2018-08-07 04:43 AM
I came across a situation where I have to measure the input to my board and I will be receiving a half sine wave dc voltage. Please help me if any one has a solution or a technique to measure the AC voltage.
2018-08-07 07:20 AM
it depends on your requirement which you didn't articulate.
the dumbest: adc the rectified ac signal and fft the results;
the less dumb: adc the rectified ac signal and picked the highest for its peak value;
the smarter approach: adc the filtered ac signal;
the smartest: put the ac signal through a precision rectifier circuit and adc its output
pick whichever works best for your application.