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MAXQ3181-RAN+ Datasheet(PDF) 79 Page - Maxim Integrated Products

Part # MAXQ3181-RAN+
Description  Low-Power, Active Energy, Polyphase AFE
PDF  84 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAXQ3181-RAN+ Datasheet(HTML) 79 Page - Maxim Integrated Products

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Low-Power, Active Energy, Polyphase AFE
______________________________________________________________________________________
79
Energy Accumulated in the Last DSP Cycle
Real Energy, Phase X = A/B/C (X.ACT) (A: 0x1D0, B: 0x2BC, C: 0x3A8)
This signed register provides the raw real energy accumulated over the most recent DSP cycle. For each ADC sam-
ple period, the real instantaneous power calculated from the instantaneous voltage and current is accumulated. At
the end of each DSP cycle, the result of the accumulation over the DSP cycle is copied to this register and is accu-
mulated in X.EAPOS or X.EANEG, depending on the sign of the accumulated energy.
LSB of the energy registers is VFS x IFS x tFR/216.
Apparent Energy, Phase X = A/B/C (X.APP) (A: 0x1D8, B: 0x2C4, C: 0x3B0)
This signed register provides the raw apparent energy accumulated over the most recent DSP cycle.
Bit:
31
30
29
28
27
26
25
24
Name:
Real Energy Byte 3
Bit:
23
22
21
20
19
18
17
16
Name:
Real Energy Byte 2
Bit:
15
14
13
12
11
10
9
8
Name:
Real Energy Byte 1
Bit:
7
6
5
4
3
2
1
0
Name:
Real Energy Byte 0
Bit:
31
30
29
28
27
26
25
24
Name:
Apparent Energy Byte 3
Bit:
23
22
21
20
19
18
17
16
Name:
Apparent Energy Byte 2
Bit:
15
14
13
12
11
10
9
8
Name:
Apparent Energy Byte 1
Bit:
7
6
5
4
3
2
1
0
Name:
Apparent Energy Byte 0



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