UM0971 datasheet(21/45 Pages) STMICROELECTRONICS

21 / 45 page

UM0971

Board description

Doc ID 17701 Rev 1

21/45

This means that the maximum instantaneous current amplifiable without distortion is 7.7A

(corresponding to Vout = 5 V). The user can modify the maximum current value by changing

the shunt resistor values.

Note:

The user should bear in mind that in AC and DC configuration the maximum value of op amp

output voltages are different, 3.3 V and 5 V respectively, when the currents on the shunt

resistor assume their allowed maximum values.

2.6.3

Three-shunt current reading configuration

The board can be configured to perform three-shunt current readings, one for each inverter

leg. Table 10 shows the related jumper settings:

2.6.4

Single-shunt current reading configuration

The board can be configured to perform single-shunt current readings. In this configuration,

the sensed current on the Rshunt resistor is the one flowing on the negative DC bus link.

Table 14 shows the related jumper settings:

Table 9.

DC current jumper configuration

Jumper

Position

J10

Not present

J11

Between 2-3

J12

Not present

Table 10.

Three-shunt jumper settings (default)

Jumper

Position

J14

Present

J15

Not present

J16

Not present

J17

Present

Table 11.

Single-shunt jumper settings

Jumper

Position

J14

Not present

J15

Present

J16

Present (default)

J17

Not present

UM0971 Scheda tecnica(PDF) 21 Page - STMicroelectronics

UM0971 Scheda tecnica(HTML) 21 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

Scheda tecnica Scarica

Link URL