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CS5480 데이터시트(PDF) 66 Page - Cirrus Logic

부품명 CS5480
상세설명  Three Channel Energy Measurement IC
PDF  70 Pages
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제조업체  CIRRUS [Cirrus Logic]
홈페이지  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS5480 데이터시트(HTML) 66 Page - Cirrus Logic

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CS5480
66
DS980F3
8. BASIC APPLICATION CIRCUITS
Figure 27 shows the CS5480 configured to measure
power in a single-phase, 3-wire system with 1 voltage
and 2 currents (1V-2I). Figure 28 shows the CS5480
configured to measure power in a single-phase, 2-wire
system with 1 voltage, 1 line current and 1 neutral
current
(1V-1I-1N).
In
these
diagrams,
current
transformers (CTs) are used to sense the line load
currents, and resistive voltage dividers are used to
sense the line voltage.
CT
CT
5 x 330K
CS5480
27nF
27nF
1K
1K
L1
L2
N
IIN1+
IIN1-
IIN2+
IIN2-
Application
Processor
RESET
RX
TX
GNDA GNDD
DO3
DO1
DO2
VDDA
+3.3V
0.1µF
0.1µF
+3.3V
VDDD
+3.3V
VREF-
VREF+
0.1µF
27nF
27nF
1K
1K
½ R BURDEN
Wh
Varh
4.096MHz
XIN
XOUT
SSEL
Interrupt
½ R BURDEN
½ R BURDEN
½ R BURDEN
MODE
VIN+
VIN-
27nF
27nF
1K
1K
+3.3V
LOA D
LOA D
0.1 µF
10K
+3.3V
CS
1 Voltage and 2 Current
Figure 27. Typical Single-phase 3-Wire Connection



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