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BOOSTXL-DRV8305EVM坏掉了,怎么申请售后?

Other Parts Discussed in Thread: LAUNCHXL-F28027F, DRV8305

我从TI网站买的BOOSTXL-DRV8305EVM,现在坏掉了,如何申请售后。

控制板是LAUNCHXL-F28027F,刷入lab02c做电机辨识。

控制板和DRV8305板子组装好,接上电机(电机好的),上电(4S锂电池)。

CCS9.3,可以进入调试模式,开始辨识,DRV8305上面的nFAULT指示灯点亮,红灯亮。

DRV8305板子输出端不接电机时,AB相之间电阻是66K左右,BC相之间电阻是66K左右,AC相之间电阻是132K左右,

是不是功率管坏掉了?或者取样电阻坏掉了?