techie
Advanced Member level 3
In order to measure the line voltage 220Vac/50Hz with a low accuracy (+/- 2%), I need to peak of the rectified waveform by the ADC of a microcontroller. If I use a low value of filter capacitor, the ripple os too much to give even low accuracy. If I use a high value, the response of voltage drop is toooo low. Any ideas what to do here.