When using DRV8434A, is there an output of STL_TH in torque counting mode, but I do not observe the output, STL_TH level will be pulled down after starting the motor? At the same time, it is confirmed that STL_REP is pulled down, what is the reason?
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When using DRV8434A, is there an output of STL_TH in torque counting mode, but I do not observe the output, STL_TH level will be pulled down after starting the motor? At the same time, it is confirmed that STL_REP is pulled down, what is the reason?
您好
使用DRV8434A时,在扭矩计数模式下,STL_TH确实应该有输出。如果您在电机启动后没有观察到STL_TH的输出,并且STL_TH的电平被拉低,这通常是由于失速检测功能被触发所导致的。同时,STL_REP被拉低也进一步证实了电机可能处于失速状态。
在扭矩计数模式下,DRV8434A会监测电机的扭矩情况,并在检测到电机失速时通过STL_TH和STL_REP引脚输出相应的信号。STL_TH在失速时会被拉低,以指示电机已经失速。而STL_REP同样也会因失速而被拉低,作为失速检测的一个补充信号。
为了解决这个问题,您可以尝试以下几个步骤: