!

  • @GadgetEyeGuides
    @GadgetEyeGuides3 жыл бұрын

    This has got to be one of my most favorite educational channels. Absolutely top notch!

  • @pauljanssen5262
    @pauljanssen52623 жыл бұрын

    In the video starting at 13 min 30 sec, the second resistor in the drawing shows 220 ohms, but you meant this to be 22 ohms.

  • @EngineeringMindset

    @EngineeringMindset

    3 жыл бұрын

    Thanks it's noted in the video description

  • @EngineeringMindset

    @EngineeringMindset

    Жыл бұрын

    Check out NEW resistor video, everything covered! ➡️ kzread.info/dash/bejne/do2XrqiBl7mpnpM.html

  • @skhumbuzocele1330
    @skhumbuzocele13303 жыл бұрын

    You have taught me more in one Video that I have learned in my Electrical Engineering classes combined. Thank you.

  • @RicardoMartinez-gu5ys

    @RicardoMartinez-gu5ys

    2 жыл бұрын

    Me too

  • @s2003katalin
    @s2003katalin2 жыл бұрын

    Today I wanted to know how optocouplers worked. Don’t actually need to but it intrigued me. I can safely say THIS is the best video explaining it. Thank you for the calculation of resistor values as well as the real life examples of being able to add them up.

  • @EngineeringMindset

    @EngineeringMindset

    Жыл бұрын

    Check out NEW resistor video, everything covered! ➡️ kzread.info/dash/bejne/do2XrqiBl7mpnpM.html

  • @s2003katalin

    @s2003katalin

    Жыл бұрын

    @@EngineeringMindset Thank you! Really appreciate it.

  • @CoolDudeClem
    @CoolDudeClem3 жыл бұрын

    Wait what's this? A tech video with actual NARRATION and ILLUSTATIONS? Now THIS is how it SHOULD be done!

  • @RonJohn63

    @RonJohn63

    3 жыл бұрын

    The only thing (not!) missing is loud drama music overpowering is voice.

  • @raybin6873

    @raybin6873

    3 жыл бұрын

    Now if KZread only had spell check for the comments section Lol! 😄👍

  • @Valleedbrume
    @Valleedbrume3 жыл бұрын

    The Optocoupler was my favorite device for keeping low/high voltage apart.Use to use it to drive Triac’s with it for light shows.Great video

  • @MrThinhle
    @MrThinhle3 жыл бұрын

    You're the best teacher ever. I really appreciate what you did. Thank you !

  • @markjosephlobete2563
    @markjosephlobete25632 жыл бұрын

    This is by far the most educative approach regarding optocouplers! Thank you so much for Engineering Mindset

  • @Nancys_on_fire
    @Nancys_on_fire2 жыл бұрын

    I just found this channel and I don’t know how I ever lived my life without it. Thank you so much for providing such fantastic content!

  • @ynwa2402
    @ynwa24023 жыл бұрын

    I want to say keep the good work mate this channel deserve all the support 👌, I had recently a job switch to BMS and still find it quite hard to understand programs like Plain English(Continuum) or Function block(EBO,Vista) when doing troubleshooting, I appreciate if you could shed some light on this or somehow give an advice.Thanks again for all what you doing😊

  • @emilmathew3280
    @emilmathew32803 жыл бұрын

    Your way of presentation is super

  • @EngineeringMindset

    @EngineeringMindset

    3 жыл бұрын

    Thank you so much 🙂

  • @HairyTheCandyMan
    @HairyTheCandyMan2 жыл бұрын

    Dude. You literally have the most informative channel on electronics. This has helped me a TON.

  • @guywaynebert
    @guywaynebert3 жыл бұрын

    This is the best explanation of a optocoupler I have seen... Thanks!

  • @antonybaranowski9765
    @antonybaranowski97653 жыл бұрын

    Great movie! What a depth of delivery and at the same time how simple it is!

  • @elope024
    @elope0243 жыл бұрын

    Great video and awesome job on making the content understandable.

  • @EngineeringMindset

    @EngineeringMindset

    3 жыл бұрын

    Glad it was helpful!

  • @yaswanthamuluru6190
    @yaswanthamuluru61903 жыл бұрын

    Best way to explain electronics Glad I can trust youtube channel rather than my teachers .

  • @curtis133
    @curtis1333 жыл бұрын

    Very well explained clean and clear, I'd let my kids learn from this ( if I had kids) lol

  • @simonadeyi
    @simonadeyi2 жыл бұрын

    This is truly the best KZread channel for the engineering minds.

  • @JasonLeaman
    @JasonLeaman3 жыл бұрын

    Id have to say this channel has tons of good content, nice work !

  • @agstechnicalsupport
    @agstechnicalsupport Жыл бұрын

    I love this video. Very clear and instructive. Animations of current moving makes it easy to follow. Thank you for posting !

  • @printlife9016
    @printlife90163 жыл бұрын

    Great video! Very instructive, definitely 10 out of 10 !

  • @kevinbowker2385
    @kevinbowker23853 жыл бұрын

    I can't thumb this video up enough times! Wonderfully explained!

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    @Anna-tl8xh3 жыл бұрын

    First time I watched a clip from this channel I knew that I had to press subscribe

  • @akaWILDBILL82
    @akaWILDBILL823 жыл бұрын

    One of my favorite channels on KZread. Could you please do a video on compressed air drying techniques, in particular HEAT OF COMPRESSION DESICCANT DRYERS. I’ve worked in oil and gas, pulp and paper, and defense and have had these in every industry but only recently had problems with them. Thank you.

  • @paigelooney6117
    @paigelooney61172 жыл бұрын

    This is the best educational videos ive seen yet very easy to follow and very informative.

  • @AtAGlimpse_UB
    @AtAGlimpse_UB2 жыл бұрын

    I LOVE THIS TYPE OF CONTENT! Great work Paul! Can you make a video on other types of optocouplers? it would be helpful too..

  • @drlegendre
    @drlegendre2 жыл бұрын

    When discussing optocouplers, it's a good idea to mention Vactrols aka resistive optoisolators. They aren't ofren used these days in new designs, but in the past they were widely used in audio gear like guitar effects and analog synthesizers. Since these are both popular topics, DIYers are likely to encounter the Vactrol sooner or later.

  • @Mr2Xri
    @Mr2Xri3 жыл бұрын

    Your big talent I think is that you have a unique manner to make all the electronics to look like so simple!

  • @kevin00861
    @kevin008612 жыл бұрын

    Thanks a million times for your amazingly detailed and comprehensive video, it's highly appreciated

  • @LinhNguyen-dz2pq
    @LinhNguyen-dz2pq2 жыл бұрын

    There's a slight mistake at around 13:20 where you put 220 ohms instead of 22 ohms. Overall, I like your video a lot!

  • @civick2052287livecom

    @civick2052287livecom

    2 жыл бұрын

    I was like huh? 👍

  • @privacyvalued4134

    @privacyvalued4134

    Жыл бұрын

    The mistake must be intentional just to see if you are paying attention in this class. If you can instantly spot the mistake, then you are well on your way to becoming an electrical engineer!

  • @Drone360pilot
    @Drone360pilot10 ай бұрын

    This one so far most practical video on the channel 🎉 pls keep up this way! Thank you for creating useful content ‼️

  • @thetominator1931
    @thetominator19313 жыл бұрын

    Thought the title was "How octopuses work", which is why I clicked. Can't say I was disappointed.

  • @thesmallestminorityisthein4045

    @thesmallestminorityisthein4045

    3 жыл бұрын

    Came for the octopuses, stayed for the electronics.

  • @ManofCulture

    @ManofCulture

    3 жыл бұрын

    Octopuses for HH tier stuff

  • @hcoguitar
    @hcoguitar3 жыл бұрын

    Fantastic explanation and graphics. I always enjoy watching your videos!

  • @AMGTOM
    @AMGTOM3 жыл бұрын

    I am so happy I can show this video to my kids. Thanks again.

  • @muhammadbilal2000
    @muhammadbilal20003 жыл бұрын

    You are a blessing for students. Thank you so very much.

  • @vasudhaivakutumbakam706
    @vasudhaivakutumbakam7063 жыл бұрын

    Great job sir .. I really admire your effort to explain the things in such a simpler manner .....

  • @antonfernando8409
    @antonfernando84092 жыл бұрын

    As a comp sci person, always struggled with these switches, very basic theory as you explained.

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    @ksanoop71403 жыл бұрын

    Providing Complete knowledge about something is just great. You are the best. I don't get doubts while watching. Soo well explained. Thank you for your work. :)

  • @cristianvieira6396

    @cristianvieira6396

    3 жыл бұрын

  • @manhardanmahedu3765
    @manhardanmahedu37653 жыл бұрын

    Best chanel educating not only theory but practical too by visual animation. Fantastic explanation of circuit 👍👍👍

  • @josephantony5589
    @josephantony55892 жыл бұрын

    Very nice and easy to follow demo as far as the basic functioning. Thanks Sir so much.

  • @LovyDuga
    @LovyDuga3 жыл бұрын

    Educational videos .I shared with all my friends . Salute to your hardwork.

  • @HR41Plan
    @HR41Plan4 ай бұрын

    Vraiment super bien expliqué avec des exemples concrets et les formules mathématiques qui explique toutes

  • @fixnreview
    @fixnreview3 жыл бұрын

    Clearly understands ur explanation. Thank u sir!

  • @BAK87
    @BAK873 жыл бұрын

    Excellent as always! With this content you are simply forcing me to become at least a supporter. =P

  • @user-nz7ig2yb2k
    @user-nz7ig2yb2k3 жыл бұрын

    Here i am with my bachelor in Mechatronics having passed my electronics exam and getting a better explanation from this guy than from my professor

  • @tinytonymaloney7832

    @tinytonymaloney7832

    3 жыл бұрын

    Let's hope your Prof doesn't recognise you 😂😂😂

  • @Antebios
    @Antebios2 жыл бұрын

    It's 1am and I can't stop watching these videos. My mind in blown on how our world in built on what's basically Legos. I need to go to bed in order for work tomorrow!!!

  • @MichaelOfRohan
    @MichaelOfRohan2 жыл бұрын

    Fantastic electron demo. Doesnt get much easier than that, and its not easy at all

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    @WiPri03713 жыл бұрын

    This was actually better than I thought it was going to be.

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    @donbeckham3 жыл бұрын

    Amazing, as usual.

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    @lazarjolic54162 жыл бұрын

    A just can't fall asleep, if i dont watch one of this, it's just amazing...

  • @TheKatrinaYang
    @TheKatrinaYang3 жыл бұрын

    About 4:30 is where it starts to talk about the physics, good stuff!

  • @karabotjizake173
    @karabotjizake17310 ай бұрын

    Awesome video. You make it seem like a walk in the park. Should I have come across your content during my school days I was going to ACE most modules.

  • @raphaelvista
    @raphaelvista3 жыл бұрын

    Fantastic work ! Keep it up. 👏🏽👏🏽👏🏽👏🏽

  • @brahimabdelsadek9534
    @brahimabdelsadek95343 жыл бұрын

    Very interesting. Thanks for sharing and teaching us.cheers from Algeria.keep going please.

  • @andrea_dev
    @andrea_dev9 ай бұрын

    This is THE most interesting video i've found on this subject so far! Really well explained 😍 Thank you!

  • @EngineeringMindset

    @EngineeringMindset

    9 ай бұрын

    Glad it was helpful! Thank you

  • @ionutspam947
    @ionutspam9473 жыл бұрын

    Very easy to understand, the graphics are simple and to the point.

  • @ArjunaWeerasinghe
    @ArjunaWeerasinghe2 жыл бұрын

    Hi I appreciate your effort creating the video. I noticed around 1:44 that the load is connected to emitter. Usually the load is driven by the collector.

  • @petersage5157
    @petersage51573 жыл бұрын

    Nicely explained. Suggestion for BOM consolidation: 390 ohms would do just fine for every resistor in the demonstration circuits. No need to stack multiple resistors of various values in series for something as simple as an optocoupler, whether it's an integrated package or a homemade Vactrol.

  • @EngineeringMindset

    @EngineeringMindset

    Жыл бұрын

    Check out NEW resistor video, everything covered! ➡️ kzread.info/dash/bejne/do2XrqiBl7mpnpM.html

  • @djisydneyaustralia
    @djisydneyaustralia Жыл бұрын

    Very good presentation, easy to understand for people that are just learning

  • @claudioosorio4847
    @claudioosorio48473 жыл бұрын

    At the beginning, around 1min, the PC817 is showed with the pins 3 and 4 in inverted position. It would be ok in schematic presentation.

  • @dedimardianto4983
    @dedimardianto49833 жыл бұрын

    Simply demonstrated optocoupler circuit,thank 's for you sharing and added knowledge,,sincerealy your's

  • @physicallyrandom5635
    @physicallyrandom56353 жыл бұрын

    Thank you sir for the info about optocouplers🙏🏻👍

  • @otpop.1288
    @otpop.1288 Жыл бұрын

    This channel have everything about circuit 😂😂im so glad found it as before start my first year in university as electronic engineer student

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    @user-ub7jx1xh9n Жыл бұрын

    عرض ممتاز وسهل ومبسط نشكر القائمين على البرنامج. ونتمنى ترجمة المقاطع إلى اللغة العربية.

  • @chadmoyer1453
    @chadmoyer14532 жыл бұрын

    Wish I could join but can't afford right now but I'll tell you what this video is ridiculously awesome. I don't have much knowledge in this area but I do electrical and am easily intrigued by how things work. This is the way God has made me and it's exciting to be moved by science.

  • @BuildswithBrian
    @BuildswithBrian Жыл бұрын

    I have learned som much from this channel, thank you thank you

  • @dwjw1
    @dwjw1 Жыл бұрын

    Very complete and concise presentation. I noticed one thing about PC817 though that surprised me. You show the pins 1, pin 2 on one side and pin 3, pin 4 on the other. According to the Sharp datasheet, pin 3 should be pin 4 and pin 4 should be pin 3. That is, the pins are numbered down one side and up the opposite side, not both sides from top down. Not sure that will cause anyone too much heart burn, but ...

  • @RonJohn63
    @RonJohn633 жыл бұрын

    Clever use of the photoelectric effect.

  • @robertv1273
    @robertv12733 жыл бұрын

    Fantastic explanation thanks a million.

  • @sk8t3rcz
    @sk8t3rcz Жыл бұрын

    Beautiful world of electronics, physics laws and maths. Thank you for very informative video

  • @brandonfarfan1978
    @brandonfarfan1978 Жыл бұрын

    This is really interesting. Thanks for explaining this stuff to us viewers.👍

  • @iforce2d
    @iforce2d Жыл бұрын

    wow, this is some quality video creation

  • @thehighriseconstructionob9679
    @thehighriseconstructionob96793 жыл бұрын

    You are so gunious some staff 1st time I understand because of your so gunious exponation you are truly angel thank you sir. 🙏😀.

  • @keitho77
    @keitho77 Жыл бұрын

    Another excellent video with great explanation. Thank you.

  • @thehighriseconstructionob9679
    @thehighriseconstructionob96793 жыл бұрын

    Oh my Gosh you are gunious 1st time I understand because of your gunious presentation thank you so much sir. I listened other video again & again but I didn't understand . but I understand your presentation so far thank you so much may God bless you sir you are gunious.

  • @mr.fixcamer
    @mr.fixcamer3 жыл бұрын

    My First time on this channel. Fallen in love with it

  • @angundrugilbert8469
    @angundrugilbert84693 жыл бұрын

    Great illustrations.

  • @techview6933
    @techview69333 жыл бұрын

    Great Explanation!!!

  • @williamporter3806
    @williamporter38063 жыл бұрын

    I worked in a nuke plant for a while. We were not allowed to take flash pictures behind the control panels (to verify wiring prints) because the flash could (and did, apparently) trip some opto-isolated components!

  • @ericscaillet2232

    @ericscaillet2232

    2 жыл бұрын

    Oops...😉

  • @byronwatkins2565
    @byronwatkins25652 жыл бұрын

    You can also use them to isolate analog signals from their sources. Generally, negative feedback is needed to keep the bias at the optimum level and the gain predictable.

  • @worldsbeauty472
    @worldsbeauty4722 жыл бұрын

    It's so satisfying watching the video. 😍

  • @GeoffreyCudjoeAgbemenya-ts6iq
    @GeoffreyCudjoeAgbemenya-ts6iq6 ай бұрын

    This is an enlightening and very educative video. I would like watch more of this. But i have a question for you for this particular video and this is: why haven't you added the current rating on the diode in the calculation?

  • @user-tj8yb6cz6c
    @user-tj8yb6cz6c3 жыл бұрын

    Love your videos and your videos are the BEST

  • @nikolaradosavljevic3004
    @nikolaradosavljevic30042 жыл бұрын

    I've learned more watching the first half of this video than I'm comfortable to admit.

  • @onecircuit-as
    @onecircuit-as3 жыл бұрын

    Exceeded video. Thank you. 👍

  • @Readbooks6800
    @Readbooks68003 жыл бұрын

    Sir can you make a video on Integrated circuit(ICs)?.sir I love the way you explain every single concept. Sir thank you from India😊👍🏻.

  • @EngineeringMindset

    @EngineeringMindset

    2 жыл бұрын

    Thank you, do you know we also have a Hindi channel? kzread.info/dron/g4k338hz9U8jnD5SXPO5jQ.html

  • @wolfeatsheep163
    @wolfeatsheep1632 жыл бұрын

    Awesome vid for us beginners maybe flash us some schematic electrical diagrams because if were learning this we'll need to understand that pretty much simultaneously... thanks

  • @jamescanuto9483
    @jamescanuto94833 жыл бұрын

    Amazing well appreciated master

  • @vsdvn
    @vsdvn2 жыл бұрын

    Thank you for explain with the animated circuit. 👍👍🌹🌹🌹🌹💝

  • @blueenduro5060
    @blueenduro50602 жыл бұрын

    Great video mate just subscribed thank you.

  • @1chamoy20006
    @1chamoy200062 жыл бұрын

    I love the explanations on everything

  • @sampathkumar-nl9nx
    @sampathkumar-nl9nx3 жыл бұрын

    Hi brother super your all the explanation you said was very clear Thank you brother👍👍👍🙏🙏🙏

  • @friedmule5403
    @friedmule54033 жыл бұрын

    Simply great teaching, thanks for sharing your knowledge!! May I please ask you about a "conclusion" I have arrived to, via your videos? In your video about BJT does it look like you can adjust the "door" how much it is open, by adjusting the current, or in a way make it act as a resistor. And in this video do you show that one side is an LED and the other side a light-activated BJT. My question is since a LDR is very unliniar if it's possible to use the BJT optocoupler as a variable resistor?

  • @EngineeringMindset

    @EngineeringMindset

    Жыл бұрын

    Check out NEW resistor video, everything covered! ➡️ kzread.info/dash/bejne/do2XrqiBl7mpnpM.html

  • @antoniobeatriz6634
    @antoniobeatriz66342 жыл бұрын

    Very nice explanation. It's like in a classroom.

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