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71M6543GHT-IGT/F 数据表(PDF) 65 Page - Maxim Integrated Products

部件名 71M6543GHT-IGT/F
功能描述  Energy Meter ICs
PDF  75 Pages
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制造商  MAXIM [Maxim Integrated Products]
网页  https://www.maximintegrated.com/en.html
标志 MAXIM - Maxim Integrated Products

71M6543GHT-IGT/F 数据表(HTML) 65 Page - Maxim Integrated Products

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Maxim Integrated │ 65
71M6543FT/71M6543HT/
71M6543GT/71M6543GHT
Energy Meter ICs
www.maximintegrated.com
Table 15. Power Equations
Table 16. CE Raw Data Access Locations
*Remote interface data.
CE Status and Control
The CESTATUS register (0x80) contains bits that reflect
the status of the signals that are applied to the CE.
CECONFIG (0x20) contains bits that control basic opera-
tion of the compute engine.
The CE code supports registers to establish the sag
threshold and gain for each of the input channels. When
the input RMS voltage level falls below an established
level, a warning is posted to the MPU. This level is called
the sag threshold, and it is set in the SAG_THR register.
Gain for each channel is adjusted in the GAIN_ADJ0
(voltage), GAIN_ADJ1 (current channel A) and GAIN_
ADJ2 (current channel B).
Transfer Variables
After each pass through CE program code, the CE
asserts a XFER_BUSY interrupt. This informs the MPU
that new data is available. It is the responsibility of MPU
code to retrieve the data from the CE in a timely manner.
EQU[2:0]
WATT AND VAR FORMULA
(WSUM/VARSUM)
W0SUM/
VAR0SUM
W1SUM/
VAR1SUM
W2SUM/
VAR2SUM
I0SQ
SUM
I1SQ
SUM
I2SQ
SUM
3
VA x (IA-IB/2) + VC x IC
(2 element 4W 3f Delta)
VA x (IA-IB)/2
—
VC x IC
IA-IB
IB
IC
4
VA x (IA-IB)/2 + VB(IC-IB)/2
(2 element 4W 3f Wye)
VA x (IA-IB)/2
VB x (IC-IB)
—
IA-IB
IC-IB
IC
5
VA x IA+VB x IB + VC x IC
(3 element 4W 3f Wye)
VA x IA
VB x IB
VC x IC
IA
IB
IC
PIN
MUXn_SEL HANDLE
CE RAM LOCATION
DIFF0_E
DIFF0_E
0
1
0
1
IADC0
0
0
0
0
IADC1
1
1
RMT2_E, DIFF2_E
RMT2_E, DIFF2_E
0,0
0,1
1,0
1,1
0,0
0,1
1,0
1,1
IADC2
2
2
-
-
2
2
2*
2*
IADC3
3
3
RMT4_E, DIFF4_E
RMT4_E, DIFF4_E
0,0
0,1
1,0
1,1
0,0
0,1
1,0
1,1
IADC4
4
4
-
-
4
4
4*
4*
IADC5
5
5
RMT6_E, DIFF6_E
RMT6_E, DIFF6_E
0,0
0,1
1,0
1,1
0,0
0,1
1,0
1,1
IADC6
6
6
-
-
6
6
6*
6*
IADC7
7
7
TherearenoconfigurationbitsforVADC8,9,10
VADC8 (VA)
8
8
VADC9 (VB)
9
9
VADC10 (VC)
10
10
CE Flow Diagrams



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