1

Evaluation board/isolated voltage adjustment

In case different isolated voltage values are required, a simple voltage adjustment is possible.

1.1

Positive voltage adjustment

The positive voltage can be adjusted by changing the resistor divider composed of R12 and R13 according to the

following equation:

R13

1.2

Negative voltage adjustment

The negative voltage can be changed by replacing the D3 with a Zener diode suitable to the application

requirements.

1.3

Single isolated output

A single voltage can be provided at the isolated output by removing D3 and replacing C12 with a 0 Ω resistor.

Note:

A fine tuning of the R11 value might be necessary.

STEVAL-A6986IV1

Evaluation board/isolated voltage adjustment

DB4365 - Rev 1

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