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ADE7880 Production
The ADE7880 is high accuracy, 3-phase electrical energy measurement IC with serial interfaces and three flexible pulse outputs. The ADE7880 device incorporates...
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ADE7880 on Analog.com

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Steps to read IRMS, VRMS from ADE7880

Kartheek

on Dec 6, 2023

Category: Software

Product Number: ADE7880

Hi,

I use ADE7880 to read checksum register using SPI protocol. Now i want to read XIRMS, XVRMS (X=A, B, C) registers. May i know the steps or which registers to configure before reading XIRMS, XVRMS registers.

Thanks & Regards,

Kartheek

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0 dave.smith

on Dec 6, 2023 10:36 AM
You should only need to set the psm0 and 1 to the correct values(see datasheet) and write the run bit. Now you can read the rms registers.

for a quick conversion apply known voltages and currents. Do not exceed 353.5mv RMS to either adc at a gain of 1

VRMS/lsb = know_voltage / rms register

IRMS /lsb = known_current / rms register

Dave
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0 dave.smith

on Dec 6, 2023 10:36 AM
You should only need to set the psm0 and 1 to the correct values(see datasheet) and write the run bit. Now you can read the rms registers.

for a quick conversion apply known voltages and currents. Do not exceed 353.5mv RMS to either adc at a gain of 1

VRMS/lsb = know_voltage / rms register

IRMS /lsb = known_current / rms register

Dave
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Up 0 Down

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Steps to read IRMS, VRMS from ADE7880