Hi,
I am trying to estimate the power factor of a 24 V AC system. I am planning on using the A/D channels of an Atmel UC3A0512 microprocessor (EVK1100 board) to sample the AC voltage and current waveforms, then write code on the micro to detect rising edges (and then estimate PF).
If anyone has any advice on circuits that would enable me to measure the AC current waveform for this purpose it would be greatly appreciated. For the AC voltage measurement I am planning on using a transformer (from 24 V ac to ~ 3 V ac) and sampling its output.
Any other advice or suggestions would be greatly appreciated.
Thanks,
Don
I am trying to estimate the power factor of a 24 V AC system. I am planning on using the A/D channels of an Atmel UC3A0512 microprocessor (EVK1100 board) to sample the AC voltage and current waveforms, then write code on the micro to detect rising edges (and then estimate PF).
If anyone has any advice on circuits that would enable me to measure the AC current waveform for this purpose it would be greatly appreciated. For the AC voltage measurement I am planning on using a transformer (from 24 V ac to ~ 3 V ac) and sampling its output.
Any other advice or suggestions would be greatly appreciated.
Thanks,
Don