MAXQ3181-RAN+ datasheet(44/84 Pages) MAXIM

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Low-Power, Active Energy, Polyphase AFE

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Power Units Conversion Coefficient (PWR_CC) (0x018)

This register contains the value by which the raw power value in each phase is multiplied before being presented to

the virtual power registers. The table below lists the raw power registers and the corresponding virtual registers.

PWR_CC establishes the amount of power represented by one PWR_LSB of the power registers. To avoid significant

conversion loss, PWR_LSB should be chosen such that PWR_CC is > 1000. Calculate the value of PWR_CC accord-

ing to the following formula:

PWR CC

PWR LSB

2 32

Bit:

Name:

Power Units Conversion Coefficient High Byte

Reset:

0x00

Bit:

Name:

Power Units Conversion Coefficient Low Byte

Reset:

0x01

DESCRIPTION

RAW

VIRTUAL

Real power, phase A

A.ACT

PWRP.A

Real power, phase B

B.ACT

PWRP.B

Real power, phase C

C.ACT

PWRP.C

Real power, total

—

PWRP.T

Apparent power, phase A

A.APP

PWRS.A

Apparent power, phase B

B.APP

PWRS.B

Apparent power, phase C

C.APP

PWRS.C

Apparent power, total

—

PWRS.T

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