MOSFETs and Transistors with Arduino

[@lwo7736]

Every DBW video I see, I'm just blown away how well you break stuff down. You're the single reason I'm still doing electronics

[@adnanaamir23]

Sir. Good teacher. You speak very gently and slowly. Which is good for non English people like us. Appreciate.

[@pirojfmifhghek566]

Of all the damn arduino mosfet videos out there, this is THE BEST one out there for understanding the process from beginning to end. I am eternally in your debt.

[@bluehornet6752]

Definitely one of the most fantastic learning channels on KZbin. Great learning for folks just getting into electronics--and even a great review for people who've not done this stuff for a while.

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@cloviscareca]

this channel is GREAT. This guy captures exactly the possible doubts that could be in our mind, and answer they BEFORE we even ask it! That's a teacher!

[@Doeff8]

Yes, together with bigclivedotcom they do a hell of a job on learning us a LOT.....

[@irgski]

You Sir are one of the few ppl on YT who use esd protection - wrist strap and dissipative foam for lining your parts drawers. Bravo!

[@fench1234567]

Take a look at the weather reports in Canadian cites and look at the lack of humidity!. Your cat can shock itself just scratching its own ears up there! (funny mental pic, but it's more likely to shock you) :P

[@adaum79]

Great. Your slow way of speaking makes learning much easier, even for those who don't speak English natively, like me. Congratulations!

[@abshproelec4537]

Absolutely !

[@viswanathanramakrishnan7613]

The work space of yours is marvelous. I saw one such workspace built by one gentleman in Jamshedpur telco colony who was employed in Telco at that time. I had a chance to see this along with a friend who is also son of him and was pursuing Electronic engineering . This is sometime in 1975 when I was facinated by the electronics though I did Bachelor degree in Agriculture.I wanted to have such a workspace but couldn't succeed. Whenever I see such neatly arranged KZbinrs in their lab I feel proud of them.

[@darrenstettner5381]

I’m so jealous of this guys workspace. That is some magnificently ocd organization. Beautiful!

[@vinayb5076]

Same feeling bro

[@rfdave3980]

Yeah mine is so messy. I am slob. Haha

[@ovalwingnut]

Ah, that has to be all CGI. Nobody has that COoL a shop! :O)

[@mtylermartin]

This is why I keep coming back to these videos.... workshop envy

[@stevejohnson1685]

What? Your workshop doesn't have every tiny drawer labeled and every tool in its own place on a pegboard? And a power supply spanning the gap at the bottom, and two voltmeters? and a resistor color guide?

[@rachelblack3816]

This is the cleanest and neatest shop that I've ever seen. Wow.

[@mattgeo5039]

i was just about the say the same thing. shows he is very organized. being organized says a lot about how you think and work. I would trust this man with my electronics or projects.

[@mattgeo5039]

@@nobodyelse-h6h lol lol lol lol lol .. good one .. i knew in my gut i was putting my foot into some dark deep areas lol lol

[@chrisbraid2907]

@@nobodyelse-h6h a desk is not the same as a workbench ....

[@NewYorkeez]

The man speaks with confidence, I call that Knowledge. Thanks

[@scottmcclements7566]

I call that a politician.

[@englishrupe01]

@@scottmcclements7566 No.....this man does not lie.

[@sigitdwitanto6556]

@@scottmcclements7566 L

[@smileforworldmotivationcha7144]

I dont understand why such great channel has a few subscribers. Why on earth?

[@tpobrienjr]

Thanks for wearing the static wrist strap. It demonstrates a good habit.

[@henrikbakk1]

Very informative! I'm a complete n00b, and wanted to make a delay-timer on a fan in a 3D-printed enclousure. This is now far more approachable after watching your video - thank you so much!

[@kengiosi3589]

High quality quality education and no student loans. Amazing. THANK YOU

[@bennylloyd-willner9667]

Oh, how I love when the teacher speaks calmly and without "youngsters" loud cheering and "cool" expressions! THANK YOU!

[@alanmusicman3385]

An excellent introductory tour - and for those of us doing mainly digital electronics you cover most of what we need to know about interfacing our puny logic circuits to the power hungry big-boys world of motors, relays, solenoids and lamps. One quick observation. As you noted, the LEDs on an RGB chain get quite hot. Thus, it's NOT a good idea to operate them on the reel like that for very long as they can get heat damaged and you start to get failures. Each individual LED doesn't generate much heat, but on a reel like that each position contains three LEDs (a red a green and a blue) and over a 5M length you may have a couple of hundred of them. When theyy are spread out its not really noticeable, but when they are reeled up tight together like that they generate quite a lot and if used for long they might overheat and fail.

[@glenmerwyn5195]

Your teaching and videos are so wonderful. I'm very grateful that there's people in the world teaching like you do. Awesome stuff !! Thanks !! (Watching from NZ)

[@jankorteweg1]

Another fantastic educational video from our teacher.

[@rk-do]

Fantastic! Thanks a lot for all your great, inspiring work & tutorials. Really nice that you provide a fancy website along with the videos with the detailed articles, code snippets, lib downloads and of course the PDF version of the articles. I really like your clear way of explaining things. Best wishes!

[@arthurmorgan8966]

Amazing. In older days we would have to pay for a class of this quality at a private workshop.

[@martijnvenselaar4760]

Hey, I just want to say I love your channel and it's really helping me a lot in my projects!

[@TheHellfiremissile]

Hi Bill. When watching this I thought that it might be an idea one day to show people how you progress from a fritz diagram to a maze of wires on a breadboard. I think some people (me included) have difficulty transferring from design to a pile of component placement and wire alignments. Cheers and thanks for your works.

[@michelperrotti7824]

By far, the best channel on KZbin. Many thanks for your time.

[@user-by2bs4kp7b]

I keep getting flashbacks of "the office" TV series with your intro music It's good

[@doublestarsystem]

Spending 51' watching this video was a beautiful experience where i learnt a lot about automated systems...thank you brother

[@ryancousins]

You are so good at clearly explaining how everything works. Thank you!

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@christianfacunla7550]

Thanks man, you are one of the few jewels here on youtube

[@Phipanjo]

I viewed a lot of videos about transistors/mosfets but now I really got it. Thank you, very good tutorials!

[@avp8430]

Really cool, straight-forward, clearly and easily explained. This guy makes the world a better place. For some electronics noobs and enthusiasts at least.

[@donk73]

Thanks!

[@Dronebotworkshop]

And thank you (many times over LOL)!

[@shvideo1]

An incredibly practical and absolutely fantastic video. I love your teaching style and the comprehensiveness of your topics. Thank you for taking the time to share your knowledge. This is a gem of a channel.

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@daveb7999]

This was a very helpful video. I'm new at using an Arduino (Elegoo Starter Kit) and have a great thirst for learning electronics. You really helped me understand more about transistors. Thank You!

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@braddixon3338]

Another great video very well explained and appreciated. One correction though, with the reverse biased diode across the transistor when driving the inductive load, it isn't there for the initial counter emf when the voltage is first applied, rather it is for when the field collapses, as when the applied voltage is reduced. counter emf will resist any initial current flow, the collapsing magnetic field with the inductive load will produce whatever voltage is required to drive enough current to collapse the field. it is this created voltage during the collapsing field that will pop your transistor without the reverse diode in place.

[@TheYear2525]

I was wondering about that too. Thanks for setting my world right again.

[@bhushantipnis8111]

I am an Industrial engineer with hands on experience on electronics, but never on the digital systems. I started viewing your videos and voila...here i am bringing ideas to life....Thanks...would like to connect more with you. Appreciate your work a lot..Please let me know how to get in touch with you if i have missed out reading or hearing if you ever mentioned how to do so.

[@StephenKoplin]

This was an excellent tutorial! Thank you for being so thorough, and most importantly for going SLOW!

[@CXensation]

Very good informational video, which basically demonstrates how to replace the good old mechanical relay with a modern MosFet transistor.

[@KK-rg3nj]

Best 40 minutes I've ever spent

[@kawdjer6463]

Not even a 1 second is wasted, thanks. Very good video from start to end. Explained what is transistor a general info, and how to use them in curcuit, circuit cables and connections made very clear with drawings. Nice informations and warnings along the video are also nice.

[@MilMike]

thanks! I was searching for this for weeks. I asked people on the internet how to do this but your video finally explains it well. Exactly what I need. I want to switch the christmas lights (4.5 V DC) using an arduino because I am lazy to stand up, go to the switch and use my own fingers to turn it on or off. Now I can control the lights via wifi. :))

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@TomAHawk-py6vj]

37:04 for anyone doing this for the first time, uncoil these. I learned the hard way LEDs can produce enough heat to cook themselves. Never thought about that until this very moment.

[@farhanyousaf5616]

Good tip!

[@DaleDix]

And there would be a gazillion in there with them all being flat!

[@isoguy.]

Great vid, any coverage of transistors, mosfets, bjt's etc. Will always stimulate healthy discussion. Can hardly wait for the next vid in this series. Thanks for sharing. 👍👍👍👍👍

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@niltoncezarvieira7949]

Your great knowldge allied with your calm way in explaining makes almost impossible no to learn. Thank your, Sir!

[@TheJimtanker]

I just found your channel and I love it. I've been working with Arduinos and electronics for years and I'm learning some things from your channel.

[@Thebasicmaker]

Using your video about the lidar I made a sensor for a photographer that wants to take pictures of bats, and it was easy! The first time I used a lidar and Arduino!

[@ovalwingnut]

Always impressed to see anti-static wrist straps and anti-static foam. Yes, it's that important. I wish the word would get out there. Hearing someone say "I've never had any trouble before".. is best described as "ignorance is bliss". Static issues can degrade the performance and or life of your part. It doesn't have to kill it "on the spot"... Think of shooting spit balls through a damp Kleenex. That's the delicate substrates. Blaw Blaw Blaw... Thank you! (all be it late)

[@hondaromio]

In love with your shop, absolutely amazing

[@gr_excel]

I'm from Mafra, SC, Brazil and YOU are my main reference for my electronics-related learning. Great explanation, direct, precise and organized! Congratulations for your videos! PS: i just LOVE your workshop!

[@markc9871]

Great simple explanation of a complex subject. Your graphics are priceless.

[@freedtmg16]

Such a soothing voice, you actually remind me of my electronics instructor in high school (technical high school).

[@awakendsails]

Great explanation. I like using the 2n3055 transistor on wheel chair motors. Lots of power and using 24 to 36 volts.

[@davidelm5401]

I love your videos. I learn a great deal from them. I just wanted to clarify the comments about the diode. Inductive loads resist starting and stopping their current flow. They act kind of like a flywheel. When the circuit tries to stop the motor or coil current suddenly the collapsing magnetic field attempts to keep the current flowing the same direction resulting in a large spike of voltage which can destroy the transistor. The diode allows a backward current to flow around the coil which prevents damage to the circuit.

[@raykent3211]

Well said! It's so much easier to think in terms of current than back emf. Nature won't let the magnetic field collapse in zero time, so we allow the current to continue flowing in the SAME direction through the coil by adding the diode. And the energy stored in the magnetic field gets converted to heat in coil and diode rather than some other unfortunate component.

[@TonoNamnum]

Thanks for the videos!! I was testing your example and on minute 5:20 if you apply a low voltage to the gate it will turn off not on.

[@viswanathanramakrishnan7613]

The workspace of yours is so superb. Why don't you give us the entire work space video so that we can see how nicely you have arranged the things.

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@BezUmiaru]

Awesome! I cant stop binging your channel! You have got a fantastic way of doing what you doing!

[@rondlh20]

Great job again, please note that the Rds is only valid at a Vgs of 10V, which is obviously not the case here, Vgs is below 5V, resulting in a higher Rds

[@RexxSchneider]

Indeed. Considering that the IRF series of mosfets have an equivalent in the IRL logic-level series, it seems pointless to use an IRF520 with a microcontroller when you can buy an IRL520 for about the same price and have an Rds(on) guaranteed 0.22 ohms maximum @Vgs=5V or 0.26 ohms maximum at Vgs=4V. The only comparable information on the IRF520 is 0.2 ohms max @Vgs=10V. Maybe a sample of the IRF520 will work fine with Vgs=4V, and maybe it won't, but the manufacturer isn't making any promises, so why risk it?

[@immortalsofar5314]

Thanks for this. I learn by solving problems and your videos act as a good bridge from application to theory. Sure, I'll probably spend the first couple of years being asked why I didn't know something obvious that's taught in 101, but after that I usually (in software, at least) end up doing stuff simply because I hadn't been taught that it can't be done.

[@chbonnici]

First class video with great explanation. But the problem you did not show us an FET with inductive load, like you did with the TIP120. I would appreciate if you can make a video and hook up a pulse transformer on the output of the Mosfet. Thank you again for the extremely clear explanation. Well done.

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@antonioyzarra651]

I am very grateful for the explanations and suggestions, the truth is that he takes knowledge to the highest level very seriously, thank you very much. Please do not stop with this brilliant way of approaching electronics.

[@RadioactiveDoggy]

Great tutorials. Great patient teaching. That's rare.

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@mobilisem3603]

I was able to complete a project I've been struggling with for ages now. Really helpful so thank you very much!!

[@sameerk12982]

Hello from India Sir.....thank you very much for creating such informative videos .....your videos and teachings are helping a lot....the way you teach us by doing practical things is the best way to teach....God bless you with good health and happy life....always looking for more from you.

[@michaelsaayman4652]

Thank you for such informative well structured lessons. Really do appreciate these lessons!

[@kinghowler7704]

In my opinion you are definitely a top tier content creator and you are my first option when I want to learn how to use a new sensor, but I think it's about time you got a new intro, your current one just feels off

[@Taran72]

Thank you so much for the video! It will definitely help me in my DC motor drive projects. Until now I was working with small motors for rc cars and wanted to move to the next step and drive bigger motors.

[@shinzon0]

You should always use a gate resistor, since capacity of the gate of a MOSFET causes a high current when switching on, which could destroy the I/O pin of the arduino.

[@vytautas0123]

I want to Thank you Sir for your educational project. It has really helped me to understand how on Earth this Arduino works and how does the transistors make the project working in more controlled way. Just one mouth ago I have bought my first learning Arduino set with all other electric components (lights sensors, LED bulbs, diodes and transistors, and resistors) which made me feel like i have found another world in completely new scientist . To be hones all this month after my hard work in farms where I would be just a rose grafter, I would be trying read something new or at least the same thing just to make my self memorize new things about those components. I have been working in one company as an LED installer, where I would be operating cnc and making frames for the light panels. I really loved that job. I taught I am gone really want to carry on being interest in this new subject because I have found electricity as a really charming shining :D thing. I was amazed how that job have really made in fluent to my new interest.

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@giorgioventurini2856]

Thanks a lot for all this work, which becomes a "must watch" for all makers.

[@ChrisSavageEngineer]

As a note regarding the IRF520, the RDS was given and then the Gate threshold. But the RDS value is only valid when the Gate is at 10V. At 4V the RDS would be higher.

[@RexxSchneider]

Indeed. But worse than that, it's not specified, so you have no idea what it might be, and if it turns out to be high enough to melt the mosfet at higher currents, you can't blame the manufacturer. Also the gate threshold voltage is specified for a drain current of 250μA. You can get a lot more than that directly out of the Arduino! Use an IRL520 and you have a specified maximum Rds(on) of 0.26 ohms @Vgs=4V.

[@Beerbatter1962]

Good stuff sir. Fairly comprehensive while still being practical and to the point. Well presented and easy to follow. Keep it coming, and most importantly, thanks for creating.

[@CraigMansfield]

Very good. Just what I need for my project. Thank you. Very well made video

[@clairsmyers3571]

Those are TO3's the TO 66's are round and I believe stud mounted but, I know they are round and the TO3 is diamond shaped. Brings back memories! I love the video! Great demonstration!

[@RexxSchneider]

Actually, TO-66 is just a smaller version of the TO-3, perhaps a bit more pointy at the ends to fit the same sized mounting holes. The ones in the video were TO-3.

[@MMKurdia]

It's a really great video, I liked it a lot. It's a bit slow, so it's easily watchable at 1.5x playback speed. Thanks.

[@andreweastland9634]

The arduino already has a pullup resistor built in, you don't need the external pullup, just set pinmode to INPUT_PULLUP to enable it.

[@SuperGanga2010]

Code suggestion: use #define and/or const variables instead of regular global variables for static values (pin #, physical constants, etc). Why? This matters when memory is a constrained resource. The compiler puts #define values and const variable values into the machine code, which is stored on Arduino's flash memory. In contrast, the compiler allocates space for regular global variables in Arduino's SRAM. Arduino UNO has only 2K of SRAM, but 32K of Flash. The other reason is readability. You can use #define and/or const variable to implicitly document that this value does not change during runtime. A regular variable suggests that the value might change.

[@iracreativeworld8323]

kzbin.info/www/bejne/hZ2qqZ6NqdSjf8k

[@jimbodee4043]

Very informative and consistent detail. Nice examples in the real use.

[@vogel431]

Great video! Clear and easy to follow. You mention everything that is needed to mention, which makes it comfortable to follow. Thank you.

[@beamishjames]

What a brilliant channel. Keep up the good work, your content and delivery is on point!

[@SusanAmberBruce]

Lovely jingle and beautiful workshop

[@RexxSchneider]

At 21:35 you suggest that the lamp is a lot brighter when connected directly to the battery because of "the 0.7V drop" across the transistor. Now, you don't tell us the current that is going through the transistor (and it will be less than 1A because you have no heatsink), but a TIP120 Darlington power transistor will have a typical Vce(sat) of at least that even with tiny collector currents, and potentially rather more, depending on sample variations, rising to a maximum of 2V @3A and 4V @5A. I just wanted to warn experimenters not to count on as little as 0.7V drop across a TIP120 when delivering significant currents.

[@TheRealStructurer]

You have made another great video for tinkerers like me 👍🏻

[@decem_unosquattro9538]

Very good explantation of how it works. Most interesting.👍🏻

[@JohnSmith-td6dn]

This was great! I don't have the components yet for this. But now I do have the urgency to get them. This is so over my skill level so far. You set this up and explained it so well I'm going to give it a try anyway.

[@mimissunshine7065]

Im very new in circuits, can you explain whats the purpose of the 2.2k resistor and how do you pick a potentiometer for a certain project? Thank you!

[@RexxSchneider]

Because a bipolar transistor needs a current into its base to work, it is known as a "current-driven" device. But you cannot just put any voltage onto the base as it might draw too much current and fry the transistor. So you use your knowledge of the voltage you have available from the Arduino (around 5V) and Ohm's law to determine that a 2.2K resistor will limit the current supplied to a couple of milliamps, which is ideal for this circuit. If you need more current, you can use a slightly smaller resistor, but you won't go below 270 ohms because the Arduino can't supply more than 20mA from its digital pins anyway.

[@CoderDad]

That's a top level demonstration / tutorial. Thank you.

[@glenwolmarans7078]

Thank you so much for sharing this knowledge and well explained and demonstrated.

[@MindTrip888]

You're The Man! Thanks for all your efforts. You're fast becoming my favorite teacher! Almost everything I want to do, you have already have the videos made! Timing is everything. What an adventure... Subscribed and checking out the website and forum. Good technology is less costly these days to bring this all together like never before in history. Android USB OTG to a Arduino Mega, is quite possibly the greatest simple potential for AI robots.

[@danielmeecham464]

Thank you sir! I really needed to hear the description and function of these transistors. It is tremendously helpful!

[@SkipFlem]

I turn the speed up to X1.5. Actually makes it easier to pay attention and view longer. THANK YOU!

[@Railbugman]

How do you do that ???

[@150877z]

You mean turn speed down to slow video?

[@150877z]

Jeff go to menu 3 dots, uper rigth and there you can change speed of video

[@VictorYarema]

Thanks a lot for a great video! What is the purpose of connecting positive output of power source to VIN of each module?

[@donupanandaamarasinghe1640]

Thanks for Wonderful workshop in back ground; clear flow of lesson and practical guide

[@yogeshykvOfficial]

Exciting and well-put video. Thank you, Sir!!

[@domcognato378]

Saw this last weekend. Helpful video

[@mandelbro777]

Awesome video's my man. Keep it up. It must be like being a high school electronics teacher but with the added bonus of 1) only reaching students who actually care about the lesson, and 2) not having to put up with the difficult students who hold up the class because they should otherwise jut be breaking rocks somewhere or at a military school - you know the types I mean :)

[@iot_enthusiast]

thoroughly enjoyed the fundamentals of electronics :)

[@مييناحمر]

Fantastic! Thanks a lot for all your great, inspiring work & tutorials.

[@PeterMikeSolomon]

Can you please explain why you need the resistors you used and the reasoning behind the values of the resistors? Thanks for the wonderful information!

[@RexxSchneider]

@Kevin Original A good explanation of the need for a gate-source resistor, but it's a mistake to think that the gain of a BJT is "typically" above 100 when used as a switch. A BJT in saturation is almost always specified with a base current 1/10 of the collector current to ensure the given saturation voltage. Look for the conditions specified for Vce(sat) on any transistor's datasheet. (Except a BC547, where it's 1/20.)

[@federicocimarosti3176]

This great man, was surely born to be a teacher, thank you by hart

[@xfilex37]

Great! Your teaching and videos are so wonderful. Knowledgeable and detailed, great stuff, mate! Thanks a lot! Your slow way of speaking makes learning much easier, even for those who don't speak English well, like me. Congratulations!

[@RexxSchneider]

And you can always set the playback speed to 1.5x otherwise😀

[@Ravewayvideos]

just to share. i`m impressed, after youtube autoload this video while i was making something else, my brain recognize your voice... WOW how long i met you. =) Nice to see you again. Keep safe.