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Great Video, thank you. Theme music reminds me of 'six feet under' - great show.

Thanks for your explanation - Wim Netherlands

Huge thanks for the clear n detailed explains... U just gained me as an additional subscriber... Luv yr presentation... Thou there r thousands others vids/channels by other bright indian individuals, i hated most of them for... 1. Not stating the contents were in hindi while the title itself was written in english. Some did states the content was in hindi but the word hindi was placed all the way back in the title thus hiding it from a glance until the titles were clicked n expended or worse yet way later after its been dloaded (for later viewing due to time constrain; 2. Clear n detailed yet simen ple contents. Every steps were clearly explained (helps novice like me a lots). Can be improves but good enough for me and reminded me of another great channel by mr ben eater which presented his steps in detailed n simple even for highly complex proj; Thus, please keep it up my brother... The values (of teaching n knowledge) u passed here will keep-on growing and passed to others, earnings u and others a like tons of good blesses.... Thank you again, Huzzir frm Malaysia;

Brother, very nice. Great explanation. Thank you.

excellent approach I like it very much

excellent sir ,keep it up,very informative

سؤال لو سمحت لو أننا قللنا الجهد على بوابة triac بتخفيض جهد الديود الضوئي الموجود بالقائد هنا سوف تتشوه الموجة وتنقص أم ينخفض جهد الموجة فقط

thank's for this video 😊

Nice video

very nice explained! subscribed!

Love you yaar

I have in this circuit in my hand 3 optocouplers next to other and there is 1 white wire and 4 green wires that seem to feed it and the circuit seem to feed a mercury light bulb that consumes 90 Volts. What those wires mean that I should supply them with because the bulb is not coming on and is not connected or going through other areas of circuits. The 5 I guess do hook up to get its signals from the main control board. But I figure the main control just send current to them so I can do the same. It is just that I have not seen anywhere on the interent 3 optocouplers next to each 4 legs each.

Good Explanation. Can I use PC817 instead of MOC3021

Hot wire from 220v should be in MT2 of triac or it can be neutral ? Thank you nice video

Any limitations on the current AC output load? For example, running Industrila LEDs?

I tried to use a 470 ohm resistor and it worked, but there was a voltage leak when I used a 220 volt LED lamp. does the 470 ohm resistor affect the performance? Would a resistor above 470 ohms or 560 ohms be better?

Can I switch 400v ac with this circuit?

If we use a single phase ac fan what will be the value of the resistances used between the optocoupler and triac?

Big Thanks.. ok? hehe

Sir how did you calculated the value of resistance in the circuit....

how about PWM? can be applied?

Sir fir the air conditioner triac circuit is used for motor control, so I got a complaint of motor running direct, i removed optocoupler, changed triac still motor running direct, what can be the fault? Please advise.

what should I add to control a motor?

Sir can we use 560ohm resistor 0.25w? or 0.50w. Which one we use for reduce price

Can we connect diac with PWM ?

can it work on dc load? smtyms relay does not reset

Sir, I saw your video, It is very helpful. I have subscribed it. But I want to know that , How can I amp set particularly value. If amp rise more then set value motor supply must be cut off.

whats the purpose of the 560 ohm

We can use 1k or 220 ohm resistor instead of 560 ohm resistor ?

Will it work with 3.3v ?

Where is your next video for controlling brightness?

I have a question can a breadboard handel 220v ac voltage ?

Why my circuit didnt work, if possible the triac is broke ? Because am not conected the push buton but my lamp is life

this can to dimmer sir?

Can 817 opto coupler work?

Hi I Like your Videos I want to build the AC dimmer as AC ON-OFF switch Can I use the same circuit with the ESP8266 Node MCU ]WIth ESP8266 Node MCU to enable PWM on a certain pin, use analogWrite(pin, value); where the pin is the digital pin, and value a number between 0 and 1023] Use case : 1. When I set 0 value to the digital pin by analogWrite bulb should turn OFF. 2. When I set 512 value to the digital pin by analogWrite bulb should set to brightness 50%. 3. When I set 1023 value to the digital pin by analogWrite bulb should set to brightness 100%. I have a doubt : Arduino NANO gives an output voltage of 5Volt but ESP8266 nodeMCU gives 3.3 Volt. will this works please replay to me I am learning a lot from your Videos. Part : MOC3021 and BT136

Can you please share this on protious by make an 3d diagram so I can take print please please

It didn't worked for me