MAXQ3180-RAN+ datasheet(91/101 Pages) MAXIM

91 / 101 page

Low-Power, Multifunction, Polyphase AFE

______________________________________________________________________________________

Energy, Fundamental, Reactive Negative, Phase X = A/B/C (X.ERFNEG)

(A: 0x208, B: 0x2F4, C: 0x3E0)

On every DSP cycle, the contents of the X.REAF register are tested, and, if negative, absolute values are added to

this register. When this register overflows, the RNFOV bit in the X.EFOVER register is set.

Energy Fundamental, Apparent, Phase X = A/B/C (X.ESF)

(A: 0x20C, B: 0x2F8, C: 0x3E4)

On every DSP cycle, the contents of the X.ESF register are added to this register. When this register overflows, the

SFOV bit in the X.EFOVER register is set. When the MAXQ3180 is operating in low-power mode, energy is not accu-

mulated. However, during low-power mode, current values are accumulated to this register, making this register

accumulate ampere-hours.

Bit:

Name:

Reactive Energy Byte 3

Bit:

Name:

Reactive Energy Byte 2

Bit:

Name:

Reactive Energy Byte 1

Bit:

Name:

Reactive Energy Byte 0

Bit:

Name:

Apparent Energy Byte 3

Bit:

Name:

Apparent Energy Byte 2

Bit:

Name:

Apparent Energy Byte 1

Bit:

Name:

Apparent Energy Byte 0

MAXQ3180-RAN+ データシート(PDF) 91 Page - Maxim Integrated Products

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