3 Phase motor interface using triac

[Murugesh_89]

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

 

[FvM]

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

 

[Murugesh_89]

Well thanks FvM.

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

 

[FvM]

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