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TMS320F280049: 关于有感方波的端电压杂波问题

Part Number: TMS320F280049

dear TI support:

 帮忙看看图中问题,诊断一下问题的方向,感谢感谢!

(1)在三个hall中断里换相

(2)PWM配置图片

      

(3)端电压图片

(4)在占空比比较小比如为8%的时候,端电压看起来是正常的