How a Transistor Works EASY! - Electronics Basics 22 (Updated)

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  • Опубликовано: 17 сен 2016
  • Let's take a look at the basics of transistors! Try the circuit!: goo.gl/Fa8FYL
    If you would like to support me to keep Simply Electronics going, you can become a Patron at / simplyelectronics
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Комментарии • 363

  • @firstofficerswaney1835
    @firstofficerswaney1835 4 года назад +144

    Something good to remember 0.7 v is the minimum voltage required to turn on a transistor

    • @parthdeora1541
      @parthdeora1541 4 года назад +30

      0.7 is for forwad baisin in silicon ,
      Not compulsary
      For germanium it's 0.3!!

    • @parthdeora1541
      @parthdeora1541 4 года назад +1

      @some1mn N nope it's 0.3 google it!

    • @james77011
      @james77011 4 года назад

      @some1mn N yes, some teach .6 volts and some teach .7 volts... Either is correct 😊

    • @jcolonna12
      @jcolonna12 4 года назад +9

      It depends on the physical transistor as the turn on voltage varies based on the physical construction

    • @jcolonna12
      @jcolonna12 4 года назад +1

      Also at the edge of saturation vbe=0.7v and Vce=0.3v for npn.

  • @altuber99_athlete
    @altuber99_athlete 6 лет назад +68

    0:41 Note: _solid state_ here means with _no moving parts,_ that is, no human intervention is needed to toogle the switch (the transistor.)

  • @honestinsincerity2270
    @honestinsincerity2270 5 лет назад +113

    Watched 3 videos on why transistors were so important and how they worked and didn't come away with anything useful.
    Watched two minutes of this video and understood exactly.

    • @AlexanderGravatt
      @AlexanderGravatt 4 года назад +1

      Same

    • @o.g.dominus
      @o.g.dominus 4 года назад +3

      Honest Insincerity 2 Exactly the same over here bro. I thank God for this video

    • @jcolonna12
      @jcolonna12 4 года назад

      Look up videos on the water analogy

    • @xanderm7338
      @xanderm7338 3 года назад +1

      This is my third video also. The first one was the Bell Labs video. Was pretty good too. Need to revisit that one. It has some names I want to write down and research. This one has very good animation.

    • @mitchellarmyguy2515
      @mitchellarmyguy2515 3 года назад

      You see these comments on every engineering video on RUclips. Apparently it's the individual and not the lesson.

  • @systematicshannon2978
    @systematicshannon2978 5 лет назад +9

    Nice explanation. Im glad someone is actually putting things into laymans terms. Thats basically the same way i learned about transistors, Except in my case i learned it was basically a miniturised version of a relay used in general automotive applications.

  • @laytonmiller5865
    @laytonmiller5865 3 года назад +1

    I am an absolute amateur with electronics, but this video his on the head a little side project I'm working on: controlling an LED strip with a microcontroller using PWM, something I was kind of considering necessary but not sure how to do. This makes it way more clear. Great video!!

  • @mrawesome6239
    @mrawesome6239 6 лет назад +22

    2:50 I’ve watched so many videos and never understood transistors, and these 30 seconds explained it to me better than anyone else ever could (I’ve worded this comment funny, haven’t I?)

    • @johnlamarca9439
      @johnlamarca9439 6 лет назад

      Mr Awesome
      Yes. I still don't understand. Maybe I should just watch other tutorial videos first before I spend my time repeating this one until I understand it.. Maybe the problem is the video and not me being unable to understand it.

    • @muhammadabdullah-vi9wi
      @muhammadabdullah-vi9wi 5 лет назад

      I @@johnlamarca9439

    • @muhammadabdullah-vi9wi
      @muhammadabdullah-vi9wi 5 лет назад

      @@johnlamarca9439 the

    • @muhammadabdullah-vi9wi
      @muhammadabdullah-vi9wi 5 лет назад

      @@johnlamarca9439 to

  • @chochooshoe
    @chochooshoe 5 лет назад +2

    this is the best explanation of transistors I've seen on RUclips.

  • @SaadAli-sz8hf
    @SaadAli-sz8hf 6 лет назад +24

    Thank God. An easy Explanation !! Much Thanks.

  • @faridamecontente7165
    @faridamecontente7165 3 года назад

    I have watched up to 10 videos to unserstand transistor and this is the only one that solved my problem. Bravo mon ami . vous etes formidable.

  • @monkeymaster6489
    @monkeymaster6489 7 лет назад +2

    Loving your channel man. These videos are excellent. Also, you have a really good voice. Extremely clear and articulate

  • @yurkshirelad
    @yurkshirelad 3 года назад

    I don't know if you're still reading comments to your videos, but your videos are excellent and easy to follow for people new to electronics.

  • @nosheen9083
    @nosheen9083 5 лет назад

    This was such a to the point, concise, easy to follow and easy to understand explanation!! Thank you!

  • @jacklynjoseph4949
    @jacklynjoseph4949 4 года назад +2

    Oh mahhhh gaasssshhh💥💥❤❤❤❤❤❤❤❤❤❤❤i love youu so much!!!!! Have my physics exam tomorrow and I've studied and have understood all concepts in the syllabus except electronics MAINLY TRANSISTORS. Now I've finally understood through this explanation!.....YOU ARE A LEGEND!!!!❤❤❤❤

  • @jamessolarz3027
    @jamessolarz3027 6 лет назад +1

    These tutorials are very helpful. I will review and repeat reviewing until I absorb the information. I am grateful and I thank you.

    • @johnlamarca9439
      @johnlamarca9439 6 лет назад

      james solarz
      Yes. I'm trying to learn this too. I will have to repeat this at least twenty times. But I suspect certain things were left out of this explanation of what a transistor is and how it works. I'll eventually learn it. If not from this video source then from a better tutorial I will find....

  • @nirkarl
    @nirkarl 4 года назад +1

    Great video! I love the way you explain things so everyone can understand and enjoy electronics, tho if we have transistors why use relays?

  • @tuongdihoc
    @tuongdihoc Год назад

    Watched two minutes of this video and understood perfectly!

  • @merseytrainz
    @merseytrainz 7 лет назад +12

    A Good and simple explanation of how a switching Transistor works. Thank you

  • @tungsongkhai4880
    @tungsongkhai4880 3 года назад

    Comment 345 A good teacher is one who makes a complicated and difficult concept simple for the student. Obviously you are one, Best Wishes from Singapore.

  • @herbertduncan5838
    @herbertduncan5838 3 года назад

    Best explanation of a transistors I have ever heard . Thank you.

  • @jeffherlache8569
    @jeffherlache8569 5 лет назад +1

    This is probably the best explanation I've seen so far. Thank you!

    • @MrDoneboy
      @MrDoneboy 3 года назад

      Check out Steel Wheels Downs, two practical videos on transistors!

  • @miltoncampossierra5228
    @miltoncampossierra5228 4 года назад

    This is the best explanation I have ever seen about transistors

  • @michamaciejewski3798
    @michamaciejewski3798 5 лет назад +1

    Finally some good explanation how transistors work!

  • @alikaampo9370
    @alikaampo9370 4 года назад

    thank you for your episode 22, it very clear to understand. can you tell us which component used for on and off the LED and the link episode used.
    many thanks.

  • @toneysheri
    @toneysheri 5 лет назад

    Where do I find the Symbol to utilize Logic Level Voltage to the circuit? I love your videos, but I'm stuck on this one. Help! Thanks!

  • @MrMattberry1
    @MrMattberry1 3 года назад +1

    Really enjoyed all these videos, more please!

  • @aecc10
    @aecc10 Год назад

    I finally get it. Sounds like the same operation of an old school control relay activated by applying voltage to the coil thus operating the relay contacts into the desired state to either pass or restrict current flow.

  • @QuizmasterLaw
    @QuizmasterLaw 5 лет назад

    which tts speech synthesizer did you use to make this?

  • @edisonedwardantony
    @edisonedwardantony 5 лет назад

    I didn't have facility during my college days.Thanks for easily understanding video's.

  • @nicholasneto8797
    @nicholasneto8797 3 года назад

    Didn't understand transistors until this video. Thank you!

  • @geelleguure8808
    @geelleguure8808 3 года назад

    This is very clear and high skilled explanation. You can’t find in most of the higher education colleges. Thanks sir, but I have a question about voltage level being applied directly to base of a transistor without voltage divider. I thought only a voltage of about 0.7 volts can be applied directly to base. Now in the above circuit we have 3.3V, is that level to high and can damage the transistor junction?

  • @RealTruthSeeker890
    @RealTruthSeeker890 5 лет назад +1

    Very well explained.... Keep up the good work... Spread knowledge.

  • @georgekerwood9100
    @georgekerwood9100 4 года назад +2

    From 2:00 even the simulation shows no current from Collector to Emitter and nor should there be. The LED is just in series between the two cells. Circuit at 2:35 fixes this.

  • @H750S
    @H750S 6 лет назад +1

    The first diagram shows current flowing out of the transistor collector back to the 3.3v power supply and out of the emitter to the 3v power supply but in the video it says that the current goes from the led through the transistor back to the 3v power supply. I thought when the transistor is turned on that current only goes one way through it? The way it’s drawn out in the second diagram makes sense to me but the first one has me confused...can anyone help me understand a little more please?

  • @gmonkman
    @gmonkman 5 лет назад

    Really good easy to follow explanation, I tried wikipedia first, but as usual it was rather opaque.

  • @tsyde2008
    @tsyde2008 4 года назад

    Where did you get the digitally controlled voltage source? I don't see it on the premium toolbar.

  • @paulmacgiollacaoine8619
    @paulmacgiollacaoine8619 6 лет назад

    Brilliant, if only it was explained like this for me in college!!!

  • @viswanathanmurali7768
    @viswanathanmurali7768 6 лет назад

    Sir please reply how the current flow in the circuit determined.Couldnt understand please help..

  • @rickynaidoo5246
    @rickynaidoo5246 5 лет назад +1

    Sir what is the transistor number that you used in the circuit?

  • @josephciaravino4115
    @josephciaravino4115 4 года назад

    The circuit animations are fantastic.

  • @ATLTraveler
    @ATLTraveler 5 лет назад +8

    Hopefully I can pass my 400 level advanced circuits final next week at MIT since I watched this video now, wish me luck

  • @Ram-py2tj
    @Ram-py2tj 6 лет назад

    thanks for this video...simply taught and catchy too!!!

  • @phbrinsden
    @phbrinsden 5 лет назад

    Nice clean explanations. Subscribed.

  • @zumi3642
    @zumi3642 2 года назад

    Thanks a lot for the informative video. What is the name of the computer program you are using to demonstrate the circuit?

  • @Maham899
    @Maham899 4 года назад

    Very good illustration of transistors

  • @CraigMansfield
    @CraigMansfield 4 года назад

    I like how you explain things. Thank you

  • @saskiavanhoutert6081
    @saskiavanhoutert6081 Год назад

    Transistors and chips are relevant for making switch-possibilities in a computer. Thanks for the explanation

  • @bestyav5529
    @bestyav5529 5 лет назад +1

    You are awesome... I wish I discovered your videos since

  • @bjarnenilsson80
    @bjarnenilsson80 4 года назад

    Why is rhe bade sometimes calked gate, is this yet another example of uk vs us englusg or is it just ibconsistant naming for other reasond

  • @michaelvaland5467
    @michaelvaland5467 4 года назад

    which program do you use for drawing the circuits

  • @mayursmahajan
    @mayursmahajan 6 лет назад

    You make it look too easy. Great stuff bro u r awesome!

  • @KAYAPOGAN
    @KAYAPOGAN 3 года назад

    Hi! Please, could you tell us which transistor should be installed to use only 01 battery increasing 1.5V to 5V to work an active buzzer 5Volts? Good video - easy to understand. Tnx :)

  • @crickshowshorts
    @crickshowshorts 2 года назад

    Kindly Can you Say What is the this software simualtor that you use?

  • @jcontrascere
    @jcontrascere 7 лет назад +62

    What software do you use to simulate your circuits? I love the way you use it! It makes it easy to visualize what is happening at the atomic level.

    • @SimplyElectronicsOfficial
      @SimplyElectronicsOfficial  7 лет назад +37

      Everycircuit.com

    • @raulmarmitajo3548
      @raulmarmitajo3548 7 лет назад +2

      I have spent months researching into circuits and found an awesome website at Gregs Electro Blog (google it if you are interested)

    • @chaddonschaddons7084
      @chaddonschaddons7084 7 лет назад +6

      Hello, you might get this question very many times so I'd suggest putting that source you mentioned, in the description so that you won't get that question asked on everyone of your future videos.

    • @luxurious0346
      @luxurious0346 7 лет назад

      Every circuit
      It's not a software
      It's just an app

    • @mrawesome6239
      @mrawesome6239 6 лет назад +5

      It costs £15 tho that’s the only problem.

  • @alwaysincentivestrumpethic6689
    @alwaysincentivestrumpethic6689 5 лет назад +2

    Great content !!! I've subscribed

  • @borhanamini
    @borhanamini 7 лет назад

    simply great tutorial, thanks.

  • @ROSHANKUMAR-vk9he
    @ROSHANKUMAR-vk9he 5 лет назад

    How does it work as a high speed switch....pls reply

  • @pingpong-kv6eq
    @pingpong-kv6eq 7 лет назад

    thank u so much....best teacher alive

  • @RAM-ez4pr
    @RAM-ez4pr Год назад

    Sir hearty thanks for this channel. please keep more videos related to electronics.

  • @FlyingSparrow001
    @FlyingSparrow001 7 лет назад

    thank you , nicely explained !

  • @alielmesawi9200
    @alielmesawi9200 7 лет назад

    hi What's the name of that software your using?

  • @ahmedblk4395
    @ahmedblk4395 4 года назад

    Thansk , much appreciated its simple and very easy to understand

  • @unknowndj242
    @unknowndj242 2 года назад

    Hi Sir, how can I use a NPN Transistor(D882) as a on off switch very fast?

  • @sr-de5nz
    @sr-de5nz 5 лет назад

    How come in other's video, the power from the battery flow from the negative side?

  • @tyreseharrington1833
    @tyreseharrington1833 6 лет назад

    Very educational!!! Thank You

  • @PontiElisha
    @PontiElisha 4 года назад

    Thanks...how can you test if a transistor is okay or faulty?

  • @inang1968
    @inang1968 4 года назад +1

    How can a small 3.3v supply a 12v? It just can?
    Or it could turn on the path to the higher voltage because the 0.7 is psssed?
    Or there's no explanation?(mostly in our school there's no explanation as to why these components work)

  • @TimpBizkit
    @TimpBizkit 5 лет назад

    I'm trying to figure out a circuit that turns on a motor when the light input to one LDR is greater than that to another. And turns off the motor when the light input to each is the same and turns on the motor in reverse when it is the second LDR receiving the most light. If I can make two of these circuits I can design a device that angles a solar panel towards the sun. I saw a crude solar tracker someone made using small solar driven motors that simply fought one another, the motor receiving the most light to its panel winning the tug of war, until both motors stalled out when the device was pointed at the sun. I was curious to design one using transistors though.

  • @FENATECH
    @FENATECH 6 лет назад +2

    Great video I just liked and subscribed.
    Question I have is within the video and working diagram at about a 1:45 min mark, the diagram is showing the current flowing away from the collector. Is this how the top 3.3V circuit is completed? I am not following/understanding the visual motion here. I would have thought that the current would go into the collector and then out through the emitter. Is this not the case?
    It also seems odd that the direction the simulation emulates the current , I was always taught that, contrary to what you would think, current/electrons travel from Negative to Positive.

    • @matthewclark855
      @matthewclark855 5 лет назад

      FENATECH I noticed this as well, seemed conflicting to how other videos showed a similar animation.

  • @KhanRealness
    @KhanRealness 6 лет назад +17

    this series taught me more than what half a semester of 3 hour classes could teach me.

    • @igrewold
      @igrewold 5 лет назад

      www.cburch.com/logisim/
      ruclips.net/user/results?search_query=logisim+transistor

  • @anjanaimesh3258
    @anjanaimesh3258 3 года назад +1

    Its a great and cool explanation 🙂

  • @alexfunkhouser8627
    @alexfunkhouser8627 2 года назад +2

    It's a bit unfortunate you did not clarify that this example is using a BJT, which is an analog current-controlled device, NOT digital voltage controlled as you implied in the video.
    It seems you were explaining the usefulness and operation of a JFET but using a BJT in the example. It would have been nice to touch on the differences between them since transistors range in their operation and are not all alike.
    I usually use Falstad for circuit simulation, so I'm guessing perhaps EveryCircuit doesn't have the same options, but it would've been nice to at least make that clarification in the video.

  • @jacksonneguinho1170
    @jacksonneguinho1170 6 лет назад

    Clearly explained. Thanks

  • @onlinetechnologytoday5636
    @onlinetechnologytoday5636 3 года назад

    Solid state switches, who knew. Great explanation!

  • @markharrisllb
    @markharrisllb 3 года назад

    What a fantastic little invention.

  • @thomaslee9684
    @thomaslee9684 5 лет назад +12

    I hope i could find these videos when I was doing my engineering degree 15 years ago. Then, I won't end up hating this subjects after all these years. Just there were no one could explain to me how a transistor works and that made me losing the interest on the subject.

  • @Surtur99
    @Surtur99 4 года назад

    Amazing video, thank you

  • @_Iokanaan_Marusidze_
    @_Iokanaan_Marusidze_ 7 лет назад +8

    thanks !

  • @pawanvaishnav5
    @pawanvaishnav5 6 лет назад

    in some video it is shown current flows from negetive to positive and in some from positive to negative plz clear in which direction its flow

  • @cezartrasfiero6443
    @cezartrasfiero6443 4 года назад

    Very good.thank you for the information..

  • @aks7124
    @aks7124 4 года назад

    Which is the software you using to make circuits on computer

  • @seshachary5580
    @seshachary5580 7 лет назад

    very educative thank you regards,

  • @saisbookshelf2688
    @saisbookshelf2688 3 года назад

    Very well explained

  • @Richie_
    @Richie_ 3 года назад

    These are great tutorials.

  • @junjiesong5708
    @junjiesong5708 4 года назад

    What is the software in this video? Could anyone tell me? thanks

  • @tribulation138
    @tribulation138 5 лет назад +1

    Cant we use a one power source to power both transistor and LED. ? Use one wire with a resistor to power transistor and one wire to power led or motor?

    • @jovetj
      @jovetj 5 лет назад +1

      Yes.

  • @foxmod6386
    @foxmod6386 2 года назад +1

    GREAT VIDEO!

  • @markproulx1472
    @markproulx1472 4 года назад

    What do the squiggly purple curves represent?

  • @jidi2282
    @jidi2282 7 лет назад

    where can i download that electronic components simulator?

    • @johnlamarca9439
      @johnlamarca9439 6 лет назад

      Ji Di
      Man. Just take a snapshot of it. Pause the video if you have to.

  • @davethelimefarmer3016
    @davethelimefarmer3016 7 лет назад

    Why do you have a separate power source as well as power from the led circuit to the base of the transistor?

    • @SimplyElectronicsOfficial
      @SimplyElectronicsOfficial  7 лет назад

      I could have a separate power source or the same power source supplying the base. I chose to use a separate power source to make it easier to understand as you can easily see that there is another source powering the base.

  • @thokarsubash
    @thokarsubash 6 лет назад

    Is this explanation works for both npn and pnp transistor?
    please let me know.
    Im so confused.

    • @souvikkundu7108
      @souvikkundu7108 6 лет назад

      Learn easily the basic concept of Transistor and Full wave and Half wave rectifier from the video link given bellow
      ruclips.net/video/KIBHW1jRBsA/видео.html

  • @SoundsFromThatGuy
    @SoundsFromThatGuy 3 года назад

    What software is this simulation on?

  • @Mahbub_Nazmul_Eng
    @Mahbub_Nazmul_Eng 5 лет назад

    awesome tutorial

  • @reidogarimpo1691
    @reidogarimpo1691 4 года назад

    1:46 your video circuit coonects the base with collector, it's wrong.

  • @fredsowards644
    @fredsowards644 5 лет назад +4

    Really like what you are able to show your audience. But it should be mentioned that current flow is from negative to positive.

    • @povnw8985
      @povnw8985 5 лет назад

      Dude, I was thinking the same thing. That's like one of the first things I learned about electricity.

    • @donkrapf
      @donkrapf 5 лет назад +3

      By convention, "current" is said to flow from positive to negative even though electron flow is in the opposite direction.

  • @The_PES_Express
    @The_PES_Express 4 года назад

    Enjoyed the video.

  • @ezeprojects5425
    @ezeprojects5425 5 лет назад +2

    something that has caused me so much grief, now in 10 minutes, voila! Thx

  • @amorgan93
    @amorgan93 4 года назад +1

    One thing confusing for me is that some of these videos show the electron flow and some show conventional flow for demonstrating the direction of the current in the circuit. It seems this video is backwards, it shows current moving from positive to negative, when in reality the electrons move from negative to positive, which can be observed in other videos from this channel. Its making it a bit harder to conceptualize trying to reverse it in my head.

  • @gospelhubdigital
    @gospelhubdigital 6 лет назад

    In 5 minutes you taught me 5 years of schooling. Thank you I subscribed

  • @vikassharma463
    @vikassharma463 5 лет назад +5

    sir, could you please tell me the of the software you are using in the video for making these interactive circuits.

    • @sonic-dna7742
      @sonic-dna7742 5 лет назад

      I would like to know too

    • @mcmaar8191
      @mcmaar8191 4 года назад

      @@sonic-dna7742 /vickas sharma,
      it's called " everycircuit " you can buy it on google play for like $10 bucks. also If you get it I reccomend " electrodroid plus " also about $10 bucks. but comes with an abundance of useful tools. bolth apps can be a pain in the ass and confusing at times, basic circuit knowledge is a must for dealing with either

  • @renegadeflower575
    @renegadeflower575 6 лет назад +1

    Thanks for the video but I think I'm getting confused. In one of your previous videos on DC circuit about how electrons flow, you stated it flows from from the negative through the load to the positive. But going a bit off the transistor topic on this video, you state current flowing from the positive through the load to the negative. Can you please shed some light on the directional flow of current and electrons in a DC circuit please?

    • @Rolf981
      @Rolf981 6 лет назад

      For electricans the flow goes from pos to ground. that has something to do with the magnetic field lines if i remember correct. But for scientist it follows the real flow of the electrons which is from gnd to pos.
      But yea for every normal person electricity flows from pos to ground.