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.

DRV8307无法调速,工作于最大转速和0速两种情况

Other Parts Discussed in Thread: DRV8307

DRV8307在控制电机时,电机能够转,但是输入的PWM调速无效,只要有效值大于一个阈值,转速立马变为最大转速,测了下上管门级对地电压,无PWM斩波,始终为最大波形。补充说明:板子参考8307EVM板设计,采用555定时器作为PWM输入,PWM输入的频率约为3Khz。

请问有没有哪位技术支持碰到过这样的情况