Calculation of the motor current using the Motor Control SDK function MC_GetPhaseCurrentAmplitudeMotor1()

[TKlei.5]

Hello,

i want to use the function MC_GetPhaseCurrentAmplitudeMotor1() from the Motor Control SDK to get the true current of the motor.

I used the following formula to calculate the current, but I didn't get the proper value.

uint16_t IS16A = MC_GetPhaseCurrentAmplitudeMotor1();

float current = ( IS16 A * VDD ) / ( 65536 * RSHUNT * AMPLIFICATION_GAIN );

where

VDD is 3.3 V

RSHUNT is 0.01

and AMPLIFICATION_GAIN is 12.6

[Laurent Ca...]

Dear TKlei.5

Do you have still this problem to solve?

Best regards

Laurent Ca...

[TKlei.5]

Yes.

[Laurent Ca...]

Dear @TKlei.5​ 

Could you give more details to the STM32 Community about the material you use (HW and SW, tools and versions, board(s), motor(s) and so on)?

Best regards

Laurent Ca...

[Laurent Ca...]

Dear @TKlei.5​ 

Any news?

Best regards

Laurent Ca...

[Laurent Ca...]

Dear @TKlei.5​ 

As you do not answer, I guess you don't have to solve this problem anymore, therefore I consider this thread closed.

If not, feel free to reopen it by posting a new answer.

Best regards

Laurent Ca...

[Fkadr.1]

Hi i am having same problem

I am using evspin32f0602 single shut board

I want to display motor amp but I am not able to get the value​

[Laurent Ca...]

Dear @Fkadr.1​ 

This is a fairly old (and closed) post.

If you encounter the same issue, please open a new question referring to this post,

otherwise the community will not see your question as it appears here.

Best regards

Laurent Ca...