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ADE7880 - Questions on phase angle measurement

Question asked by karens on Oct 30, 2014
Latest reply on Oct 20, 2016 by luck

Hello,

 

I have some questions on phase angle measurement:

 

1. Should I read angle register when the phase voltage zero crossing event occurred? Or it doesn't matter.

2. Upon the data sheet, for the angle register, 1 LSB presents 3.90625 us. It is independent from the line voltage frequency, is it righ?

3. Can I change the ANGLESEL bits setting dynamically (any time) during the operation? Or must reset the ADE7880 chip after the change? If I could, is there any settling time after the change?

 

Thank you very much for the help.

 

Karen

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