STPMC1 ST Microelectronics, STPMC1 Datasheet - Page 43

• Manufacturer Part Number: STPMC1
• Description: Programmable poly-phase energy calculator IC
• Manufacturer: ST Microelectronics

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STPMC1
Table 28.
9.17
phase
R
S
N
T
Equation 9
From these factors a 4 x 4 matrix, shown in
compensation multiplying each phase and neutral current with its row, adding the products
together and subtracting them from the currents.
Mutual current compensation matrix for three-phase systems (SYS < 4)
i
i
i
i
Data records map
There are seven groups of four data records available, each consisting of a parity nibble
(see paragraph
The data records have fixed position of reading. This means that no addressing of records is
necessary. It is up to an application to decide how many records should read out from the
device. If an application sends to device a precharge command (see paragraph
the reading of a group, the internal group pointer is incremented. This way, a faster access
to later groups is possible. Below are shown all the groups, their position within the
sequence of reading, and the name and assembly of data records.
CR
CS
CT
CN
=
=
=
=
i
i
i
i
R
N
S
T
+
+
+
+
i
i
i
i
T
S
S
T
9.17.8
+ i
+ i
+
+
R
-
N
i
i
R
N
R
) and 28-bit data field.
1
CCA
Doc ID 15728 Rev 1
6
8192
CCB
S
-
2
0 :
Table 28
, implements a symmetrical
(
T
-
0.09 %)
Theory of operation
9.20
N
-
) before
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