MAXQ3183 Maxim, MAXQ3183 Datasheet - Page 51
![no-image](/images/no-image-200.jpg)
MAXQ3183
Manufacturer Part Number
MAXQ3183
Description
The MAXQ3183 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, power, energy, and many other metering and power-quality parameters of a polyphase load
Manufacturer
Maxim
Datasheet
1.MAXQ3183.pdf
(102 pages)
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The virtual registers are calculated values derived from one or more real registers. They are calculated at the time
they are requested, and thus could involve additional time to return a value. Most virtual registers are 8 bytes in
length and are delivered least significant byte first.
This signed register contains the real instantaneous power delivered into phase A/B/C or total. Power is calculated
from the instantaneous energy measurement according to the following equation:
The register is 8 bytes long, but the most significant 2 bytes are not used. See the PWR_CC register description for
more details.
Note that the sign bit is bit 47 for all 8-byte signed virtual registers.
This signed register contains the reactive instantaneous power delivered into phase A/B/C or total. Power is calculat-
ed from the instantaneous energy measurement according to the following equation:
The register is 8 bytes long, but the most signficant 2 bytes are not used. See the PWR_CC register description for
more details.
Reactive Power, Phase X = A/B/C/T (PWRQ.X) (A: 0x811, B: 0x812, C: 0x814, T: 0x817)
Real Power, Phase X = A/B/C/T (PWRP.X) (A: 0x801, B: 0x802, C: 0x804, T: 0x807)
Low-Power, Multifunction, Polyphase AFE
______________________________________________________________________________________
Byte 7 (MSByte unused)
Byte 7 (MSByte unused)
Byte 5
Byte 3
Byte 1
Byte 5
Byte 3
Byte 1
with Harmonics and Tamper Detect
PWRP X
PWRQ X
.
.
=
=
X ACT
X REA PWR CC
.
.
×
×
PWR CC
NS
NS
_
_
× 2
× 2
16
16
Byte 6 (unused)
Byte 6 (unused)
Byte 0 (LSByte)
Byte 0 (LSByte)
Byte 4
Byte 2
Byte 4
Byte 2
Virtual Registers
Power
51
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