Hi chung,
What I mean that If I get two different 12x2 transformer,
Then I can build two different power supply. One for the Circuit to power, another for sensing voltage.
Both are completely different supplies no connection in-bitween them...i.e. no GND connection.
What actually the reason is two core transformers are 3 times more expensive here then single core i.e. single winding or center tap(center tap are nothing but a piece of wire connecting the center of the winding).
Since building two supplies is no problem, i would like to go in that path...reason economical.
What I mean that If I get two different 12x2 transformer,
Then I can build two different power supply. One for the Circuit to power, another for sensing voltage.
Both are completely different supplies no connection in-bitween them...i.e. no GND connection.
What actually the reason is two core transformers are 3 times more expensive here then single core i.e. single winding or center tap(center tap are nothing but a piece of wire connecting the center of the winding).
Since building two supplies is no problem, i would like to go in that path...reason economical.