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MCP39F521 датащи(PDF) 23 Page - Microchip Technology

номер детали MCP39F521
подробное описание детали  I2C Power Monitor with Calculation and Energy Accumulation
PDF  52 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP39F521 датащи(HTML) 23 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS20005442A-page 23
MCP39F521
FIGURE 5-2:
RMS Current and Voltage Calculation Signal Flow.
5.5
Power and Energy
The MCP39F521 offers signed power numbers for
active and reactive power, import and export registers
for active energy, and four-quadrant reactive power
measurement. For this device, import power or energy
is considered positive (power or energy being
consumed by the load), and export power or energy is
considered negative (power or energy being delivered
by the load). The following figure represents the
measurements obtained by the MCP39F521.
FIGURE 5-3:
The Power Circle and Triangle (S = Apparent, P = Active, Q = Reactive).
OffsetCurrentRMS:s32
X
CurrentRMS:u32
+
+
Range:b32
X
÷2RANGE
VoltageRMS:u16
X
ApparentPower:u32
i
v
ACCU
0
2N-1
÷ 2N
ACCU
0
2N
-1
÷ 2N
GainCurrentRMS:u16
X
X
GainVoltageRMS:u16
÷2RANGE
P
S
Q
Quadrant I
Quadrant II
Quadrant IV
Quadrant III
Import Active Power
Export Active Power
Import Reactive Power
Import Reactive Power
Export Reactive Power
Consume, Inductive
Consume, Capacitive
Generate, Inductive
Generate, Capacitive
-P, +Q
+P, +Q
+P, -Q
-P, -Q



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