- Joined Oct 19, 2015
hi i'm measuring the main voltage and i'm using a micro internal adc for input signal ! i want to use this circuit to scale down the main voltage with transformer from 312(vmax) to 31.2 and then using the op-amp to scaling down and shifting the ac voltage to move the negative part of signal to positive side and make it suitable for adc. is this circuit ok? is there better options? or other circuits better than this one? i simulated it in mathlab and it is working properly. any suggestion would be appreciated...