3.1. Custom Configurations

The UID permits users to design and implement their own control circuitry to control or monitor the power supply’s inputs or outputs. As shown in Fig. 3.1 and Fig. 3.2, the UID has a general purpose area on its printed circuit board to configure custom circuitry or to provide interconnections to utilize connector JR4.

3.1.1. Connector Pad Interface

Table 3.1 shows the interface of master and slave connectors JR1 through JR3 with the corresponding pad areas of JX1 and JX2. Connectors JR2 and JR3 are interconnected to allow daisy chain connections for multiple UID units.

Table 3.1 Connection interface for JR1, JR2, and JR3

JR1, JR2, JR3 Pin

JX1, JX2 Pad

Signal

1

1

REF GND

2

3

REF GND

3

5

VREF EXT

4

7

TVREF EXT

5

9

VO2

6

11

+2.5V REF CAL

7

13

GND

8

15

POWER

9

17

THERMAL

10

19

INTERLOCK

11

21

CUR CTL

12

23

STANDBY/ALM

13

25

ALM

14

27

EXT CTL

15

29

FUSE

16

31

ISO

17

33

START

18

35

CLEAR

19

37

STOP

20

2

REF GND

21

4

+10V REF

22

6

IREF EXT

23

8

TIREF EXT

24

10

IO2

25

12

VMOD

26

14

+5V

27

16

PGM LINE

28

18

STANDBY

29

20

PHASE LOSS

30

22

VOLT CTL

31

24

CONTROL

32

26

OCT

33

28

INT CTL

34

30

OVT

35

32

ISI

36

34

ARM

37

36

INTERLOCK SET

3.1.2. User Terminal Connector (JR4)

JR4 is a 10-terminal connector that mates to a screw terminal plug. This connector is user defined and can be utilized to externally monitor or control power supply functions. Table 3.2 shows the interface of connector JR4 and the corresponding pad area, JX3. For example, connecting a wire from terminal 1 of JX3 (USER1) to terminal 15 of JX1 provides a signal to indicate the master power supply is operational.

Table 3.2 Connection interface for JR4

JR4 Terminal

JX3 Pad

Description

1

1

USER1

2

2

USER2

3

3

USER3

4

4

USER4

5

5

USER5

6

6

USER6

7

7

USER7

8

8

USER8

9

9

USER9

10

10

USER10

3.1.3. Multipurpose Area

The multipurpose area in the center of the printed circuit board enables the user to add circuitry within the UID. The multipurpose area provides sufficient space to add components like or’ing diodes for simultaneously monitoring two diagnostic signals. One example is to connect the anodes of two diodes to the OCT and OVT alarm signals and interconnect the cathodes. This provides a diagnostic signal on either the OCT or OVT alarm signal.

_images/pcb_uid46.svg

Fig. 3.1 Printed circuit board layout of the UID46 and UID47

_images/pcb_uid53.svg

Fig. 3.2 Printed circuit board layout of the UID53