Is there a circuit using Triac and capacitor in series to control the speed of ceiling fan? There is a circuit using SSR but I wish to use Triac as SSR are bit costly.
Just for clarity the picture of the speed regulator is attached.
I have tried the circuit below. It works fine with one Triac wired but when both Triacs are wired and triggered one at a time, the Triacs fails randomly. Later it was traced that MT1 terminals of both Triacs are connected to LOAD which is a 60W incandescent bulb. So when a Triac conducts the MT1 and MT2 terminals of the other Triac also gets supply while no gate current is given. I think this cause the Triac to fail. Is this correct?
Is there a way to solve this.