Hi Suyash,

Yes now I understand your predicament. The method which I had the code for is OK for pure sine. The moment the waveform is distorted then the problem starts. And if it is corrupted by Thyristor firing then I dont think anything short of DSP can help.

Yes Kai, I am happy you remember that interaction that we had - that particular job was for a student project and those guys+gals came out with flying colours on the project! ( Just one more case to prove that the current academics in my place is so far removed from real life !)

Raghu