i want use LED MR16 Dimmable lamps to replace the MR16 Halogen dimmable lamps, but i don't know whether i should change anything of the circuit?
Who can help me?

 

Hello,

Can you provide some details about the lamps and dimming circuit?
Datasheets would be great.

Greetings,
Bertus

 

A lot of ground was covered in this other thread.

http://forum.allaboutcircuits.com/showthread.php?t=23611

Use this thread to ask your question, this thread belongs to you alone. I'm referring you to the other thread as a reference.

The other poster had a lot of Q&A sessions, he wasn't too happy with some of the answers.

The short answer is it is unlikely you will be able to get satisfactory results using the built in dimmer. I could be wrong, but LEDs are not light bulbs. The way they light up when current is varied is very nonlinear. There is a technique called PWM that will vary a LED linearly, but it is totally different than the way typical dimmers work.

I would assume the manufacturer matched everything else though, so the LED version should be a drop in replacement.

Best advice is try it and see, if it doesn't work, then we'll be glad to work with you to make it right.

 

And another discussion on a different forum (where the problem was solved):

http://www.electronic-circuits-diagrams.com/forum/viewtopic.php?t=3787&highlight=