I've been around electronics for a lot of time but I really didn't understand how capacitors work in an AC or DC circuits.
I know capacitor has a big role in smoothing the output of bridge rectifier. As the ripples go through the capacitor and the capacitor works as a tank that is filled upto the maximum voltage of the ripple signal and when the ripple falls to lower voltage, the capacitor is holding that max voltage and delivers it to the output, waiting for the next max ripple signal. And that's how capacitor smooth ripple voltage.
But in this circuit that have a TRIAC to be triggered with a DIAC and complete the circuit and the heater works. There's C1 I think it's a ceramic cap or something other than an electrolytic capacitor. And it works as an open circuit, so there's no current flowing through it. But my question is what its job? I learned something that in an AC circuit that has an inductive load, capacitor is very useful in bringing up the lagging voltage to a good level with the current.
Is it the job for this capacitor in this circuit?
Also what's the job of C2 & C3 ?