How a 555 Timer IC Works

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  • Опубликовано: 22 ноя 2024

Комментарии • 620

  • @HowToMechatronics
    @HowToMechatronics  3 года назад +26

    I hope you enjoyed this video and learned something new! If you'd like to support me making more content like this, please consider supporting me on Patreon: www.patreon.com/howtomechatronics

    • @Sombre____
      @Sombre____ 3 года назад

      You made the drawing yourself ? They seem really nice.

    • @bxeagle3932
      @bxeagle3932 2 года назад +1

      555 comments i dont want to ruin it

  • @tubegor
    @tubegor 3 года назад +111

    This year 555 Timer is celebrating its 50th birthday, my congratulations. Half a century in electronics is all eternity.
    Explaining how it works great done. 👍(ツ)❤️

  • @hoofheartedicemelted296
    @hoofheartedicemelted296 3 года назад +3

    I had to slow the playback to 0.75 and it gave me a greater amount of time to absorb this information. I'm a noob. But this stuff is fascinating, I can't think of any other word for it. Sir you are an excellent teacher. Thank you.

  • @Dakseru
    @Dakseru 6 лет назад +32

    This actually made me feel like I understand electronics and will allow me to understand what pins what and what the 555 does and how it does it for my A level studies, thanks a lot!

  • @insertusername5737
    @insertusername5737 4 месяца назад +2

    Finally someone explain that the capacitor is the key for changing the output state in the astable mode, other videos just throw formulas at your face and just skip the key of the thing with some "you just suppose to know that" vibes, what a shame.
    Appreciate it!

  • @new-knowledge8040
    @new-knowledge8040 4 года назад +3

    HOLY CRAP. The 555 timer is still around ! Amazing. I was using it about 44 years ago.

  • @kevinbyrne4538
    @kevinbyrne4538 6 лет назад +116

    Although I was already familiar with the 555 timer IC, I liked your presentation. Clear and concise.
    Also, congratulations on your English. I wish that I could speak a second language as well as you do.

    • @ShelliLoop
      @ShelliLoop 5 лет назад +2

      Kevin Byrne - congrats are - extremely - premature. Really, pal, why would you say this? He is very difficult to understand now and of you tell him he is “great” talking english, he might STOP trying to improve. In this way you actually HURT his progress.
      This guy has very good content and the right ideas about teaching, but still need to improve English
      A LOT.

    • @ravplayztabla7467
      @ravplayztabla7467 4 года назад +13

      @@ShelliLoop wow you're stupid af.

    • @SqualidsargeStudios
      @SqualidsargeStudios 4 года назад +1

      S H i agree, the English is shoddy and needs work.

    • @jovetj
      @jovetj 4 года назад +6

      I agree with Kevin. I already knew most of this, but it is an excellent video. The 555 timer is a "killer app" example of an integrated circuit. It's simple, elegant, and versatile!
      The criticisms of his English are unfounded. His English is very good. His accent is still very strong, but I had no trouble understanding him. Accents only go away with time and exposure to native speakers, which not everyone has access to.

    • @themightyimp08
      @themightyimp08 4 года назад +1

      @@jovetj yup, the 555 timer, along with a 566 chip, form the sound of the 2 flying saucers on Atari arcade Asteroids. It really is used in a ton of stuff.

  • @ra226gaming
    @ra226gaming Год назад +3

    Excellent explanation of the 555. I usually prefer still images/text over video, but in this case the video and the animations were fantastic and really make clear how the device works. Also loved seeing the block diagram of the actual schematic with the different parts highlighted.

  • @bahtiyar.bayram
    @bahtiyar.bayram 6 лет назад +302

    The best explanation of 555 timer...

    • @michgingras
      @michgingras 6 лет назад +10

      yea when you already know what he is talking about , then again you don't need much explanation don't you ?
      That guy is an idiot, he described the chip for 10 minutes without even saying what it is about and or what he is talking about.
      PURE RUBISH

    • @petedavis7970
      @petedavis7970 5 лет назад +5

      @@michgingras Where's your amazing content?

    • @johnnythi
      @johnnythi 5 лет назад +4

      @@michgingras something tells me you cut yourself.

    • @furrane
      @furrane 5 лет назад +6

      @@THE16THPHANTOM I didn't know how it works and now I do. You being slow to understand doesn't mean the guy did a bad video, it just means you're slow.

    • @THE16THPHANTOM
      @THE16THPHANTOM 5 лет назад

      @@furrane
      OK, boomer.

  • @knowall5792
    @knowall5792 6 лет назад

    Though, as a rookie, I didn't fully understand the video, I give the video a perfect 10. I have to come back to your site again and again, as my knowledge picks up. Subscribed already. Thanks.

  • @curiosity551
    @curiosity551 6 лет назад +35

    Graphics make it explain better. Thank you for such a useful video!

    • @Decco6306
      @Decco6306 5 лет назад +1

      verry much yess

    • @cryptocsguy9282
      @cryptocsguy9282 3 года назад

      @Rishikesh upload more electronics videos 📹👀

    • @curiosity551
      @curiosity551 3 года назад

      @@cryptocsguy9282 sure!

  • @maffysdad
    @maffysdad 6 лет назад +1

    That was one of the best 555 tutorials I've seen in ages, and the graphics both on the chip and at the right side made all the difference to helping understand it... Thank you so much!

  • @NicleT
    @NicleT 5 лет назад

    Best explanation on the 555 timer to date.
    Thank you so much. This channel is one of the Internet’s gem.

  • @taoufikkalfat7826
    @taoufikkalfat7826 2 года назад

    this is the best video in the world that i have seen explaining how the 555 works. thank you very much for this easy and very very clear explanation.

  • @NicStage
    @NicStage 5 лет назад +11

    This is the best description of a 555 timer I've found so far. I'm learning this stuff and your video was really helpful. Thanks!

  • @JohnLeePettimoreIII
    @JohnLeePettimoreIII 6 лет назад +5

    I've admired and used the 555 (556, and 558) for decades. Your video was very well made. Thank you.

  • @WhoWantsToKnow81
    @WhoWantsToKnow81 5 лет назад +13

    Absolutely beautiful explanation of a 555, the best I have seen so far. I'm very glad I came across your channel!
    I also made a flip-flop with NPN transistors in a NAND configuration, that was fun :)

  • @MaxImagination
    @MaxImagination 2 года назад

    Well-explained in a concise and understandable manner. Thanks to you I built a much clearer understanding of the 555 timer and how it works. Excited to make more NE555 projects without my usual hiccups in lack of knowledge. Cheers to you, man!

    • @tatvamkrishnam6691
      @tatvamkrishnam6691 2 года назад +1

      6:48 If anybody who reads this is curious how to derive that t=1.1*C*R result, its simple.
      capacitor
      --------| |--------
      | |
      | \
      | / resistor
      | \
      | /
      | |
      | __ Vcc __|
      constant Dc
      dq = i dt
      i = dq/dt
      Using Kirchoff's law,
      q/C + R i - Vcc = 0
      R (dq/dt) = (Vcc . C - q) /C
      dq/ (Vcc - q) = dt/ CR
      Apply integration on both sides with limits LHS.. from 0 to q, and RHS..from 0 to t.
      then you will get,
      - Ln ((Vcc .C - q) / Vcc .C) = t/CR
      From this we can easily get this result, i.e
      q= Vcc. C (1- e^(-t/CR))
      since q=CV,
      V = Vcc(1- e^(-t/CR))
      Now apply V= 2/3 Vcc in this formula,
      you will end up with t= ln(3). C. R
      [ln(3) = 1.0986 = 1.1(approx)]
      Happy learning!

  • @85ryankelly
    @85ryankelly 4 года назад

    The best explaination that I have seen. Read the book on the 555 timer and this just makes it all make sense now. Thank you.

  • @stephenwilliams5201
    @stephenwilliams5201 5 лет назад +9

    Every" band " needs a drummer. ( 555) And this is good way to" educate " folks tks for the Good show.

  • @HillCountryDemo
    @HillCountryDemo 4 года назад

    The best tutorial on the 555 timer on all of RUclips!

  • @prasad3071
    @prasad3071 Год назад +1

    I don't think there is a better explanation than this.Thank you very much for your effort.🤟

  • @akashrenigme5709
    @akashrenigme5709 Год назад

    Slow and a kid can understand with a explanation like this. For the channel creator : students shall appreciate if you could continue this

  • @yoramstein
    @yoramstein 4 года назад

    Great videos by Dejan Nedelkovski. Very proffesional. Clear English and every word to the point not too much bla bla like by others.

  • @cavanaughsgarage
    @cavanaughsgarage 5 лет назад

    this has to be the best explanation of 555 timer ever, the internet needs more vids like this. I need to find the DC motor control tutorial referenced towards the end of this video

  • @justincrissman8981
    @justincrissman8981 5 лет назад +3

    best 555 timer video i could find. subscribed

  • @agaxent6200
    @agaxent6200 Месяц назад

    nothing beats this Video to get me fast asleep, good for insomnia..

  • @rpsproject5349
    @rpsproject5349 6 лет назад +5

    That is the best explanation of the 555 that I have seen yet.

  • @Cassandra_Johnson
    @Cassandra_Johnson 6 лет назад

    Best 555 video I have seen here, bar none.

  • @orlandoarriaga7148
    @orlandoarriaga7148 6 лет назад

    Just made a 555 timer on a bread board and this video really helps me connect both ideas together and now I fully understand, awesome presentation (edit: by making it I meant making the inside of a 555 on a bread board)

    • @HowToMechatronics
      @HowToMechatronics  6 лет назад

      That's cool, I'm glad you found this video helpful! :)

  • @PatrickKrolickoff
    @PatrickKrolickoff 4 года назад

    Thank you for the best explanation of 555 timer working. Since I'm from Russia I understood you very well. Best regards, Mike

  • @claytonbenignus4688
    @claytonbenignus4688 5 лет назад +22

    I am going to review this video several times. I would also like to see him do the LM386 Chip.

  • @anjithajyothikumar7114
    @anjithajyothikumar7114 3 года назад

    Best content on 555 I've come across! Thanks a bunch!

  • @hitts8928
    @hitts8928 4 года назад

    it took ages for my professor to explain the NE555 while this guy explained it even clearer in just 10mins 😆😆

  • @migalito1955
    @migalito1955 5 лет назад

    Excellent explanation of 555 IC. Nothing was left out and the graphics were superb!

  • @theemanuel472
    @theemanuel472 3 года назад

    This is the best explanation about 555 timer ever, but I need one more thing, the demonstration for this two formulas (TH and TL). I need a video to understand how to get these two from capacitor charge and discharge equations.

  • @ddee2501
    @ddee2501 6 лет назад

    The best explanation of 555 timer i have seen yet....well done !

  • @shubham709
    @shubham709 4 года назад

    thank you for this video best explanation of the working of 555 I have seen till now

  • @AtomkeySinclair
    @AtomkeySinclair 6 лет назад

    I've used them for years and never really took a look that far into the internals. Nice work.

  • @nunomaster
    @nunomaster 5 лет назад

    This is without a doubt the best explanation i found of a 555 timer. Thanks!

  • @panchosmar
    @panchosmar 6 лет назад +1

    The best explanation about the 555 I have seen so far, and with the graphic animation that is simply wonderful, my sincere congratulations. Shared

  • @carlittle_
    @carlittle_ 4 года назад +1

    This is the best explanation ever.

  • @gezhagnteramedew5086
    @gezhagnteramedew5086 Год назад

    Their is no word other than PERFECT to this video

  • @calyodelphi124
    @calyodelphi124 6 лет назад +13

    I have to sya, this explanation of how the 555 timer works is beautifully done. It's simple and clearly illustrates what's happening internally. I definitely learned a lot more with this than I did in previous 555 timer videos by other EE youtubers.

  • @SobhitPanda
    @SobhitPanda 3 года назад

    You are actually Awesome! You are an inspiration to me. All the best and reach heights! Love from a lil Indian RUclipsr.

  • @MacNifty
    @MacNifty Месяц назад

    I remember learning all about the 555 in 9th grade and never forgetting about it.

  • @thecraftsman8083
    @thecraftsman8083 5 лет назад +2

    Most efficient tutorial of this topic!

  • @ccv3237
    @ccv3237 6 лет назад +1

    Congratulations my friend! This is the best IC555 explained video I have seen.
    Thank you very much for such a great detailed and well explained video.

  • @marcopilati7464
    @marcopilati7464 2 года назад

    best explanation ever seen. Great! Thank you!
    (really lovely, your Russian-American accent!)

  • @blogtodeath4736
    @blogtodeath4736 6 лет назад

    A very well made and easy to understand video, unlike most of the hobbyist garbage on RUclips!

  • @DINESHCO
    @DINESHCO 5 лет назад +1

    The best explanation how 555 works..well done and thanks

  • @cw4608
    @cw4608 4 года назад

    The explanation and graphics are excellent! Thank you for taking the time to create this tutorial on the 555

  • @marcturcotte3013
    @marcturcotte3013 6 лет назад +1

    Jackpot !!! This man knows how to communicate its knowledge.
    Those are the explanations I was looking for.

    • @HowToMechatronics
      @HowToMechatronics  6 лет назад

      Thanks!

    • @triodit
      @triodit 6 лет назад

      bullshit he told use how to make a switch that unbelievably fucking useless.

  • @NareshKumar-we6sc
    @NareshKumar-we6sc 2 года назад

    One chapter half syllabus was covered in just 10:43 minutes...take a bow👏🤝to your explaination..

  • @JohnnyJTav
    @JohnnyJTav 6 лет назад +20

    The Most versatile IC ever Devised...

  • @GamingFloppaYT
    @GamingFloppaYT 8 месяцев назад +27

    wait but its not walking

    • @deepaknanda1113
      @deepaknanda1113 5 месяцев назад +3

      Wait some more...it will😅

    • @topiuusi-seppa5277
      @topiuusi-seppa5277 5 месяцев назад +3

      I got that reference 😆👌

    • @wlyiu4057
      @wlyiu4057 Месяц назад +2

      You need to place it on a very, very long breadboard.

  • @stevenelmes8361
    @stevenelmes8361 4 года назад

    The best explanation i have found so far!

  • @mandarbamane4268
    @mandarbamane4268 10 месяцев назад

    This helped me on college presentation, thanks a lot!

  • @eanliyo973
    @eanliyo973 4 года назад

    Explanation is very much clear

  • @markfinn825
    @markfinn825 3 года назад

    You did good. I am beginning to understand the 555 IC. Some memorizing and I will probably understand it well enough to use it in adapting my very own relay logic calculator design to integrated circuits to a build project rather than only a drawing. Thus I will be one step closer to losing my lunatic reputation some of which was gained by boasting about my half baked IC projects of about 31 years ago at a local tavern.

  • @gembagemba7207
    @gembagemba7207 4 года назад +1

    You are the best brother 👍

  • @codym627
    @codym627 2 года назад

    Amazing video!!!!!!! This is a hard to explain topic but you did it so well!

    • @HowToMechatronics
      @HowToMechatronics  2 года назад +1

      Thanks, glad it was helpful!

    • @codym627
      @codym627 2 года назад

      I just discovered your channel and it is awesome! You are great at explaining stuff!

  • @ifmohammed6495
    @ifmohammed6495 5 лет назад

    You are the best. your explation is very simple and easy and it is very good

  • @ethansprojects7399
    @ethansprojects7399 11 месяцев назад

    You are a great teacher!

  • @adp9926
    @adp9926 6 лет назад

    What did I just watch? I have no idea at all what you were talking about but probably because I have no knowledge at all about this stuff... seems like you still did a good job at explaining according to the others

  • @AaronB99999
    @AaronB99999 4 года назад

    Wonderful explanation. I was able to replicate all three on a breadboard fairly easily. First time I was able to get a 555 to do anything.

  • @clex2349
    @clex2349 6 лет назад +4

    I needed this like a year ago, good job.

    • @BradCozine
      @BradCozine 6 лет назад

      Well, now that you've watched this, go watch Primer then get to "makin'"!

  • @slordmo2263
    @slordmo2263 5 лет назад +3

    Yes, a classic I.C. ..... it's interesting.... there are quite a few 'variations' of this chip now.... in all the logic types....TTL, CMOS....etc, and package types....even surface mount.... (and care must be taken, too) The input/output specs have changed quite alot too. One of the big selling points of this chip is that it is 'Modular'...meaning that each subsection could be used in 'different' ways.... (window comparator, SR Latch, Output Driver, Open Collector Driver, etc.) an engineer could use those blocks to get the 'function' he required... There was another IC from the 70s that was 'modular' oriented.... originally a linear power supply chip...the LM723... had an op-amp, error amplifier, voltage reference output, output driver, etc.... could be used in various ways... now most chips are either ASICs or pre-programmed microcontroller , they have their place...but the these old chips could be used, without having all the overhead of a micro.... just 1 man's opinion....

  • @liveen
    @liveen 3 года назад

    So many youtubers nowadays making videos on electronics in such a way that I assume it'll be for beginners, but I literally understand almost none of what's going on, despite not being completely beginner (i know how resistors, transistors, capacitors etc works and have built a couple tiny supersimple cirquits on a breadboard)

  • @joshpatterson2140
    @joshpatterson2140 6 лет назад

    This is the best electronics video I have ever seen. Man, I wish i could tip you!

  • @lyf7835
    @lyf7835 4 года назад

    Thank you for help me fully understand!!!Your explanation is very clear!

  • @professoreggplant9985
    @professoreggplant9985 5 лет назад

    Best explanation from a functional level. You should do one from the perspective of the component level now instead of the functional level. I can't find any that walk through the individual transistors, diodes and resistors that make up the circuitry.

  • @pauliukzz
    @pauliukzz 2 года назад

    Thank You for explanation, everything Perfect!

  • @larsholst7221
    @larsholst7221 6 лет назад +1

    Very good explanation. In detail and easy to understand.

  • @Carlusha919
    @Carlusha919 3 года назад

    Excellently explained!!! The best! Great dynamic diagrams too. Thank you much.

  • @Camper721
    @Camper721 4 года назад

    Great video. I remember this from school in the 90's.

  • @waqaswani2994
    @waqaswani2994 6 лет назад +4

    Beautiful explanation thank you very much

  • @spacial2
    @spacial2 6 лет назад

    This really is an excellent explanation.

  • @mattantonelli4273
    @mattantonelli4273 2 года назад

    An absolute genius

  • @Ther3IsN0Sp00n
    @Ther3IsN0Sp00n 3 года назад

    Wonderful video, I love the way you explain things and the animation really helps 👍

  • @TheVagueIdeas
    @TheVagueIdeas 4 года назад

    Your explanations are really top notch, thanks for making these videos!

  • @limefourwe4937
    @limefourwe4937 6 лет назад

    That's for the formulas. to time. great work.

  • @josedominguez2021
    @josedominguez2021 6 лет назад +2

    Ahora si entiendo como funciona el 555.
    Si sabes de flipflops.
    De comparadores.
    De resistores pull up y pull down.
    De buffers.
    De divisores de tension.
    De circuitos RC.
    De transistores NPN.
    Si sabes de lo anterior???
    Sabrás como funciona el 555.
    Thanks a lot for this super video.
    Desde guatemala saludos.
    See u at next vdo.!!!!

  • @harshachittu
    @harshachittu 5 лет назад +3

    Great explanation and presentation is beautiful....
    Thanks a lot....🙏

  • @benslimaneyoucef9422
    @benslimaneyoucef9422 2 года назад

    Absolutely beautiful work, thanks Sir for your effort

  • @thidassankaja8039
    @thidassankaja8039 6 лет назад +17

    Please do a video series on electronics basics.

  • @josedominguez2021
    @josedominguez2021 6 лет назад

    The BEST VDO ABOUT 555 INTEGRATED!!!!
    El mejor vdo sobre el 555 de toda la red!!!
    Quinientas Cincuenta y Cinco Gracias!!!

  • @mbaker335
    @mbaker335 6 лет назад

    Brilliant explanation. Very clear indeed.

  • @AyobeTech
    @AyobeTech 6 лет назад +5

    Thank you for this simple explanation

  • @MegaBakerdude
    @MegaBakerdude 5 лет назад +1

    Excellent explanation.

  • @newtron762
    @newtron762 5 лет назад +1

    i have already designed my own 555 timer IC using bjt transistors, i derived all the equations even the FM modulation equation.

  • @peterdenes6353
    @peterdenes6353 5 лет назад +2

    Wow..you make this sound super exciting, even though I hated this subject at my uni :D

  • @agstechnicalsupport
    @agstechnicalsupport 6 лет назад

    An excellent explanation of the 555 timer !

  • @BertGrink
    @BertGrink 6 лет назад +75

    I think the only other IC that can possibly rival the 555 as being the most sold is the 741 Op-Amp IC.

    • @marwansamy2
      @marwansamy2 6 лет назад +2

      That's true but 555 is the one being more sold than 741, but they are pretty close

    • @two_number_nines
      @two_number_nines 6 лет назад +3

      why lm741 tho? lm358 is much better-cheaper and contains 2 in a single package

    • @BertGrink
      @BertGrink 6 лет назад

      John Scarce I was not talking about quality, but merely about sales figures, where i think the 741 is by far the most sold opamp of all time.

    • @two_number_nines
      @two_number_nines 6 лет назад +3

      people are stupid and we have to spread the word about lm358 more then

    • @joewoodchuck3824
      @joewoodchuck3824 6 лет назад +2

      The 741 is as obsolete as an early dinosaur. Why people still design with them, why any sellers carry them, why magazine editors publish circuits using them, and why they're even still made is a complete mystery in a technical world moving forward and hopefully not moving backwards.

  • @ChupoCro
    @ChupoCro 6 лет назад

    Stvarno dobro objasnjeno! Explained really well!!

  • @Driftload
    @Driftload 6 лет назад +19

    Very well explained video, I am an electronics noob but I think I understand the modes to an adequate extent now.
    One thing though - it might be capacitor fundamentals but in *astable* mode how comes the input voltage (to the entire circuit) doesn't stop the capacitor from discharging?

    • @HowToMechatronics
      @HowToMechatronics  6 лет назад +4

      Thanks. The capacitor is discharging because in that case the discharging capacitor is active, meaning the the VCC is connected to Ground via the R1 resistor, or if there wasn't a capacitor the voltage at R2, C2 or the threshold and trigger pins would have been zero.However, the voltage is not zero because the capacitor was charged and now is discharging from those 2/3Vcc until 1/3VCC.

    • @manojkm9219
      @manojkm9219 5 лет назад

      Scott Anderson led complants

    • @RichardHowin
      @RichardHowin 5 лет назад +1

      Addition to How To Mechatronics, Current is easily flow to the discharge because there's no resistance (very minimal resistance) at the discharge transistor vs R2 that have some value of resistor. So VCC get attract to discharge transistor easily ._.v

    • @hengpong1561
      @hengpong1561 5 лет назад +1

      ល្អ

  • @sajjadkarami872
    @sajjadkarami872 3 месяца назад

    so simple, so nice. thanks

  • @pavanpratapsinghchauhan6804
    @pavanpratapsinghchauhan6804 4 года назад

    Beautiful explanation 😃😃

  • @gicagabi348
    @gicagabi348 4 года назад

    Very good explanation. Thank you.

  • @melchiortod29
    @melchiortod29 4 года назад +1

    Such a good explanation. Thank you!