3 Phase Angle Control

[pramodsinha]

Hi All,

Anyone have any experience of using just one pic for 3 phase phase angle firing. I know i need to detect the zero crossing points, sort out what order the phases are in, and then fire the appropriate thyristor (six thyristors in all). I am using 50Hz at the minute but will need it to work on 60Hz too, auto detecting frequency is even better
It all seems a little daunting at the moment, but i know it can be done.
Thank you in anticipation

Kind regards

Bob

Dear bob
i am also trying to do the same thing but unable to do in software.
If you need any theoritical explanation i can help but trying to do in pbp not succeeded till now
thanks
pramod