MAXQ3180 Maxim, MAXQ3180 Datasheet - Page 32

• Manufacturer Part Number: MAXQ3180
• Description: The MAXQ3180 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, power, energy, and many other metering and power-quality parameters of a polyphase load
• Manufacturer: Maxim

Low-Power, Multifunction, Polyphase AFE
32
BIT
2:1
______________________________________________________________________________________
0
WIRSYS
APPSEL
NAME
3P4W Wiring (00)
3V3A (10)
1P3W (00)
Selects the mechanism to use for calculating apparent power.
0: S = V
1: S = P
RMS
2
+ Q
x I
2
RMS
Operating Mode Register 2 (OPMODE2) (0x003) (continued)
Apparent power is calculated by multiplying, on a per-DSP cycle basis, the
product of the RMS volts and RMS amps.
Apparent power is calculated by finding the length of the power vector.
FUNCTION
V
V
B
AB
I
I
A
B
I
B
I
B
I
A
V
V
BC
N
I
A
V
V
AN
BN
I
C
I
C
N
V
AC
V