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DRV8353R的哪一个角输出直流母线电压Vdc-bus?

Other Parts Discussed in Thread: DRV8353R, DRV8353

要做一个电机驱动课题,看了官方的28335的PMSM例程里的AD模块需要采集Id,Iq和Vdc-bus三个信号,我们的IPM是自己画的外围电路,芯片用的是DRV8353R,请问Vdc-bus信号要从哪个引脚采集回来啊?