X-NUCLEO-IHM07M1 current sensing calculations

[Kevin Stanley]

Posted on May 20, 2017 at 22:32

Hi, I am using the IHM07M1 motor control board and am have a issue on calculating the phase currents from the on board circuit. From what I can tell is the gain is 1.5583 and the offset is 1.5277V.

Can someone help in verifying these values and on how to convert to amps in the software.

Thanks in advanced

[Enrico Poli]

Posted on May 22, 2017 at 16:44

Hi,

The gain is 1.528 and the offset voltage is 1.56 V.

You can also use the the MC Workbech to calculate it: Power Stage --> Current Sensing --> Calculate button