Duty cycle, frequency and pulse width--an explanation

[@J_Alrighty]

Thank you so much for this video. You managed to effortlessly simplify something I have struggled with for a long time.

[@ahmadalsenien590]

This is the best and fastest video explaining how they work. Thank you so much

[@MrFernandoBedoya]

What a great video tutorial, Thanks for sharing, I am not an electronic technician but I found the term pwm frequently when dealing with servomotors or some plc outputs.

[@pleaseyourselfsir]

Justin Miller , thank you for taking the time and energy of making this highly educational video ! ... I wish I had seen this 8 months ago ! 👍🏻🇬🇧❤️🍻👏🏻💪🏻😅😂

[@waseemaq]

Great lecture. This is a great service to students learning these concept because these fundamental concept are often taught ambigously which leads to confusion. Thank you very much. Great work !!!. I was learning PWM and it was built on top of thses basics, specially Digital signal but nobody bother to emphasize what is Digital Signal and Analog signal. Cost me countless hours and agony until I stumbled on to this video lecture by Justin.

[@AmmarLegato]

Much love and appreciation, many friends and TEACHERS tried to explain it to me, but none was as perfect as this ..

[@JeffMaigemu]

Thank you for this Justin! Simplest illustration I have come across so far

[@nickayivor8432]

Very KNOWLEDGEABLE Very Helpful video thank you 👍👏 God bless you Justin Miller From Nick Ayivor from London England UK 🇬🇧

[@tonyrink9999]

Awesome video. I've watched a lot of videos where the instructor does a poor job of breaking this down, but you couldn't have made it easier to understand. Thanks!

[@JustinMillerAutomotive]

You're welcome! I'm glad it helped!

[@kylepetersen6520]

I really liked your simple explanation of sample and hold and an A-to-D converter. I think that was just enough information for people who don't understand it and don't wish to. though I think that stuff is cool, and I like going in-depth I know a lot of people don't and they really don't want to go in-depth about it.

[@ishowhalal]

Thank you sir for taking your precious time to explain this lecture to us :)

[@spy8464BB]

The teacher appears when the student is ready. Thank you !

[@robertbrandywine]

Yep, I just googled "What is the difference between duty cycle and pulse width modulation?" and arrived here.

[@smm8519]

Hello Justin, Thanks a lot for a useful session, your method in the explanation was amazing.

[@MsRitchie225]

This was explained so well its really helped me make sense of lab scope automotive data. Thanks very much. As. Was struggling before.

[@AslamKhan-xt1vg]

I just came to know about pulse width modulation, but ended up learning much more, Thank you!

[@haylcron]

This was a huge help. Thanks so much for posting it!

[@sadunnakipoglu9471]

Thank you and appreciate your effort. Greetings to you from Turkey .

[@helloworld8583]

I unsuccessfully struggled with finding some easy explanation of duty cycle on my native Ukrainian/Russian lng and i got fail. But your video so logical and pretty simple explain it. Thank you!

[@issamqalajy5342]

Good and simple explanation , great teacher ,thanks Justin

[@coryduncan6273]

Love the video. I'm trying to teach youngster in the about pulse width. Thank you.

[@jaykent6645]

Brilliant and very well explained, thank you 😊

[@molajat1]

Wow. Very clearly explained. Thanks Justin👍👍👍

[@kylelove927]

Best explanation I've seen thus far.

[@JustinMillerAutomotive]

Thank you.

[@hectorvera7918]

Thanks a lot for you commitment to teach and knowledge. God bless you.

[@nickayivor8432]

PRODIGY Justin Miller Thank you so much for sharing it 👍 Take care and have a great day PRODIGY Justin Miller From Nick Ayivor from London England UK 🇬🇧

[@itsnyst]

Nicely explained Mr. Justin Miller. Thank you

[@zman919]

That explanation was poetry in motion!!! EXCELLENT!!!!

[@DilshanMarasinghe]

AMAZING! Feel more prepared for my test tomorrow now

[@edward_grabczewski]

Thanks. I was struggling a bit to remember what the terms meant when I was playing with a new multimeter!

[@hopi9927]

Great Tutor , Clearly Explained.Thank you !!

[@rdold]

Fantastic explanation, thanks for making this video 👨‍🎓

[@ClaudinneV]

Thank you very much Justin. That was indeed very well explained :)

[@playhows6733]

This is a very well explanation. Thank you very much!!

[@dennismolina2339]

great explanation! Way better than school does it!

[@nickpierpoint4116]

Thank you so much for this video! so clear and easy to understand!

[@JustinMillerAutomotive]

Thank you.

[@SmoothSkySailin]

Thanks so much for posting this incredibly helpful video!

[@juliosantos9289]

Good video sir. Clear and easy to understand!

[@RixtronixLAB]

Nice video, well done, thanks for sharing it with us :)

[@cccccccccccccccccccccccccom]

Thank you for this valuable information.

[@zozo71zozo71]

very good

[@arisioz]

Finally a normal accent explaining engi stuff

[@Electricworld-1]

Excellent teacher, Thank you very much

[@rojielehepburn6065]

AWESOME VIDEO AND EXPLANATION!! 😎👍👍 IM FOLLOWING

[@gordonyoud5975]

Many thanks for such a very simple explanation,

[@jayakarjosephjohnson5662]

Excellent description

[@MrGayguru]

Duty cycle is the same as PWM. No difference almost, just PWM is value of absolute time beetween periods, but DutyC is a ratio in %

[@feistent]

Thank you! Very nice explanation.

[@sabrinaqueipo530]

Thank you SO much. This was incredibly helpful

[@gerrys6265]

Thanks for posting this..very helpful.

[@joeynuggetz]

This was a plain and simple explanation. Any idea what would cause a DC fan that I’m attempting to drive via PWM to not spin at low duty cycles?

[@JustinMillerAutomotive]

Maybe your driver isn't providing enough voltage or current for the fan?

[@ravishankar1972]

That is very useful from chemist point of view. Thank you very much sir. Very very useful video for idiots guide or dummy guide to PWM ?

[@2of238]

thank you , you make it easy to understand.

[@francisdsa6790]

Really great explanation great teacher thanks 💐🙏🙏💐💐💐💐💐💐💐💐💐💐

[@cobralife0417]

Awesome clarification!

[@GaryParkin]

Thank you so much for your video. This is great stuff to know.

[@thipboripatchu8237]

Thank you sir for explanation, this vedio make me to understand.

[@TopLobster9975]

I’m trying to figure out the duty cycle of a thruster (space vehicle). I’ve got all kinds of values for the minimum pulse width, but not a specific time for a cycle. How do I figure that out?

[@vaibhavprabhu04]

Justin you are the best

[@sikati883]

GREAT EXPLANATION :)

[@scottneels2628]

Thanks Justin, Great tutorial. Is there a way to copy an input digital 0-5v squarewave signal and output it exactly, with a variable delay? I've been trying to figure it out on Circuit JS1 using an rc delay but I lose the original signal frequency and amplitude. I've also tried a phase shift but I need it to be variable and can't figure out how to. I've even tried using a half bridge but was only able to recover the amplitude. I'm stuck.

[@HOTRODRICO]

great video.. just a note.. all the audio of this video is coming out of my left earphone.. not sure if it can corrected... thanks

[@ezeinyeccionelectronica]

excellent video. Will there be a circuit for pulse generators for common rail injectors?

[@martinbielke8301]

Nice! Could you say that an analog wave ist continuos and a digital discret? Thank you very much.

[@JustinMillerAutomotive]

Yes. That is correct.

[@aninsidestoryofeveryone2008]

Like your way of Explanation justin

[@deangreenhough3479]

Very very helpful. Appreciated thank you 🏴󠁧󠁢󠁥󠁮󠁧󠁿🙏

[@santhiranraj1241]

Thank you so much for this video

[@pattyluss]

Great video, thank you!

[@kimpaul1937]

you're a great teacher

[@aleXelaMec]

hey, thanks, whats the maximum frequency (effective) that is used? i saw as bissest as 500khz. why not 5mhz for example? what is behind this? thanks

[@bornfe5127]

everytime i had of pulse width my mind went jumped to mm till now thanks

[@Victor-vp7kn]

Thank you for sharing it.

[@anirudh3004]

Thanks For Making this Clear to Me..:D

[@rajakaleja]

Hello. I have an average tig machine. There is no pulse dute settings on my machine rather 'pulse width' setting range 10-90. Is this pulse width setting same as pulse duty? Also there is a function called pulse width/trimming range -5 to +5 can you please tell me what this function is? Thankyou

[@brianlogan4740]

Seriously awesome video thank you!

[@Viper81766]

Very good illustration .

[@Do_Good_Be_Good]

Thank you nice and knowledgeable video

[@dcentral]

Thank you. I was reading every definition of online and still couldn’t grasp the meaning of it at all. Seeing it visually helps understand it well. Also, if duty cycle of an output is 20% vs 50% that means the radio is poor quality and signals don’t get through far or well?

[@JustinMillerAutomotive]

I am not sure that I understand what you are asking.

[@Marthinusjacobus]

I brought several 220 volt, 50 cycle power tools from South Africa which I have been using here in California since 2004. How does the 60 cycles in the USA influence the operation of these tools? I have not notice anything untoward like a rise temperature etc. Thank you.

[@UltraTechMotors]

Thanks for your efforts

[@monicasenese2839]

amazing explanation, thank you so much

[@raviautoscanning]

Good explain. Got it. Thank you.

[@rzxkp7none275]

Thank for explaining time.

[@ahmetozdemir7173]

Is it possible to count a continuously changing duty cycle? For example When counting a frequency, we first turn the analog signal to the square wave. The frequency count of a regular analog signal can be considered regularly with 50% duty cycle. However, the square wave duty cycle is not regular in the count of irregular and mixed analog signals. For example, 50, 55, 43, 20, 70, 30, 3, 43, 20, 70, 30, 3, 21, 17, 35 ....... can be a duty cycle. In this case, can the frequency of an analog signal provided in this case?

[@JustinMillerAutomotive]

I am not sue that I understand your question, but I will try to answer it. Yes, you can have a varying duty cycle. When the duty cycle varies, the frequency is usually unchanging. Your meter will only display an average duty cycle. If you want to take more precise measurements, you will need an oscilloscope like a PicoScope.

[@nolimitsREAL]

ok, i understand how to calculate them, but what i don't understand: So the electrical signal is continous, in 25% on time, what happens with the rest ? what voltage goes to the output ? (0-5V) that it makes running with 25% .... It doesn't heat the pwm ?

[@carslover3509]

Great explanation

[@mechanicandskills7215]

thank you so much...this will be good automotive help with scanners

[@sudhansumtripathy]

Hi Sir, how many PWM signals is required to control one BLDC motor, I am confused if I have a MC and then how to use the PWM to control the angle.

[@reynoldfloresluna8896]

Excelente amigo preg cual es el mejor instrumento d Medicion p medir los pulsos la frecuencia y el ciclo d trabajo porcentaje gracias

[@JustinMillerAutomotive]

PicoScope

[@jeantsang4180]

Hi Justin Miller ,can you design a monophase rectangular generator of 30Hz at 1mS with a carrier frequency of 10khz ? Please let me know .It's important.Thank you.

[@juki35]

very good explanation, you just have been subscribed :D

[@tboneproductions2453]

Thank you sir. Great explanation

[@ceilingwalker1]

Nice explanation! Thank you

[@VahidBehravanVahid-Behravan]

HI There, Very good explanation and testing, thanx! can every PWM be set as positive offset frequency?

[@reynolflores2337]

Gracias amigo por kompartir cual multímetro recomiendas p reparar ECUS tarjetas electrónicas d computadoras d autos y sensoreY fallas electrónicas del automóvil gracias

[@hagebootung]

That made sense. Thank you Sir great video.

[@thamerali9697]

Nice job sir

[@thomasfranklin7973]

Very helpful. Thanks sooo much!

[@frankyv5999]

Very well explained.thank you.

[@avaaranjbar4643]

thank you, it really helped me

[@thetnaingsoe9270]

what does mean DC pulse current ton,toff in spark plasma sintering?

[@119vs155]

Excellent. Thank you