UM0128 - USER MANUAL

9/21

5 - PARAMETERS

The Parameters window allows the user to change some common constants used by the GUI application.

Those constants are hardware dependant:

1

Resistor divider (R1 and R2) at voltage input of STPM01 must be set according to the hardware

specifications;

2

Current gain (Ai) will change according to the PST bits setting while voltage channel gain (Au) is fixed

and cannot be changed;

3

Current sensor sensitivity (Ks/mV/A) must be set according to the particular characteristics of the

current sensor used;

4

Value of calibrators (Kup, Kip, Kis). This value changes according to the calibrators value for voltage

and current channel;

5

Internal reference voltage, to be set according to the datasheet.

Change those constants accordingly, to reflect real state on the STPM01 evaluation board.

Figure 5 : Parameters