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TMS320F280049C: tida-00961

Part Number: TMS320F280049C

我在对这个套件进行,电压开环,电流闭环的实验时,设置了输入60Vac,频率为60hz

在拨上输入开关后,随后主电路有响声,经过我检查发现继电器G5Q-1A4-DC12V,损坏

如图所示,具体表现为引脚2烧毁。

请问,这个时候我驱动还未产生,输入仅为60vac,不知道为什么会烧毁?特地过来请问一下相关的工程师,帮忙分析一下,谢谢!!