What are MOSFET gate drivers? Why do we need MOSFET gate driver? MOSFET driver explained.

#foolishengineer #MOSFETdriver #gatedriver
0:00 Skip Intro
00:37 Logic MOSFET driving
00:54 Drive Voltage conversion
02:45 Disadvantage Drive Voltage conversion
03:51 MOSFET driver advantage
05:09 Low Voltage compatibility
05:31 Transient protection
06:04 Switching speed
06:24 Isolation
06:36 High side drive
References:
Toshiba app note - MOSFET Gate Drive Circuit
www.ti.com/lit/ml/slua618a/sl...
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[@mrmilan2012]

Excellent way to introduce any subject with graphical pattern.. 👍👍 This s the key of electronic. Thanks 🙏

[@andrewparker2751]

Very well done. I appreciate the animations, esp. showing when the mosfet acts like a switch or an open.

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@HeavyMetalPianoChnl]

That was the best video I’ve seen on the subject. Thank you very much!

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@Bednar121]

Awesome video, really good explainations, and no tomfoolery, straight to the point, yet no information is missing ^_^

[@opera5714]

Many think they always need to use a high driver in a low speed application. They can get into a pack of trouble when these fast switching currents introduce noise. I sometimes purposely slow down switching speeds to prevent these problems. I prefer to use drivers with low supply voltage protection to avoid FET overheating due to low drive voltage.

[@electronicslab_in]

Switching a high side mosfet is bit tricky. For example, using a simple transistor based gate driver for N type mosfet connected on positive rail of buck conveter would cause a shoot through fault. Gate drivers ic becomes really handy for such cases

[@tonysofla]

You do not always need one if you don't do high speed switching, change gpio setting to high drive strength and get a low Vgs mosfet that is 100% on at 1Volt like the RU1J002YNTCL

[@durgaprasadnaredla5832]

The best lecturer I ever had in KZbin.. The concept is clear cut.. Excellent explanation.. 🙏🙏

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@shiv8144]

@@FoolishEngineerplease help me sir I will share defect once u give me email id

[@gkdresden]

Many makers use their MOSFET gate drivers not with their full performance. So they are often surpriced by considerably higher switching losses than expected. Most of the gate drivers devices can provide gate currents of 1 A, 4 A or even more. But they can't provide them if the circuit design has no buffer capacitors immediately at power supply pins of the gate driver IC and also if the MOSFET is considerably separated from the gate driver's output pin. The high current must be supplied within nanoseconds. This is impossible if there are considerable line inductances.

[@shiv8144]

Hi can u help me ? There is a defect in my system’s pcb and I doubt gate driver IC

[@thpeti]

If no high frequency load switching requierd (eg. pwm motor speed control, inverter etc.) I use 74HCT595's for driving mosfets. Their outputs are also grounded by 10k resistors, to turn off outputs when the registers are in high impedance mode. I run these shift registers from 5V, and I use an optocoupler for level shifting and for protecting the micro (which runs from a separate 3.3V power rail) against transients. I've built dozens of these output cards, and all of them are running smoothly. I also use a trick, an extra optocoupler, which is fed through a capacitor, and connected to a GPIO which state is inverted innevery loop cycle. Every H-L transition is discharging a capacitor by the emitter of the optocoupler, so if the program freezes on the micro, all outputs will be turned off immediately.

[@rickhunt3183]

pretty slick...Im going to start doing that as well.

[@beeman1885]

The youtube algorithm put this in my feed. I thought it was very well done. I did subscribe as many other videos on the channel look just as interesting. If I had to make one suggestion, don’t contaminate a great instructional video with political figures (of any persuasion) even if used for comic relief. Some of us (I’m in the U.S.) watch videos like this to learn and to get away from the news of the day. Just my 2 cents for what it’s worth. Great work.

[@FoolishEngineer]

thank you for your suggestion

[@raratronics5002]

Well crafted,appreciate ur efforts

[@eacosnypher9648]

Thank you very much, you are a great teacher!

[@geoffreyguy8498]

Hi yes I was playing today so I am beginning to know what you are talking about. Well done.

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@j.d.3269]

Interesting! Subscribed.

[@luisalbertoparada5757]

Excelente clase... Un new suscriptor. Venezuela

[@FoolishEngineer]

Thank You!

[@Bianchi77]

Nice info, thanks for sharing it :)

[@tranluan9391]

It's very helpful video. Thank you

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@Packer1290]

Any suggestions for a single, cheap gate driver IC like the one shown in the video?

[@kkgt6591]

What an amazing explanation

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@danielimanah8681]

Nice description for mosfet drivers which very tricky and logical

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@danielimanah8681]

But why do mosfet blowup if any error happens to the drivers or trigger ic mostly to H-Bridge inverters?

[@bernym4047]

Well explained. Thank you.

[@FoolishEngineer]

Thank you so much! Please show support to my video with Super thanks.

[@paulmillard1130]

Brilliant! I use so many mosfets and my drivers are rather basic.

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@renaissanceman5847]

Just use a MAX232... it accepts a logic input and can drive a MOSFET or IGBT with ease. the MAX232 was designed to drive RS232 signals though inductive and capacitive loads and provides both a positive and negative output which s ideal for driving gates and it generates its own step up voltage

[@solosailorsv8065]

and it is FAR cheaper too

[@rameshwarshelke4633]

Really thanks sir 🙏

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@electrical_engineer1]

Sir, how to worke three phase circuit mosfet in smps, please make in video. How yo test safety for live supply pcb in there phase ,mosfet gate and source voltage

[@AlexanderBukh]

well explained, ty

[@FoolishEngineer]

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[@gazzacroy]

nice video fella :)

[@FoolishEngineer]

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[@DOuGTrainer]

I have a helpful pronunciation suggestion for “provide” at 0:10 and “voltage” at 0:12 which I'd like to share with you offline. Regards. -DP, Henderson, NV, USA

[@minakshisingh882]

IF i am using TC4420 gate driver ic we didnot gate output voltage of 14 volt

[@xurshidsodiqov9323]

Goog job. Great thanks 😊

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@xurshidsodiqov9323]

@@FoolishEngineer Of course 😎👍

[@palliyil]

Which good gate driver ICS are available in local shops in India? Need it for 100khz ish switching. I practically took a list of different ICS to the shop, and the only thing that was available out of that was mcp34151, which i did buy. But was rather expensive. Was wondering if there are cheaper ones available

[@FoolishEngineer]

IRS2110 is the basic driver IC you can find

[@edwardhughes352]

nice explanation

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@creativeideaseee]

Wow super

[@FoolishEngineer]

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[@metallitech]

Great, thx,

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@rameshwarshelke4633]

Make a such kind of logic ckt 🙏

[@FoolishEngineer]

Yes. next video

[@uzairahmed6765]

Hello .. sir i made SG3525 or ir2110 smps circuit but ir2110 but HO side shows 12v ..but mosfet gate handle maximum 10volts .. can you guide me why HO side show 12v rather than 5volt

[@shiv8144]

Bhai yyr mere system m 2 MOSFETs h aur wo replace karne pe khrab ho rhe h IR2113 IC is used as a gate driver Thoda help kar doge kya ki kya root cause ho sakta h problem ka Because mere ko Itna knowledge nhi h M pcb photo wgera share kar dunga contact number deke aap yes bolo to

[@jeebannayak8449]

For n-channel MOSFET gate driver, you have considered 12V as supply voltage. So Vgs is 16V. If supply voltage will be 30V then Vgs should be 34V??

[@TB-jl9fr]

as a highside switch yes.

[@shiv8144]

Can anyone help me ??? MOSFETs are getting defective again and again in my system’s pcb. IR2113 IC is there to drive the MOSFETs. I will share pcb photo and all details if anyone have good knowledge and ready to help me Someone reply please because system is very critical and it’s a must for us to sort out that MOSFETs problem

[@firdavsmutalipov7479]

Thanks

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@jameskuria1664]

This is a smart Engineer

[@FoolishEngineer]

Foolish is the new smart!!

[@suncrafterspielt9479]

If the key goal of the driver is to quickly turn on and of the mosfet. Why is there a gate resistor limiting the current? Can anyone please explain?

[@Ormaaj]

It's usually a bodge to mitigate the ringing problem alluded to in the video. Ideally a gate resistor isn't required. There are other ways to deal with it.

[@suncrafterspielt9479]

Thanks, could you maybe expand on what other ways are possible?

[@Ormaaj]

@@suncrafterspielt9479 You can clamp the gate signal with a zener, possibly combined with a tank circuit to eat excess current from the top of the wave you've chopped off. If you can keep the inductance low enough you might not need to do anything at all. Really depends on the application and layout and you'll need to run tests and simulations to determine what compensation is needed if any. This video mainly pertains to digital switching of power mosfets which can have quite large CGS > 1 nf.

[@soneralpay7565]

Thanks..

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@user-lv9ju9ed3g]

will there be a video about llc resonator?

[@FoolishEngineer]

Will work on it

[@user-lv9ju9ed3g]

@@FoolishEngineer Thanks

[@unalakdogan9416]

perfect

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@creativeideaseee]

May i know which software using for this circuits

[@DayTradingRezaNiki]

please answer him :D

[@creativeideaseee]

Software name please

[@anuragmahajan5919]

If you're asking about simulations, then it is LTSpice

[@creativeideaseee]

I am asking hou the animation is happening in the video

[@FoolishEngineer]

After effects

[@kumarand2486]

👍🙏

[@ruwanpremashantha428]

Supper

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel

[@irshicosmos3233]

koelie??

[@craigivas4037]

Hello sir. Any chance you can respond to me because I need help with my mosfets in parallel.

[@FoolishEngineer]

please email me

[@shiv8144]

@@FoolishEngineersir email id please I need small help

[@adarshbairwa8035]

Bro aap kis field me work kr rahe ho..I need your help

[@FoolishEngineer]

Please email me your doubt. you can find my email id on my channel

[@adarshbairwa8035]

Sir please check your mail.

[@AspartameBoy]

Please do synchronous rectification of frequencies > 100,000 Hertz

[@FoolishEngineer]

Do you have any reference circuit?

[@rajkumarsaini3840]

Mosfet driver can drive diffrent mosfet

[@carlosmf6954]

🙂

[@slaweksuchy2702]

wat are you're saing i dont understood a word.

[@FoolishEngineer]

same here

[@glenrebello5450]

@@FoolishEngineer 😄

[@kamalswain7728]

Driver ic number pls send

[@user-qo1xs2ro5w]

gggggg

[@Creavids]

Also watch Isolated Gate Driver 3D Video kzbin.info/www/bejne/eWeVhXhtZZV3rac

[@andresmedina1279]

Lol, why did kamala harris make an appearance?

[@williamcampbell9859]

Sick of these accented vids

[@JohnSmith-xn3fr]

horrible English, or whatever it was

[@FoolishEngineer]

This is not a an English class

[@MrArlenBrazill]

@@FoolishEngineer Hilarious reply. Your English is excellent BTW. I guarantee you John Smith speaks one language - at best.

[@user-ki7gj1hi9l]

ОТЛИЧНО

[@HeavyMetalPianoChnl]

That was the best video I’ve seen on the subject. Thank you very much!

[@FoolishEngineer]

Thank you so much for watching!! Please don't forget to subscribe to our channel