90E32 Datasheet, PDF (14/71 Pages) Integrated Device Technology – Poly-Phase High-Performance Wide-Span Energy Metering IC

90E32
POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Power
Phase-A
Phase-B
Phase-C
ENA ENB ENC
Bi-directional
Energy
accumulator,
Bi-direcrtoiollnoavl ^eErnergy
accumpouslaittiover,/nroelgl ^aover
Energy
positivet/inveeg@ative @
accaucm1cMuuEhlmanztueorlrag@tyor _@
00.0.011CCFF
Ene1rMghyzaccumulator @
1Mhz
(+)0.01
Forward
(-)CC0FF(.(0+-)1)CC00((FF.+.-00))CC1010FF..001aa1BccccaeeuuaacnnmmBcckeeFccwRFrraeeuuogguucnnoallearaayymmkeerrwvcttwdwrrooeuucrraggeearrraullraayysggrdrmttdediioossurreettleeannrrteeorrrggyy
accumulator
A/B/C
Rev[P/Q]chg[A/BC}
ABS or Arithmetic
All-phase
+
sum
Bi-directional Energy
accumulator, roll over
positive/negative @
0.01CF
Energy accumulator
@ 1Mhz
Positive CF
Accumulator
(+)0.01
CF
(-)0.01
CF
Forward
energy register
accumulator
reverse energy
register
accumulator
Negative 0-CF
Accumulator
Rev[P/Q]chgT
CF Gen
Logic
CF pulse
CF[P/Q]RevFlag
Figure-3 Energy Register Operation Diagram
For all-phase-sum total of active, reactive and (arithmetic sum)
apparent energy, the associated power is obtained by summing the
power of the three phases. The accumulation method of all-phase-sum
energy is determined by the EnPC/EnPB/EnPA/ABSEnP/ABSEnQ bits
(b0~b4, MMode0).
Note that the direction of all-phase-sum power and single-phase
power might be different.
Function Description
14
December 9, 2011