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How to control or switch AC supply?

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RETGT

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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??
 

power21.gif

Triac Switching is the best method.
 
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i want to change method like fast switching
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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.
 
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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.
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Hello World,
I want output to be AC not DC

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Triac Switching is the best method.
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Which triac to use sir?
any part number?
 

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.
 
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ok thanks i will try
 

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

BTA 41/600B is 40A @600VAC
 
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i want to control transformer 12V 1Amp output.
 

Square wave just on/off...
 

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