50Hz PWM generation using PIC16F877A

Engineer Hossam "VEGETA" Moghrabi explains how to generate 50Hz PWM signal using PIC16F877A, and why people have hardships doing so, why is it not the straightforward method... and more!

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[garychung]

This is one hell of a video I have never spent so much time watching it. Good tutorial !!!

[ememeable]

God Bless You My Brother l❤
You have simplified my rock science
I just could not get my head around it until you identified and solved all my queries
Sincerely
ejike💞

[skalgotrading]

can you help to learn how spwm signal 50hz for sine wave inverter work perfectly ?

[RiddimDubstep]

I can't seem to wrap my head around where the first interrupt happens. You initialised the CCP1, the Timer1 but I can't see what triggers the first interrupt, like where did you set the value in the CCP to be compared to the tickrate of the Timer1 to trigger the interrupt when Compare = Tickrate.

[gibotos]

thank you very much sir much apreciated video + project!!

[sergioaguinaga]

To generate the interrupt, CCPR1H:CCPR1L needs to be equal to TMR1. You initialize TMR1 to 0, however I didn’t see the CCPR register get initialized. The local variable isn’t the same as the SFR. So idk how that first interrupt is being generated. Perhaps value of CCR1H and CCPR1L are initialized to 0 on start up/reset so it powers up and goes right into the interrupt since 0 equals 0. I can’t think of any other way that first interrupt generates. After that you handle the loading of CCPR1H and CCPR1L appropriately.

[mayconjanoca]

Thanks for tutorial. Muito obrigado pelo tutorial!1

[koyukabus]

thanks for sharing. may you share full code link pls

[wajahatali]

which Software is this?..integrated with MPlab. Please reply ASAP.

[bashiralao]

The code works well and i have generated two pwm signal at ccp1 and ccp2 at 50hz but my problem is that i can't get to off ccp2 for ccp1 and vise versa, so that they wont be working at the same time. Am using it to power my two side mosfets in an inverter. PLS HELP ME

[wajahatali]

One more thing . The clock frequency you used is 20MHz. Is it Exeternal? Please reply

[bashiralao]

How do i use ccp1 and ccp2 having the same frequency

[amruthuramesh]

Sir can I make two pwm pulses from RC1 and RC2 with same frequency but two different Duty Cycles. With this same concept of PWM generation

[ravindratajane]

Sir...
Please make video on software spwm using pic microcontroller 16f72 or 16f877a . Please I'm waiting,

[ravindratajane]

Thank you.
Very helpful...
Dear Sir,
Please make video on spwm using pic microcontroller. I'm face much critical to write a code for sinewave solar power ups using pic microcontroller ie. 16f72 or 16f877a.
Please help me.

[dancemamblita]

i just used the internal oslicator at 500KHz and used normal PWM

[Thundertronics]

can someone donate a good channel poster? make sure it includes vegeta xD