why get differemt value of FOC's current iab?

itri532600 · ‎2015-12-17

Posted on December 18, 2015 at 04:28

I used stm32 library ADC & DMA to get the FOC Ia,b values, but the values are different at using PMSM library

PWMC_GetPhaseCurrents(oCurrSensor[MC_NUM], &Iab);

I didn't know why have different values.

The values of using ADC library are correct.

How could I debug the error of PMSM library?

Thanks!

Gigi · ‎2016-01-07

Posted on January 07, 2016 at 17:53

Ciao Sapphira

Hard to say why you get different values.

Did you consider the offset calibration done by the MC lib?

Ciao

Gigi