Maxim-integrated MAX78630+PPM Evaluation Kit Instrukcja Użytkownika Pobierz pdf (Strona 8)

MAX78630+PPM Evaluation Kit User Manual

8 Rev 0

2.2 Powering the EV Kit Board

The MAX78630+PPM EV board is normally powered through the USB port (J21).If power needs to be supplied

from a different source, a 5V DC can be applied to the connector J16; see

Table 16 for the pin assignment.

When the MAX78630+PPM EV board is powered through via USB, the same cable also provides the

communications link between the host PC and the MAX78630+PPM EV board.

2.3 Basic Connection Setup

This section shows examples of basic connections between the MAX78630+PPM EV board and external

equipment. Additional connection examples can be seen in the MAX78630+PPM IC data sheet. Note that this

board does not directly support voltage transformers (VT) and provides a shunt resistor as alternative to the

current transformer on phase C.

The following examples are only a subset of all possible measurement configurations. Refer to the

MAX78630+PPM IC data sheet for configurations and system connection diagrams.

2.3.1 Wye-Connected or 3V Delta-Connected Three-Phase Systems

For Wye-connected systems, all three-phase (Line-to-Neutral) voltages are measured. The Neutral line is the

reference for all voltages (V3P3A). Jumper J11 must be in position 2-3 (3V Wye/Delta). It is also possible to

directly measure all three voltages in a Delta configuration. In that case, the Neutral is not accessible and the

MAX78630+PPM EV board is at a virtual center potential.

V1V2

Nin

Nout

J39

J40

J41

J3 J2 J1

J13

J19

J42

J15

J11

MAX78630EVAL V1

J14

J20

J43

CT1

CT2

CT3

LOAD

Neutral Connection for Wye Configurations

Figure 2: MAX78630+PPM EV Board Connections

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 31 32

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