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Calculate VRMSOS in ADE7753

Question asked by on Jun 20, 2013
Latest reply on Jun 21, 2013 by mkaiserm
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We need to calculate VRMS value using ADE7753. Without VRMS calibration, We will get 0x76FF as VRMS offset value on no Input condition.

For calculating VRMSOS, V1 = 250mV = 0x1184B2 (VRMS Register Value) & V2 = 25mV = 0x01D82D

So, VRMSOS = 157783.91 = 0x26857.

VRMSOS register is 12 bit & offset value is 20-bit.

How to use CH2OS register.

Any help in this regard will be appreciated.