Best sPWM tutorial I have seen so far! Very clear and informative. Thanks. Point to note, on Mega 2560 one needs to change DDR in the variable frequency sketch for PB5 and 6 - i.e. different to Uno. So its DDRB = 0b01100000. Cheers
@meanman1992
8 жыл бұрын
+martyno Cheers, I am aware of that. Did you have a look at the sketches on github or just from what you saw in the video? I'm not sure if I should try and make the sketches suit multiple boards or just leave it with one to stop it sprawling out too much.
@OswaldChisala
8 жыл бұрын
I'm absolutely impressed by the clarity of your explanation of sPWM wave generation. Kudos to you, mate! :)
@meanman1992
8 жыл бұрын
Thank you.
@prasanthchigurupatii
19 күн бұрын
Hi , Thanks for the excellent explanation, similarly excepting for three phase sinePWM.
@94aswin
8 жыл бұрын
I've been searching for this stuff for a few weeks now.... the best explanation that ive come across so far ! Thanks...
@omtandon2741
3 жыл бұрын
same here
@devanshuagarwal38
7 жыл бұрын
Thanks a lot!...I implemented the same logic of SPWM on pic16f72 and its working fine. The detailed tutorial was really helpful.
@AugustineAriola
3 жыл бұрын
Please how did you do that?
@JahanZeb1976
4 жыл бұрын
*Amazing tutorial. You know the subject matter the best.*
@sanupamu
7 жыл бұрын
It's best tutorial in whole KZitem
@rashmiranjannayak3251
4 жыл бұрын
Perfect presentation with deep real world focused. Many many thanks for up loading and for noble intention.
@javasyndicate713
4 жыл бұрын
wowww ,,,, why I just find your vid, this is best presentation- Thank You !!
@meanman1992
4 жыл бұрын
Glad it was helpful!
@ihavecojones
9 ай бұрын
At least 1 year of Electrical Engineering and half a year of master's in electrical engineering condensed into a well composed and well explained 24 minute video. Someone give this man a stool, a camera , a whiteboard and a decent salary as a teacher...because the old farts couldn't explain how water boils to a fucking kettle...
@kbdesignz5808
7 жыл бұрын
Very cool stuff! Thanks for the well presented explanation.
@richardmatjeane9004
7 жыл бұрын
Guy! I love your work!
@Zerofoxthree
5 жыл бұрын
very great tutorial, i learn a lot from here
@tonysfun
7 жыл бұрын
Very nice! I'm now a subscriber!
@ahmedessaffani7059
6 жыл бұрын
very instructive tutorial. Thanks,
@thuyavansathiamurthi3592
Жыл бұрын
You rock my guy
@SudiptaMandalsuri
6 жыл бұрын
amazing.. learnt a lot form this video.. I really appreciate your work
@abdulkadirkucuk8384
6 жыл бұрын
very good effort for spwm generating idea. but you should build a multi channel spwm for full bridges.
@MsMicro2007
6 жыл бұрын
Thanks for such a nice demonstration of SPWM signal generation, can you please tell me what is the value of capacitor used in RC filter
@omergonulal2572
7 жыл бұрын
Thank you for this video.this video very perfect 🖒🖒🖒🖒🖒🖒
@PauloZancoski
4 жыл бұрын
Great video !
@nguyenat1965
3 жыл бұрын
good job !
@omtandon2741
3 жыл бұрын
Me: Spending weeks figuring out the best way to make a perfect SPWM output. Other KZitemrs: Writing this code " int mos_top = 3; int mos_bot = 5; double pot = 0; void setup() { //define the pins as outputs Serial.begin(9600); pinMode(mos_top,OUTPUT); pinMode(mos_bot,OUTPUT); pinMode(pot,INPUT); //Initial value is LOW digitalWrite(mos_top,LOW); digitalWrite(mos_bot,LOW); } void loop() { double pot_val = analogRead(pot)/10; //One is LOW and other is HIGH digitalWrite(mos_top,LOW); digitalWrite(mos_bot,HIGH); delay(pot_val); // 1/16ms = 62.5Hz //One is HIGH and other is LOW digitalWrite(mos_top,HIGH); digitalWrite(mos_bot,LOW); delay(pot_val); Serial.println(pot_val); } " and putting "PURE SINEWAVE INVERTER TUTORIAL " in the thumbnail.
@ThisHandIelsTaken
2 күн бұрын
Thank you !!
@JoshuaHarbangan
6 жыл бұрын
Very nice tutorial sir... I've tried to use your code (SPWM with variable sinusoidal frequency) on my single phase inverter project. But I have one question... Can you explain me how to add a "delay" (about 500 uS) in the transition between OCR1A and OCR1B? Thank you sir...
@allanharper9001
5 жыл бұрын
Well done mate
@sumanjha1951
7 жыл бұрын
awesome ... thanks for great information, can you explain generic spwm code more clear
@franciscoantoniomoralestap4830
5 жыл бұрын
Very good brother, greetings from Mexico ... just one question, pin number 13 that works in the physical application.?
@irwandiusk4808
4 жыл бұрын
Thank you for your code, I have gotten a nice sinusoidal waveform. I will use the wave to drive the speaker and I need a circuit with few transistors to amplify the signal. Could you give me information about the circuit?
@jamest.5001
7 жыл бұрын
this is the most informative video I have found. I am curious . do you or have you made a boost stage for a inverter? or the code for arduino to drive a DC boost. it needs to be self regulating. I found a spwm driver board. to run safety functions. and drive the H bridge. my concern is boosting 12-24v yo about 170+/-, at enough current for a 2500-5000 watt inverter. from your video I think you can solve this issue. if you can. it would be a great help. I know very little a out arduino. and coding thanks
@abhishekprasad3299
7 жыл бұрын
Very good and informative video.It helped a lot. Thanks. Do you have one for three phase?
@abhishekprasad3299
7 жыл бұрын
What changes should be made in the code, can you help please.
@harshsrivastava3066
5 жыл бұрын
How to generate the pwm of 10 kHz in ARDUINO DUE? What changes I will have to do in your code? and how will I get the header file of look up table for the sinusoidal ,triangular and pwm ? also u have used "#include #include " how will Iget the above two ?
@andryxa77
4 жыл бұрын
Hi. Is there any plans to implement this on esp32? Would be much appreciated to see example of working code on esp32 to output spwm pulses.
@ainsworthlynch
8 жыл бұрын
If i have a sqaurewave inverter could I feed the Spwm through an Opamp and feed Fets to modify output signal?
@muhammadbilalmemon271
6 жыл бұрын
sir please let us know the values of capacitor & resistor you used here.
@janpaul5059
7 жыл бұрын
I think that using analogWrite command is simplest to get the same result
@vengug7303
4 жыл бұрын
Hi sir how to change the mosfet switching frequency please
@lovelifeandunity1533
4 жыл бұрын
Hello meanman, can u help me kindly with three phase spwm.. specially the confusing part is to generate 120 degree phase shift with high frequency (40-60khz) range.. I wonder how to manage that with 16bit timers including 8bit.. please guide...
@josepablodelgado1230
5 жыл бұрын
if i want to make a little inverter (low power and for 10 DC Volts) with that code, i only put the outputs 13 and 10 to H bridge with mosfet or IGBTS?
@milanmakwana3883
4 жыл бұрын
Nice away some can you make video for three phase spwm 120 apart from each other
@vipinchoudhary2787
5 жыл бұрын
please tell ,how to calculate the value for sine table....
@wallaceobey651
4 жыл бұрын
Thanks for this!. Also I saw your code on github and I've been trying to add a dead band/dead time to it. Do you have any tips for this? Thanks again.
@meanman1992
4 жыл бұрын
A few people have asked for dead-band, I should look at adding it. I don't have any specific tips, but if you wanted to put up a WIP pull request we could tackle it together from there?
@PUSSYCATlovesGURGEL
8 жыл бұрын
this PWM tutorial is good t , it's the 1st step to make the inverter 6PWM IGBT to control a AC MOTOR "hi power" thanks , we follow you , ok!
@meanman1992
8 жыл бұрын
+PUSSYCATlovesGURGEL thanks, I hope to continue this series a little further, the next video that I'm editing now shows code which will allow you to vary the frequency, but I also hope to make three phase sPWM code which might be useful to use. 6PWM IGBT sounds like you are planing on using a three phase power bridge right?
@PUSSYCATlovesGURGEL
8 жыл бұрын
+meanman1992 yes friend, I am planning to build an electric car motor is 3 phase AC great power, - yes i'm waiting for your next post and code !!! - I purchased several components of china, I am waiting, in Brazil the delay is too large, because the policy of not buy anything from China, this fact is horrible for whom this projecting electric car - usually a car weighs 1200Kg. - I have not seen any project for Arduino be for the six outputs PWM for drivers to IGBTs, - I still will do my essays, but I'm afraid with the DEAD TIME that will be sent to drivers to IGBTs, - I did not find programming yet, I - I hope that this year I already make a car ride with the AC motor, thanks very much !!
@PUSSYCATlovesGURGEL
8 жыл бұрын
+meanman1992 I am very grateful to you for having helped many people, one day I hope to help the friends who helped me!
@birdemetsohbet9588
4 жыл бұрын
which output is giving pwm to inverter which we are going to implement ? are u using 13 ?
@parthibadnan7262
7 жыл бұрын
nice video. i converted the ino file to hex and ran it on proteus .But the output signal seems to be less than 50 hz and the line period = microMHz*1e6/freq/SinDivisions does not seem to work but if i use period = microMHz*1e6/freq/SinDivisions /8 then i get 50 hz frequency can you tell me why?
@Pedro19123
8 жыл бұрын
Hello my friend. How are you doing? I want to know how much is the capacitance that you used for the low pass filter. THANK YOU SO MUCH. GREAT VIDEO!
@rodstartube
5 жыл бұрын
don't lose you faith, he should still answer
@fernandoyose6680
8 жыл бұрын
thx alot dude
@kingsleyazubuikeabonyi3612
2 жыл бұрын
How can I download your code, and what are the libraries needed Engr. Kurt?
@sanupamu
7 жыл бұрын
Dear sir could you please me one thing instead of H-bridge if I use center tap transformer for out put and used two sets of mosfet for pin 9 and 10, so what will happen?. sine wave can generate or not? or generate some distort wave?
@sanupamu
7 жыл бұрын
Could you please let me one thing. In arduino IDE io.h library are available?. How can I write code in register level as well as arduino function.
@dantosrock43
5 жыл бұрын
hello sir, what is the value RC filter? i tryn 100nf and 50kvr not respon thank u
@matthewbutler71
Жыл бұрын
What oscilloscope is being used here?
@JJ.24.6
6 жыл бұрын
Hi...please tell me that can i check results of these program in the serial plotter??? Please reply..
@karolinamaria915
7 жыл бұрын
hello good night, I'm experimenting with a 3-phase inverter design with arduino nano, put the program that is here on the internet, but the fault that I present is that it rotates like a stepper motor, please please me you can indicate that it may be happening thank you,
@muznashiblifarooqi9977
8 жыл бұрын
Is it possible to add a 90 degree phase shift in the spwm?
@alexwv8871
8 жыл бұрын
Can you help me with my custom game pad? I have some pics of what I'm using if you would like to help. I'd really appreciate it. I don't know how I can wire the button board to my computer
@MegaFer1994
5 жыл бұрын
can you help me, I want the fundamental frequency to be 60 hz thanks
@digitalbeauty5688
6 жыл бұрын
HELLO FRIEND CAN YOU PLEASE TELL ME THAT WHAT ARE THE VALUES OF R & C YOU USED HERE. I WILL BE GLAD IF YOU REPLY. THANKS
@asitbiswas6039
4 жыл бұрын
how can i increase two signal's gap and how can i add feedback loop Please help me sir!!!!
@Jm-my1rd
4 жыл бұрын
can you make another video using pic18f4550 using MPlab compiler for the spwm?
@meanman1992
4 жыл бұрын
Probably not, but you might be able to take these concepts, look at the datasheet and try and implement it yourself. 👍
@noslidemais
Жыл бұрын
@VishnuMenon67
3 жыл бұрын
So if we need for a different switching frequency , we need to change the lookup table right ? Also how to write the lookup table?
@meanman1992
3 жыл бұрын
Have you watched the second part of this video? kzitem.info/news/bejne/lHqgsax6hZGClmU
@Electron6807
4 жыл бұрын
Bro how to generate 3 phase pwm supply
@zainharoon4156
4 жыл бұрын
And sir should we make spwm for sinwave without intrupt
@meanman1992
4 жыл бұрын
I doubt it's possible with this hardware.
@zainharoon4156
4 жыл бұрын
@@meanman1992 ahn so there is no way without intrupt?
@adammohiuddin463
8 жыл бұрын
I want to program variable frequency spwm in my arduino mega 2560, but the catch is that the magnitude of the sine wave is also dependent on the frequency by the equation magnitude= (frequency*4.4 +5.4)/225.4. Is it possible to do so? If yes would you please let me know the changes that must be made in your code for variable frequency spwm? Thank you!
@meanman1992
8 жыл бұрын
check out the new video, the varible frequency spwm code should make it a lot easier for you. kzitem.info/news/bejne/lHqgsax6hZGClmU
@hamzaabbasi6418
7 жыл бұрын
can you please tell me how you have determined the contents of look up matrices
@timm3802
6 жыл бұрын
watch the video!
@giridharan9038
7 жыл бұрын
sir i need about ibgt details using this project
@yannis92preloude
4 жыл бұрын
Hi. Meanman from your code is possible to adjust the output voltage. I have transformer 10v 0 10v input 12 volt with no feed back my AC looks good on scope butt under load i get 207volts. can you help in anyway , thanks Yannis
@meanman1992
4 жыл бұрын
There's a second part to this video where we change the amplitude of the wave, which would lower the voltage, have you seen it? kzitem.info/news/bejne/lHqgsax6hZGClmU
@hassane89n
8 жыл бұрын
Thanks for useful stuff. I am wondering if the amplitude can change? I am using encoder for speed reading when the speed reduce i need to reduce the amplitude for the output pwm. Thanks!
@meanman1992
8 жыл бұрын
I think you have already found my other video where I have some code that allows for amplitude change?
@hassane89n
8 жыл бұрын
Thanks, I found it but my idea is to change the amplitude depends on motor speed. For instance, make the ma=0.8 instead of 1. is that possible? I am considering V/f method for single induction motor
@meanman1992
8 жыл бұрын
I don't know what "ma" stands for, neither do I now what "V/f" is? Variable frequency? the other video covers changing the the amplitude and frequency, not depending on motor speed but you could write a code yourself that builds on mine that does that quiet easily.
@kbdesignz5808
7 жыл бұрын
meanman1992 v/f in motor drive world is voltage/ frequency usually
@zainharoon4156
4 жыл бұрын
Sir i used analogread() command in isr(timero_vect) after that my circuit is short and output is out shape sir kindly how i can use adc in isr(timer0_vect)
@meanman1992
4 жыл бұрын
The interrupt is called very ofter, I'm not sure how long it takes for anologread() to finish, but it's possible that it's simply too slow to be called in the ISR. Why do you want to read it that often?
@zainharoon4156
4 жыл бұрын
@@meanman1992 sir i want control output of sinwave when i used analogread() in loop so my output slowly incresed because intrupt go first after it finish it will go to loop then take adc value their so thats why my output reached slowly so thats the reason thats why i want to use feedback adc in isr(timer0_vect) if you kindly guid me how its possible ?
@meanman1992
4 жыл бұрын
@@zainharoon4156 I still don't understand why you want to read it that often? like what's the motivation. Like I said I think it's probably not possible because of how often the ISR is called. The loop that comes from ISR is very different from the arduino "loop" as the former doesn't wait for everything to finish executing. Since I don't know why you think you need to read that often it's hard for me to say, But I would use a separate loop, not the ISR. and by "slowly increase" I'm guessing you mean increasing the amplitude. So long as you modifying a scale variable that the isr uses to calculate the output, then you will not need analog read to run every time in the isr.
@zainharoon4156
4 жыл бұрын
@@meanman1992 sir i want to increase or decrease the amplitude of sinwave frequently but my amplitude of sinwave don t increase frequently so i want make frequently how can i make it frequently sorry if i can t tell you my whole thing if you kindly give me your email i will sent you my code
@meanman1992
4 жыл бұрын
@@zainharoon4156 Sorry mate, I can't review code.
@xierxu
3 жыл бұрын
Where can I learn how to do all this from scratch?
@meanman1992
3 жыл бұрын
Don't think I can answer that completely. But learning C/C++ programing, and being involved in the adruino community is a good place to start. They might be able to answer the question better. forum.arduino.cc/
@xierxu
3 жыл бұрын
@@meanman1992 Could you recommend books and a proven circuit to program and utilize the Atmega chip? I think the Atmel is Atmega?
@0rchimaru
7 жыл бұрын
May I know how do you calculate the lookup table?
@har2191
6 жыл бұрын
Hi sr. Nice video,mmmmm.... please, can you tell me how make it for 60Hz?
@timm3802
6 жыл бұрын
watch the video!
@tiagonet8794
8 жыл бұрын
for 60Hz have any modification?
@meanman1992
8 жыл бұрын
5th line static int freq = 60; // Sinusoidal frequency
@meanman1992
8 жыл бұрын
Also this kzitem.info/news/bejne/lHqgsax6hZGClmU
@pacocable
7 жыл бұрын
please can you say me the value capacitor, resistor and trimmer? thank you very much.i don´t speak english very well
@erenyeage1995
7 жыл бұрын
hey can some body help me here. I'm new in arduino. So i want to ask that why the ground pins of arduino were not used ?
@RNA0ROGER
7 жыл бұрын
They share the same ground.
@mangeshdoifode1470
7 жыл бұрын
hiiii.nice explaination.can i get ur email id please.as their is some important issues that i want to share with you related to my project.
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