How to control or switch AC supply?

[RETGT]

Hello,
I can switch on off ac supply with relay but now i want to change method like fast switching as led bulb or halogen any thing motor
please tell any method to do this??

 

[smijesh]

Triac Switching is the best method.

 

[andre_luis]

i want to change method like fast switching

If you do a quick search on the internet, you will see that the alternative for fast switching compared to electromechanical devices is the use of silicon switching components. A more efficient way to achieve a more precise pulse control would be by first rectifying the AC voltage, and then controlling via DC by transistors.

 

[RETGT]

A more efficient way to achieve a more precise pulse control would be by first rectifying the AC voltage, and then controlling via DC by transistors.

Hello World,
I want output to be AC not DC

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Triac Switching is the best method.

Which triac to use sir?
any part number?

 

[andre_luis]

Ok, so your control will need to be synchronized with the phase of the electric mains, namely the zero-cross current. You can search on the Web for the keyword Dimmer. Will find a lot of examples.

 

[RETGT]

ok thanks i will try

 

[smijesh]

BTA 10 is 10A rated triac at 600-800VAC max what is your wsitching current required?

BTA 41/600B is 40A @600VAC

 

[RETGT]

i want to control transformer 12V 1Amp output.

 

[crutschow]

What signal will you use to trigger the Triac?

 

[RETGT]

Square wave just on/off...