Using triac as AC power line switch

[XaviPacheco]

Hi,

I attach a circuit where I pretend to control the AC input to a bridge rectifier. I usually see that triacs are used in AC switching and phase control applications such as motor speed and temperature modulation controls, lighting controls, and static switching relays. In this case I just want to control the moment when the bridge is going to be fed. The Triac that I will use is 1-3 quadrant triac. I've seen 4 quadrant triacs, but not so common.  Do you think that it could work the way I have arranged the circuit?

[james_s]

It looks reasonable. It's certainly not unheard of to use a triac based SSR to control the power of something.

[Yansi]

You know... you have just invented a SSR. 

//EDIT: And btw, you circuit lacks inrush current limiting. Add at least a suitable NTC in series with the input.