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DRV8301-69M-KIT: The way to realize the cumulative sum of the hardware bus voltage

Part Number: DRV8301-69M-KIT

Dear team:

My customer asked:

The above picture is the part of the development board's schematic diagram that collects the bus current. The network at the input end is the input of the ABC phase current corresponding to the three sampling resistors (the signal end of the sampling resistor under each bridge arm).

May I ask how to realize the total current of the DC terminal of the acquisition bus?

Chinese original:



Best regards,