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Three shunt resistor Current sensing

VINODC
Associate

Hi,
While I'm creating custom inverter board for 3 Phase BLDC motor Rail application. I had configured all motor related parameter, while Current sensing section, I have chosen Three Shunt Raw Currents Differential External Gain.

I'm getting this error.

VINODC_0-1754994175714.png

Pin connection Details:

VINODC_1-1754994370083.png

MCU Part No: STM32G4A1VET6
Motor 3 Phase BLDC Details Part No: BG65x50 dcore
Nominal voltage: 48VDC. 

Nominal Current: 3.75A.

Nominal Speed:- 3560rpm.

Regards
Vinod C

1 REPLY 1
GMA
ST Employee

Hello @VINODC,

If your custom description file includes ThreeShunt_RawCurrents_Differential_InternalGain description, the workbench indicates that this topology is not available. Since your purpose is to use the External Gain topology, generate the project and review the "Pins Usage & Hw Changes" tabs in the workbench.

If you agree with the answer, please accept it by clicking on 'Accept as solution'.
Best regards.
GMA