Recent content by Urrys

Yes i already mentioned this thread in my first post. There is formula to calculate RMS by using triac angle. But i need to deduce triac angle from this formula. It looks like impossible or hard to simplify this formula to make it like TriacAngle= ...

Creating table this is one of the way. But still I am interested to find formula which can be used to calculate angle, just to find common solution which can be applicable not only for light bulb.

30% of source voltage. Original question was to find out triac angle.

I want to create regulator to make possible set light bulb lighting level in percentage (or in voltage). E.g. Set 30% of lighting, controller should calculate angle and set correct delay to open triac.

Hi, I would like to implement voltage regulator based on microcontroller + triac. I am able to calculate source RMS voltage by sampling signal using ADC, but don't know how to calculate triac angle to set desired RMS voltage. For example i have 250v source RMS voltage and i need to calculate...