This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DRV8833: 电机信号线是否需要加电容

Part Number: DRV8833


步进电机驱动芯片,比如DRV8833的AOUT1,AOUT2,BOUT1,BOUT2这四个电机信号线,有没有必要每个信号并联一个电容到地,比如并联容值102,22pf等,用来滤除一些杂波,或者优化EMI辐射。

(1)如果没必要,是什么原因?

(2)并联电容,会不会反而坏处?

(3)对于EMI辐射抑制方面,设计上有什么建议。