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TMS320F280049C: 中断频率的选择

Part Number: TMS320F280049C


我想用280049c做一个图腾柱pfc,输入频率是400hz,电流环计算占空比放在一个中断里面,我想请问一下,对于这个400hz的输入来说,大约中断频率应该选择多少呀,50khz可以吗