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ADE7880 - THD Precision

Question asked by Volta on Jan 2, 2013
Latest reply on Jan 7, 2013 by hmani

Hello all,

 

    I searched the listed posts and didn't see any related information. My question is regarding THD measurements, in the ADE7880.

 

   I see the THD registers ITHD and VTHD are 24 bit signed S3.21 registers, which gives you a max value clamped to 4. Our customer desires higher THD measurements to say, 15. Is there any way to measure any higher THD?

 

  For example, by dividing some number by ten, go through the calculation, then multiply THD by ten, etc...?

 

Thanks.

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