Hello everyone,
I have a simple question the current sensing of the evaluation board DRV8312 EVM.
From the sheet 1/6 of the schematics from Control Suite, I am not sure to understand why the resistor R48 is 57.6K instead of 28.7K like R49,R55 and R54.
The voltage bias of IA, IB, IC is 1.65V but for I Total it is 1.33V unless mistakes.
In the example project BLDC sensored, In the comment of the source code, it says "DCbus_current = _IQ15toIQ((AdcResult.ADCRESULT7<<3)-IDC_offset)<<1; //1.65V offset added on DRV8312 board. " but I think this is incorrect, right ?
Thanks for your help,