Part Number: DRV8424
向DRV8424的step引脚发送5khz脉冲PWM波,设置电机细分8细分,配置衰减模式为智能调优衰减,在电机A相接入一个10欧电阻测量两端电压来检测电流波形,发现波形脉冲非常的多,占空比也不是设置的50%,请问是什么原因?
波形如下 紫色波形为另一个驱动板产生的电流波形,8424产生的为黄色波形,密集处都是细小的脉冲,是不是因为这个导致电机震动和噪声?
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