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采样电阻如何选取，电流测量范围为±15A，输出幅值为3V，该芯片的增益G=50V/V
根据公式R=（V（幅值）/G）/IP，在计算当中负载电流最大值按照15A计算还是30A计算？
您好，按30A计算，正负指的是系统负载的电流方向是sink 还是source 电流，流经分流电阻的两个方向为+-15A，所以最大电流为30A。
