71M6533 Datasheet, PDF (106/132 Pages) Teridian Semiconductor Corporation – Energy Meter IC

71M6533/G/H and 71M6534/H Data Sheet
WA
WB
WC
VARA
VARB
VARC
SUM
Σ
Σ
PRE_SAMPS
IA
IB
IC
VA
VB
VC
F0
SQUARE
I²
V²
IASQ
IBSQ
ICSQ
VASQ
VBSQ
VCSQ
SUM
Σ
Σ
FDS_6533_6534_004
WASUM_X
WBSUM_X
WCSUM_X
VARASUM_X
VARBSUM_X
VARCSUM_X
MPU
SUM_CYCLES=60 &
PRE_SAMPS = 42
IASQSUM_X
IBSQSUM_X
ICSQSUM_X
VASQSUM_X
VBSQSUM_X
VCSQSUM_X
F0
Figure 47: CE Data Flow: Squaring and Summation Stages
106
Rev 2