3 Phase motor interface using triac

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Murugesh_89

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Hi,

I would like to run a three phase motor using triac. Also i want to do using a single pin from the microcontroller ic.

I have attached the circuit as per my opinion.


I am new to this 3 phase motor control and all.

Please tell me whether this circuit is correct or not?

Also Please give your suggestion for the same.

Thanks,
Murugesh
 

There's no way to avoid three separate opto triacs. The present circuit will end up in a nice explosion.
 

Well thanks FvM.

I redesigned and attached here. Kindly give your comments for this new one.

 
Maximum specified trigger current for 3021 is 15 mA. Resistors should be corrected respectively.
 
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