Cirrus Logic CDB5490U - Manual (Page 14)

CDB5490U
14 DS923DB5
1.6.3 Rogowski Coil Power Meter Example
Rogowski coil power meter can be easily connected to the CDB5490U evaluation board. Figure 8 shows
the voltage and current connections for the Rogowski sensor and its associated filter configurations.
For more information, see AN365: Using the CS5480/84/90 Energy Measurement IC with Rogowski Coil
Current Sensors.
IIN-
IIN+
GND
GND
GND
LINE
CS
5490
CDB5490U
PH
AS
E
NEU
TRA
L
J1
J4
J7
J8
J11
J6
R5
1K
C5
0.033UF
C6
0.033UF
C9
0.027UF
C4
0.027UF
R11
NO POP
R1
100
R2
100
R7 1K
R6 1K
R9
NO POP
R13
NO POP
R8 422K R12 422K R14 422K R15 422K
R49 1K
R50 1K
C34
0.033UF
C35
0.033UF
J44
J46
R51
0
J45
J53
J54
IIN+
IIN-
VIN-
VIN+
Figure 8. Rogowski Coil Power Meter