How PWM works | Controlling a DC motor with a homemade circuit

[@memirandawong]

I spent 30 years designing PCB's, beginning with hand taped boards on mylar sheets all the way up to sophisticate auto-routers. Still, It's amazing how far things have come. $2 boards, crazy!

[@jlbleeker]

It’s so enjoyable to finally see an really professional made tutorial. Not only that but also the video is top class. All the kudos to you Sir. Highly recommended.

[@Barryd57]

I assembled my first pwm motor controller using assemblies from Amazon. It worked perfectly and allowed my old VW to have AC w/o fixing the defective computer. Thx!

[@apfelsafteis]

Seeing the representation on the oscilloscope really helped me understand how PWM works. Thanks for the great demonstrations

[@mumin.azraaq]

First time seeing that $30 oscilloscope(Amazon diy oscilloscope) used. Now i'm ordering it. Thanks for using it, and making this video.

[@mayacrafts27]

This video is very beautifully completed. Not only great explanation about PWM, but also how to create fully working circuit as well as smooth ads integration. Bonus that nice flow motion time-lapse 👏

[@genefogarty5395]

From a novice, thank you so much for the tutorial.

[@barneybarney3982]

4:00 for led's we dont use pwm to decrease voltage, same goes for majority of usecases, pwm is mainly use for quick on/off while still having high voltage, just not nonstop, for led or dc motors you need to have high enough voltage to run them at all, so you use time, not voltage to control brightness or speed. Pwm is used for decreasing voltage only for variable voltage output and you need to have inductors and caps on the output, for example VRM for cpu/gpu in pc.

[@TheOfficialDorianelevator]

i have a PWN controller in my house that i use to test DC motors, now i finally know how it works.

[@standforjustice8799]

I learned about pwm from this video and I hardly know anything about electronics. It's thanks to your very good demonstrations. Keep up the work please.

[@MamToCos]

I am not an electronic/electrician guy, but your way of explaining is very good. Thanks for your effort 👌

[@andrewdavies7845]

Thanks for making this video. I was looking for PWM tutorials mainly for sound processing but this was incredibly informative. Also I didn't realise that PCB's were so cheap to buy, I'll be using those a lot more in my circwits. Many thanks buddy

[@dyancatamaran4016]

Good job informing, presenting, explaining and linking with sponsors. Thanks.

[@fomxgorl]

so, i just tested the signal generator on my oscilloscope and measured it against a potentiometer. it doesn't change the duty cycle, but does change the amplitude of the pulses

[@TheMalerdaemon]

0:55 Just for clarification, the simplest circuit is a toss up between an open circuit and short circuit.

[@srjit_]

Beautifully presented and very clearly explained. Thank you for taking the time and effort to create this video.

[@s71402san]

Now that explains why electric multiple unit trains squeak while accelerating or stopping. It's a very primitive VFD. The PWM signal gets sent to the gate/base/control of the switch (transistor), the motor speeds by the average voltage but it in reality is the PWM fluctuations rather than the continuous voltage. Frequencies can be changed for faster speeds or better adjustment.

[@umargul5644]

Sir,you perfectly explained the pwm,thanks a lot.

[@pavankumartidke6906]

Thanks for teaching. Doing electronics is an ART.

[@aminekhelifi837]

You just make the thing enjoy itself. Amazing tutorial! keep this productivity.

[@logandekmarques8412]

I think the analysis in 3:30 is very important. Sometimes you have no option other than use a potenciometer, so sometimes when you work mainly with situations you can't use a PWM, you forget this aspect of the PWM when you have the opportunity to use it 5:16

[@MrArcheopteryx]

Very great teacher, you are, Master of the 555. No joke, I learned why we use Pulse Width Modulation with you here and what uses it has. It cleverly limits sordid power dissipation too! Perfect crash course on the 555. Thanks Master. Thanks a lot.

[@mohamedz4560]

Good because speed of words expelling is easy to understand by even non english mothertong peoples. Well planned explanation and good heading

[@SkibidiWaPaPaPaPa]

Seriously amazing video with a lot of great info. Thank you so much for making this video. I can't wait make this circuit for myself.

[@powegger2]

I like that you showed a website to design and build a pro grade board very nice.

[@rciancia]

Thats a good Cir-QUIT

[@subhamkesh6086]

😂😂😂

[@Ittybittythetwofacedkitty]

Cir cute

[@anhoanghocgioi3140]

Sir quit

[@jasonspink1981]

The first time I was almost sure I heard it wrong…. The 10th time I was like 😣🙇‍♂️

[@jimmymoughnieh5303]

I hear some people say can you borrow me your car? We are after knowledge not mocking

[@sadunnakipoglu9471]

أشكرك وأقدر مجهودك ، تحياتي لك من تركيا .

[@mohanbm9617]

Really a good video, simple to understand and clean. Thank you for this tutorial.

[@mktwatcher]

Very helpful. Would you happen to know what the high and low voltages are on the PWM signals used in Volvos to control the AC Blower Motor? Say in a 2008 XC90 there are 2 small awg conductors that must be used for the PWM signals and there are 2 Heavier Wires each 10 Gauge Red and Black that provide power from hot to chasis ground controlled by the power transistor and PWM Duty Cycle Signals. Most literature still uses the term "Resistor Module' that controls AC fan motor speed but that is just from days of the old technology to control fan speeds. The fan control module must be a power transistor instead that is is controlled by the 2 small conductors Blue & Yellow coming from the climate control module.

[@Abdalrahman_Yahya]

Good job and a nice implementation. I'm gonna to fo Mosfet driver and I want a high frequency typically like 50khertz. Can the Arduino give me these values or I have to implement a timer 555 and deal with resistors and capacitors to have these frequencies

[@typxxilps]

pretty late - but I like the way you chose for the PWM explanation. and I like this oscilloscope which I think I will buy to see these pulses and check things like servos. Was not aware of PWM as servocontrol ... Therefore I will walk through the list of videos on your channel to find more explanations I might need later ... really great work this video to do it 3 times from breadbord to pin board to pcb

[@BharatThakor-bu8pq]

Plz give information of all components used in pwm with its specifications..

[@dalsbury1979]

Excellent video! Very informative, excellent production quality and to the point. Thanks!

[@mohsen8873]

Thank you it was a very good circuit. I have question what's the max voltage and amper ?

[@rohitsayer1400]

The outrun music is perfect.

[@albinsanthosh8697]

the presentation and explanations are very nice and clear, thanks for such an video.

[@WendellSilvaQuaternionsRocks]

Thanks for this inspiring project!

[@pariwalatanishq]

Thanks for the video. Was looking for tutorials on PWM for some projects related to RC cars and in general controlling of Motors using PWM.

[@jamaldaraghmeh7009]

You are talent, and thx for help in PWM Understanding, this practical explanation helps a lot. 🤩🤩

[@UNBEATABLE_GUY]

Sir please can you answer me a simple dc motor can move by using servo tester and MOSFET?😊

[@MRCEMCRASHCourses]

nice work , how can I use PWM to make DC motor ( pump ) produce pulsatile flow to simulate the pulsation of a human for training purposes

[@utt.1384]

how about power consumption effeciency of pwm vs switching buck voltage control for motor speed controller?

[@tonycstech]

This video taught me new words: Mobulation Sirquit Axzilloscope Vinary Viaring Modar

[@Moon1a]

Lmao

[@dharmaraja41]

on the lighter side, certainly funny. But we all have accents, even native born! the way the brits make fun of Americans.. and Indians make fun of the Brits and the Americans.. :)

[@srt4boss1]

I love your channel i learned so ooooo much. I don't hot the like button a lot but i felt compelled to. You are honestly so smart and i look up to you because of videos like this.

[@liamshambrook7588]

nice work on the circwits

[@muhammadzeeshan07]

perfect explanation and excellent work

[@JerryRecords]

This was awesome and engaging! Keep them coming!

[@Danda4inaline]

recommend making a timing drumband with the ESP8266 module for motorbikes, the content will definitely be busy, Good luck with the content👍🙏

[@jboy6944]

Doesn’t the mosfet in the schematic need a pull down resistor to drain gate capacitance? Otherwise the mosfet will be in saturation mode for a long time.

[@longhoang8609]

really hope for other electronic video like this

[@davidperets9997]

look proffesional, still i didn't understand what is pwm controller? is a main component around him circuit was built or an special circuit

[@thomasdingo5191]

Great video keep up the good work. Helped me understand PWM.

[@bryanfoot]

Great and very educative and entertaining.God bless you

[@mmtech9352]

nice, im gonna be using this to control the speed of a motor in a smart incubator i´m building. Thanks!

[@randamoses8594]

Great content, make a video about I2C communication

[@danmak3741]

Hi, is there a wiring diagram of the Arduino that you created near the end , I'm currently running a project , however, I have to show examples of each a mechatronic motor, a plc motor and a pmw, that one you placed at the end is perfect for what I need to do, many thanks, great video 👍

[@Sanaullahalam95]

D1-D3 number mistake I think D3 is Schottky diode and D1,D2 4148

[@saikirantelker9995]

Very optimum and impressive making.

[@Joyplanes]

Thank you very much!

[@ahmeds606]

You deserve more than a like for this great work 👍

[@Joyplanes]

Much appreciated!

[@dewan_lama]

Thank you so much for making such a wonderful informative content. I really appreciate your effort. Keep making such videos.

[@bnnm23]

Really great content with quality and knowledge. Thanks for sharing your knowledge and creativity.

[@thejosiahowens]

Great video. This was extremely helpful!

[@Max-di3gw]

Is there a complete circuit diagram? (from DC in to 12V 4pin PWM FAN connector) Thanks very much.

[@turkishwithemre]

But why we don't use power supply to change the voltage. Because of the amperage that can deliver ?

[@impactodelsurenterprise2440]

Do you lose torque with lower speed as much as you would if you were to use a simple potentiometer to lower the voltage?

[@pedrolotti45]

thank you for the high quality content

[@iamwaiting514]

excellent video, thanks for your time

[@mixme8655]

Thank you sir very well explained so simple but great impact

[@includemylog]

Thanks for your explaning

[@JaykeSapalaran-iq3qs]

Great video information 👍 Thank you for sharing your knowledge ❤🇵🇭

[@zren4585]

very helpful video to explain the concept in a visual way cheers

[@HamedAdefuwa]

i feel that "36 hours of work" per video vibe lol

[@FelixSamulevich]

If transactor can keep such power too long ?

[@unknownerorr2740]

Wow incredible video! Thank you so much for making this!

[@andersjensen3805]

High class video, Thank you 👍

[@anniebrown8821]

Great video! Very informative and easy for a noob like me to comprehend :)

[@marioguy104]

Is there a way you can make the circuit so that instead of using Variable Speed, you use 3 Speeds within the motor instead? For example instead of the potentiometer using the Variable Speed to control the motor using 3 Speeds within the motor shaft instead of customizing it from an Aesthetic Low Speed (very slow) to Full Blast/Super High Speed (very fast).

[@harshbrijesh5412]

What is the purpose of the diode parallel to the motor?

[@Iraqi1995-3]

Question how many volts PWM is allowed to enter only 12 v

[@Good-Enuff-Garage]

half way through the video turns into an infomercial

[@MechanicForGMCCars]

Hello I have unusual question wuld that circuet work with pick up coils found in distributors? I have for days problems finding corect circuet to interupt pick up coils going to ignition module . So any help please? Basicaly I need circuet that can control pick up coils phase shift them or controling pulse generators pulse duration

[@icsmartbot]

Amazing job, amazing teach, amazing video. Thanks to you man.

[@alexvaughnrc5259]

Can a rc receiver send Pwm signal into your circuit to turn on/off led

[@abusaeedashrafi8518]

Sir, My bldc motor phase voltage uvw. How can I bldc motor run with two phase wire

[@charly_rosario]

Hi from Argentina, excellent video, i have a question, can i use this pwm to control volume of alarm siren 12v?

[@giorgioparodihorsky4089]

Awesome way to explain it ....thanks

[@DIYGarage_SoCal]

Great job on the animations!

[@TheParivel]

Do you have a board design 110 V BLDC motor that has around 500 watts power ?

[@naturalmilkhoneyandzenretr9508]

Can u make a diy pemf for me please with a transistor pwm function generator

[@antonioluperini5684]

Very professional video. Good job!

[@creatures96]

How do you choosw the PWM frequency?

[@rogermallery3691]

Can I use that board to control amperage on another brushless motor controller

[@ishandhanotia6214]

that was too good explanation and showed it so easily

[@josedmendozaresendiz3439]

Excellent video!

[@MrAce-rs6ju]

Very good video "keep them coming"

[@BharatThakor-bu8pq]

I understand working of pwm but not understand which component use in green colour

[@brandonbaer2372]

Can I use a relay rather than a transistor?

[@Rhine23singh]

if you change the cap to a higher range will it my output more choppy (like spin stop spin stop ).... basically need a choppy effect when the POT is turned down then when the pot is turned up it should speed up and smoothen out .Is it possible ?

[@indianinstituteofrobotics2230]

how do you create these animations. I'll really appreciate if you can share this.

[@bhooshanvijay326]

I don't understand why you used MOSFET while making a Cir-quit with arduino, can't we use a BJT Update: I saw the difference between a mosfet and a bjt. So you can contol the output current with the variable input voltage in a mofet, while in a bjt, you can control the output current using the variable input current. You can generate pwm output in an arduino which will deliver variable input voltage for mosfet and in turn the mosfet will control the current output to the motor or the bulb. Please correct me if I am wrong. I have a doubt: how do you increase the brightness of the led with the current output of the mosfet, I thought increasing the voltage does that.