Here is why MOSFET drivers are sometimes essential! || MOSFET Driver Part 1 (Driver, Bootstrapping)

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3 жыл бұрын

Part 2: • Here is why Gate-Drive...
Do you want to know more about the Würth Elektronik components? Then click here: bit.ly/we_onlinecatalog_EN
Previous video: • DIY LiPo Supercharger!...
Electronic Basics #23: Transistor (MOSFET) as a Switch: • Electronic Basics #23:...
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In this video we will be having a closer look on how to drive MOSFETs. That means I will show you different examples on how to turn on/off a MOSFET with a microcontroller. We will investigate why and how much gate current is flowing and how the gate capacitance pretty much forces us to use a MOSFET driver at some point. Along the way you will also learn about what bootstrapping is and when to use it and you will hear a tiny bit about a gate-drive transformer. Let's get started!
Websites which were shown during the video:
www.infineon.com/dgdl/irlz44n...
www.ti.com/lit/ds/symlink/lmg...
www.ti.com/lit/an/slyt664/sly....
www.ti.com/lit/ml/slua618a/sl...
www.wikiwand.com/de/Gate-Treiber
Thanks to the Würth Elektronik eiSos Group for supporting this video.
Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod
(incompetech.com)

Пікірлер: 755

@greatscottlab 3 жыл бұрын

Part 2: kzfaq.info/get/bejne/eJ11pNWXl7OReas.html

@aatifshah8476 3 жыл бұрын

Dear sir i just subscribe to ur channel after this videos will u plz teach us the how to design circuit how to choose what calculation formulae require... to trace the whole circuit .

@user-vr4ih6jg3n 2 жыл бұрын

Thank you for your amazing video as always. I had a short-circuit in my brain here 4:48, though. What were you doing? I really have no clue what's happening there.

@revilixjohnsen9496 Жыл бұрын

Ok sorry im not very talentet in Curcuit stuff but... Is the Condensator not pulling the Drain under the Gate Voltage in stead of adding up the Supply and the Condensator? I realy tryed to Rap my head around it. But i cant see how it schould pull the Voltage over its supply. Bevause 2x 12 Volte parallel are still 12V just in Series they get 24V. So i think the Condensator is "Chargin Negativ" and "Pulling Charge" away from the drain to make the Voltage differenz. Caus it cant charge over its supply.

@engjds Жыл бұрын

Good video, was using it to refresh my knowledge, one point, thermal runaway can be eliminated using a source resistor, so as 'I.s' increase, the voltage across the resistor increases reducing Vgs - just a form of negative feedback, can also be used on bipolars.

@engjds Жыл бұрын

PS: another way, is to generate a seperate power rail above the drain voltage-for those thinking of doing this.

@cornoadmin 3 жыл бұрын

It bothers me that you always scrub the highlighter until it smears. Sorry, I couldn't hold it back any longer.

@alexn78666 3 жыл бұрын

..... I CAN'T EITHER! Finally somebody said it. That and underlining things until that pen is definitely bleeding through the page..

@dhammikak 3 жыл бұрын

I thought it is only me. it's soooo annoying to see that and writing on the same letter twice.

@xamax4 3 жыл бұрын

my daughter does the same thing, she is 3y old.

@gene_Code 3 жыл бұрын

Yea like wait the to dry first before highlighting them!! omg!

@jvon3885 3 жыл бұрын

@@gene_Code sorry but your sentence is.....let's say, out of order. Kinda the same annoyance.....lol.

@jayk8594 3 жыл бұрын

The slowly blackening tip of the yellow highlighter gives me flashbacks to college.

@closure4791 3 жыл бұрын

Yeah dude def needs a laser printer

@nate796 2 жыл бұрын

If you made a full blown course of how to get started in constructing technology I’d pay for it. I love these videos would love to learn the basics so I could do projects like this.

@EternalExistence 3 жыл бұрын

What can I say except give him an award.

@greatscottlab 3 жыл бұрын

Thanks mate :-)

@EternalExistence 3 жыл бұрын

@@greatscottlab You are most welcome

@rxcreativity8441 3 жыл бұрын

Make a fm transmitter

@panicfarm9874 3 жыл бұрын

Salt bae isn't a good cook and only a butcher

@hmm3544 3 жыл бұрын

@@greatscottlab can you help me in the 'buck boost circiut' code. in my area attiny is not available ım limited to nano and registers in code not compatible

@Asu01 3 жыл бұрын

Another reason to use MOSFET driver: cross-conduction prevention that could prevent your Metal Oxide Silicon Field Effect Transistor into becoming Magically Obliterated, Smoke n' Fire Emitting Transistor in a bridge configuration.

@tatzecom 3 жыл бұрын

b-bridge? As in... FULL BRIDGE RECTIFIER?

@greatscottlab 3 жыл бұрын

Yep. True

@PrajjalakChattopadhyay 3 жыл бұрын

Exactly! H-bridge drivers have dead time for that...

@fabriziobrutti1205 3 жыл бұрын

@@greatscottlab Hi mate... When is it coming the part 2? 👍

@tonysofla 3 жыл бұрын

Most H-Bridge already have driver and cross-detection or so-called dead-time, if you need the power by using 4 (or 6 for brushless) stand-alone MOSFET's, you should not just use mcu-gpio to drive them that is for sure.

@anl2468 3 жыл бұрын

Dude you just resumed my B.S. Electrical Engineerging thesis on like 13 minutes. WTF Just awesome.

@iNezerroth 3 жыл бұрын

Bullshit electrical engineering? I'm also good at it.

@alexandersolon6548 3 жыл бұрын

what was your thesis about?

@anl2468 3 жыл бұрын

@@iNezerroth Basically feels like it

@anl2468 3 жыл бұрын

@@alexandersolon6548 I assembled a three phase inverter to test different digital control schemes, and evaluate how it affects the output harmonics. So this video summarize the all chapter where i explanied the mosfet's response and why you need the driver

@alexandersolon6548 3 жыл бұрын

@@anl2468 can i have a link to the paper? i would like to read it.

@johnmcclain3887 3 жыл бұрын

I am so glad so many people like yourself are out there, getting on youtube, and expanding their futures, while teaching. I'm an old fart, I've been working in this field more than fifty years, but you've taught me more than a thing or two, "surface mount, liquid solder, oven soldering", what's this world coming to? Very nice demonstration, thank you.

@sidewinderam9m 3 жыл бұрын

If you had 100 videos about driving MOSFET gates, I would probably binge what all of them today. This is great, thank you.

@wesleymays1931 3 жыл бұрын

"The *field* of power electronics" IC what you did there Scott :) Edit: Damn, thread ended. Was hoping we'd see more electronics puns.

@greatscottlab 3 жыл бұрын

;-)

@SopanKotbagi 3 жыл бұрын

uhh, that was a pun? nah

@kellyjackson7889 3 жыл бұрын

I Gauss yer trying to be funny.Try to resist the urge to use puns or be inducted into the hall of lame.

@kellyjackson7889 3 жыл бұрын

@@tinygriffy Really? I'm genuinely Schottk'd!

@cyantwo936 3 жыл бұрын

Damn, made me lol

@rohan_4dr 3 жыл бұрын

This is exactly what I was looking for. Really Great scott!!

@greatscottlab 3 жыл бұрын

Great to hear!

@fabriziobrutti1205 3 жыл бұрын

@@greatscottlab Hi mate... When is it coming the part 2? 👍

@victordesanderobledo4522 3 жыл бұрын

13:15 "But, of cousre, you don't know everything yet" It's me, in every aspect of my life. Especially when I think I know what I'm doing.

@Ritzz45 Жыл бұрын

You know what, there is something therapeutic and calming about the way you speak. I've been subscribed for years and just had a moment.

@blanana_m 3 жыл бұрын

Wonderful Video! I didn't know about mosfet drivers before this video but now I know what to do with them, Thanks!

@greatscottlab 3 жыл бұрын

Glad to help!

@zvonkoskija8036 3 жыл бұрын

That moment when you find out what to do with mosfet...i remember it very well That was a moment i started to prepare myself for real electronic jobs, old yugoslavian repair equipment, mostly chinese parts and basic knowlege. Today i still work with those tools and equipment but i smoke weed

@anuragbarhoriya3284 3 жыл бұрын

While Iam watching your video, a music video came where two teenage boy and girl singing rum pum pum song please give the name of artist or link if you can or any one.

@rxcreativity8441 3 жыл бұрын

@@greatscottlab make a fm transmitter

@XanthiumIndustries 2 жыл бұрын

we have a youtube channel that deals with Arduino,ATmega328P,Java,Serial programming ,robotics. So if you like these stuff do Subscribe. Sorry for annoying

@DrGreenGiant 3 жыл бұрын

Genuinely the best explanation of MOSFETs and how to drive them I've ever seen. The only thing missing, which can trip people up, is depletion vs enhancement mode for both P and N channel

@nealmaxwell790 3 жыл бұрын

I have an exam on mosfets in two days. You have no idea how much this helped me

@mattwillis3219 3 жыл бұрын

Amazing work GreatScott!, this is yet another example of a series of your invaluable electronics learning resources.

@modelrogers.19 3 жыл бұрын

Happy new years, greatscott. Thanks for bringing us all along! I appreciate you!

@Bhavesh_g20 3 жыл бұрын

I started viewing your video nearly 4 years ago when I didnt knew anything about electronics and now I know things about electronics still I am enjoying how you explain

@HoXDipannew 3 жыл бұрын

BYE THE WAY I AM ALSO MAKING ARDUINO PROJECTS PLEASE TAKE A LOOK :)

@thomascornelissen5858 3 жыл бұрын

Great timing on this subject. I was planning to look into the usage of gate drivers tomorrow.

@ChrisWilliams-pu8pj 3 жыл бұрын

Enjoy the detail you put into your videos...even if I don't always understand what is going on. Thank you!

@rogerbeck3018 3 жыл бұрын

I love the detail you provide - I do not understand on the first viewing, but that is the strength of online, view it more than once

@kleindavid9416 Жыл бұрын

I am blown away of how professional this is...

3 жыл бұрын

This is the best video you've made for months! I'm very excited about part 2.

@CTCTraining1 3 жыл бұрын

Huge thanks for including your workings in the videos ... so often folk try to cover such topics and just hand-wave the selection of component values. Big takeaway... if in doubt, add more MOSFETs!

@Fix_It_Again_Tony 3 жыл бұрын

Very well done videos. You have a natural talent for teaching. You lay out the concepts in a logical way which makes them easy to understand. I have a formal education in electronics, but informal instruction like this through KZfaq is really amazing for the hobbyist without a formal education. You have earned a new subscriber. I've used plenty of MOSFETs in a variety of circuits in the past, but even professionals seldom just know how to do these things from memory. Unless you build the same circuits all the time it is often helpful to study some references before designing anything. I think videos like this are even useful for professional EEs who want to brush up on the concepts before diving into a design. I just bought a broken plasma cutter. It works just like a big off-line SMPS by rectifying the 240 VAC in to 350 VDC, then switching the 350 VDC with a variable current limit and rectifying the resulting AC to develop the 10-60A needed for cutting up to 3/4" (19 mm) steel like the proverbial hot knife through butter. On the switching board are 16 FETs arranged in four groups of four in an H-bridge. I can see two rather large torodial gate drive transformers on the board. I am looking forward to the next video to make sure the technical details of using gate drive transformers are fresh in my mind.

@DmitriyKhazansky 3 жыл бұрын

I’d love to see you discuss the consequences of using a 3.3v PWM output as provided by an ESP controller. Currently I have some designs where I’m providing a 15vdc gate driver voltage to facilitate good MOSFET switching, but that’s now a second power supply on the pcb (in addition to the 5vdc one to drive the ESP). The MOSFETs are driving 24vdc LEDs.

@yashsaini3410 3 жыл бұрын

Electroboom is uploading frequently and great Scott too

@Thamli 3 жыл бұрын

Germany is in hard lockdown again, so not much to do besides making videos, I guess

@greatscottlab 3 жыл бұрын

I try ;-) One more episode next week and then I will take a longer break.

@trikinuke 3 жыл бұрын

Check 2 another smart guys youtube channels, 'DIY Perks' and 'Sorin - DIY Electrical Nerd'

@rohanpawar1603 3 жыл бұрын

u are right brp

@ultimatebaadshah7013 3 жыл бұрын

@@greatscottlab please cover all MOSFET topic. And Thank you for your efforts.

@jassimjaved3309 3 жыл бұрын

Very Nice and informative video greatscott! These are an absolute gem for engineering students! And they help tremendously in making projects. Thank you for sharing your knowledge with us!

@vinayakonimani7628 3 жыл бұрын

I never understand your vdos (except a few), but I appreciate your knowledge!! Hats off!!

@jamesboby2206 3 жыл бұрын

Great video!! Love the new music. I appreciate the consistency and quality of your videos too. Keep em coming!!!

@isettech 3 жыл бұрын

For some of those applications, you can use a MOSFET driver directly to drive the LED Load. The ones for example in my inverter are rated for 9 Amps and actively drive high and low, which is useful if you want to encode data on a fiber or laser diode.

@sam-po2mf 3 жыл бұрын

I wish I could do more of practical, you really set good example with calculation it also helping me with theory and calculation

@WistrelChianti 2 жыл бұрын

So glad I came back and watched this again. Was defo worth the 2nd viewing.

@scottmorgan5370 3 жыл бұрын

I have no idea what you're talking about, but I do like your videos. Job well done...

@Johennessy 3 жыл бұрын

Wieviel Arbeit in dem Video steckt. Krass. Mega, dass du das machst! Bin von Anfang an dabei ;)

@Saint_Oscar 3 жыл бұрын

THANK YOU!!! I've been wondering this for years but always forgot to look into it!

@thesewalkamongstus8367 3 жыл бұрын

Your ability to deMystify some aspects of electronic engineering is of great credit to you, You have helped me so very much as a "Mature" student (I am 62 and still learning.) Many thanks and keep up the good work !!

@greatscottlab 3 жыл бұрын

Glad to help

@ShahidulsPerspective 8 ай бұрын

🎯 Key Takeaways for quick navigation: 00:01 🤖 Introduction to MOSFETs in power electronics: 02:13 💡 Practical example: Switching a high-power LED with a MOSFET: 04:57 🔄 Using an Arduino microcontroller to control a MOSFET: 08:09 🔌 Challenges with low-frequency microcontroller MOSFET driving: 10:01 ⚙️ Introduction to MOSFET drivers and MOSFET driver ICs: 11:49 🔌 Bootstrapping for gate voltage in half-bridge circuits: 13:11 🎓 Conclusion and teaser for Part 2: Made with HARPA AI

@kabandajamir9844 2 жыл бұрын

The world's best teacher

@patchnplay 3 жыл бұрын

Really like your in-depth videos on subjects like this one. Saves me lots of time wondering why the magic smoke escaped from my MOSFETs ;-). Looking forward to part 2!

@RedDeckRedemption 5 ай бұрын

My HVAC electrical teacher's favorite line; "once the smoke comes out, you can't put the smoke back in" (usually referring to transformers, as several dudes hooked them up backwards 😂)

@jacoscholtz2716 3 жыл бұрын

Thanks so much for your videos. I am a fan. Working my way towards PWM treadmill motor driver and this might help. Waiting for Part 2!

@SinisterBlackShadow 3 жыл бұрын

Great video! There were a few things I was missing apparently when I drive MOSFETS. Thanks for the information!

@MartinPHellwig 3 жыл бұрын

Hey you got Würth as a sponsor, that is a good call from them! I certainly will check their products out!

@OtherDalfite 3 жыл бұрын

Thank you for the video scott. I was researching bootstrapping capacitors/mosfet gate driver ICs a while back

@sauritinfo2248 3 жыл бұрын

You deliver the right video at right time......

@kiromaisus 7 ай бұрын

Very clear content. Informative for the beginners. Keep going.

@EDGARDOUX1701 3 жыл бұрын

Great, can't wait for part 2 Scott. Thank you.

@usmanmehmood55 3 жыл бұрын

Great video. I have been using MOSFET drivers in my designs for quite some time now, without really knowing (or caring, tbh) about their inner working. Thanks to you, I can now make better component selections and designs. :)

@mohammedyasarshaikh4090 Жыл бұрын

help me to control a DC motor please, I am using IRF3205, and the 12V geared DC motor is not turning off...

@kesor6 3 жыл бұрын

I couldn't understand half of it ... but got the gist. Can't wait for Part II to hit that Like again!

@africanelectron751 2 жыл бұрын

This video helped me solve a problem on a product design that came from an outsourced electronics engineer.

@Delali 3 жыл бұрын

this is very informative Mr. Scott. Really appreciate you taking the time to explain the various pros and cons.

@greatscottlab 3 жыл бұрын

Glad it was helpful!

@Delali 3 жыл бұрын

@@greatscottlab which high side low side mosfet driver would you recommend for a DIY inverter circuit?

@victorinborsciov6817 3 жыл бұрын

Long time waited, great explanation thank you for doing such a good job.

@PerchEagle 2 жыл бұрын

Absolutely amazing tutorial !

@robinsattahip2376 3 жыл бұрын

I enjoy your videos and especially your knowledge and presentation. Thank you

@dariodalcin5177 3 жыл бұрын

Finally the video we have all been waiting for

@JorgeDriver 3 жыл бұрын

Great videos as always! Danke für die tolle Videos, ich lerne viel!

@yeyee2418 3 жыл бұрын

i've been always confused with the term bootstrapping, now you explained it clearly with the floating ground. great video as always sir!

@greatscottlab 3 жыл бұрын

Glad it helped!

@adruvitpandit5816 2 жыл бұрын

Great Scott is truly Great!

@terencezjw 3 жыл бұрын

He explain way better then my lecture in school a thousand thumb up for u Scott.

@mandelbro777 3 жыл бұрын

great explanation video best I've seen, and you've surveyed all the major issues one is confronted with using MOSFET's

@MrBOB-hj8jq 2 жыл бұрын

You truly are great Scott, cause this video was great!

@greatscottlab 2 жыл бұрын

Thank you :-)

@kepala2desa 3 жыл бұрын

Thanks for sharing good electronic knowledge with us.. GreatScott👍👍

@bfx8185 3 жыл бұрын

Great explanation ! Short and sufficient.

@michaelschwager786 Жыл бұрын

Wow awesome. So concise and understandable.

@quantumlab9130 3 жыл бұрын

Thank you, I was just about to start working on a Tesla coil project and now I know why some designs use mosfet drives and some don’t.

@sebastiannobody1142 3 жыл бұрын

One of your best videos!

@guvenozturk8962 Жыл бұрын

You are really Great,mr.Scott! thank you for the video.

@Jose-tw9bl 3 жыл бұрын

Love this power electronics videos! Thanks!

@PhilipHubbe 3 жыл бұрын

Great video! I watched it twice.

@bratkartoffel161 3 жыл бұрын

A short summary at the end of such highly information dense video would be great! Keep up the awesome work!

@HoXDipannew 3 жыл бұрын

BYE THE WAY I AM ALSO MAKING ARDUINO PROJECTS PLEASE TAKE A LOOK :)

@arindambala6079 2 жыл бұрын

Really a great video...very helpful...Thank you GreatScott

@sanfinity_ 3 жыл бұрын

Have a wonderfull chrismas and a happy newyear Great Scout🎉

@greatscottlab 3 жыл бұрын

Same to you!

@aliazadasl8129 3 жыл бұрын

As always great content, good job great scott

@scottstevens7569 3 жыл бұрын

Good Stuff! Looking forward to part 2!

@nickhubbard3671 3 жыл бұрын

Good introduction to driving FETs. Thanks

@drm1drm1 3 жыл бұрын

Best video yet.

@Lionel_Walder 3 жыл бұрын

Comme "Gadget Reboot" des vidéos super claires jusqu'au fond du détail 👍

@pierreretief 2 жыл бұрын

What a bloody excellent video!

@boxoflazuardi9421 Жыл бұрын

great explanation sir. now i can uderstand mosfet more

@joshtr4645 3 жыл бұрын

thanks for this! ready for the second part!!!

@loadingUserID... 3 жыл бұрын

This was exactly the video I needed! Thanks :)

@atharvakulkarni523 3 ай бұрын

dude awesome! also ur handwriting is a gem!

@SohailKhan-nn1cx 3 жыл бұрын

Finally some different sponser!!😂

@tranxn7971 3 жыл бұрын

Excellent video and great explanations. Thank you really much for sharing all of these.

@HoXDipannew 3 жыл бұрын

BYE THE WAY I AM ALSO MAKING ARDUINO PROJECTS PLEASE TAKE A LOOK :)

@alejandroalzatesanchez 3 жыл бұрын

You are bringin' me good ideas to make something

@ACMHK11 3 жыл бұрын

Please tell me I'm not the only one who lmao at needing the breakout board. "It only comes in smd." 10:20 PogChamp on getting it down to 70 ns.

@ChristieNel 3 жыл бұрын

Gosh, I've blown up a lot of components learning about FETs. There's a lot to get your head around. It gets even more exciting when you have inductive loads. Gate drivers and bridges definitely are very useful.

@mohammedyasarshaikh4090 Жыл бұрын

help me to control a DC motor please, I am using IRF3205, and the 12V geared DC motor is not turning off...Thanks

@diggleboy 3 жыл бұрын

Great breakdown of one of the world's most popular devices and circuitry. This is used in practically every switch mode power supply out there, including laptop power supplies and desktop PC power supplies, just to name a few. Power electronics including switch mode power circuits will become even more popular with electrification of vehicles. Let's all get ready for dangerous high voltage digital circuits! Yes!

@moonmatthew 3 жыл бұрын

Yey! Another great video! Watching from state below yours! (Czech Republic)

@greatscottlab 3 жыл бұрын

Awesome! Thank you!

@oceans1291 Жыл бұрын

I've built various circuits based on MOSFETs but all the time Optocoupler based circuits works best for me and also would love to share that it's the only cheap, hassle-free and efficient way to drive the MOSFETs 😄