Hi,
I'm tired of trying search about this problem, and I didn't find any topic help me,
I made a circuit as in this image with keeping terminal 3 disconnected,

https://www.dropbox.com/s/xoxt8i2sheqcty0/Triac Problem.png

the problem is the lamp is flickering once I put/remove the plug in/from the power socket, as in this video

https://www.dropbox.com/s/xahbzf2li6c5su0/Triac Problem.mp4

I tried with two another triac bt136&bt138, but the same problem occured, any one can help me?

Thank you in advance.

 

Yes that is the Gate terminal , it needs to be tied to MT1 (1) with a 1K resistor to prevent false triggering.

 

Yes that is the Gate terminal , it needs to be tied to MT1 (1) with a 1K resistor to prevent false triggering.

I did that, but same problem

 

Post your circuit then ...

 

Is that an LED bulb?

 

Post your circuit then ...

https://www.dropbox.com/s/dpb0whn2yis8tks/Triac Problem2.png

 

Is that an LED bulb?

the trigger occurs regardless the type of device, I tried to connect Samsung charger that connected to phone, the same problem occurred

 

Hello,

Drawings and photos can be uploaded to the forum directly using the "Upload a File" button.
The pop-up will show you wich file extentions are allowed.

Bertus

 

https://www.dropbox.com/s/dpb0whn2yis8tks/Triac Problem2.png

I don't want to set up a Dropbox account. Can you post the image to this site. Use "upload a file" button below the new post dialog box.

 

I don't want to set up a Dropbox account. Can you post the image to this site. Use "upload a file" button below the new post dialog box.

 

What kind of lamp are we talking about?

I will not look at anything in dropbox because I do not trust the site not to try to steal as much data about me as possible.

 

It doesn't get more detailed or slow than this. Here is everything you need and. More

 

Sorry, I missed the bit about trying other things.
Have you tried an incandescent lamp or other RESISTIVE load? A LED lamp and a charger are electrically similar to each other at the input.

 

Are you sure you have the MT1 and MT2 the correct way?