Three phase power supply circuit for three phase power meter
Hi,
can anyone suggest me a simple power supply circuit for three phase energy meter. the meter must be able to operate from any single phase when other phases are off.
I want to measure three phase voltages through a micro-controller, i need 12V/2Amp input supply to my motherboard. i have decided to give the power supply from any one of the incoming three phases, say 'R-phase". whenever R-phase goes off, a intermediate circuit should transfer the power supply to other phase. so, my controller always stays ON.