Maxim Integrated MAX78630+PPM Evaluation Kit - Manual (Page 12)

MAX78630+PPM Evaluation Kit User Manual
12 Rev 0
2.3.3 Neutral Current Measurement Considerations
It is possible, in certain Wye configurations to measure the current in the neutral conductor via a shunt resistor,
therefore replacing the third phase current measurement. This function is enabled by setting jumper J15 to
position 2-3. The MAX78630+PPM EV board then connects the shunt voltage to input AIC of the MAX78630.
IC (J41) is not measured in this case.
V1 V2 V3
Nin
Nout
I1
J39
I2
J40
I3
J41
J5
J4
J3 J2 J1
J
13
J
19
J
42
J
15
J11
MAX78630EVAL V1
J14
J20
J43
CT1
CT2
LOAD
A
B
C
N
A B C N
Figure 4: MAX78630+PPM EV Board Connections