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TMS320F280025C: TMS320F280025驱动PFC

? ?
Prodigy 90 points
Part Number: TMS320F280025C

大家好：

请教下280025C，开发服务器电源，目前情况是单独交流供电没问题，工作在PFC模式输出正常，而采用直流供电时，工作输出就是直流供电，没有实现BOOST升压，

想请教下：

1服务器电源要同时兼容输入交流和直流供电，切换供电时要快速响应，如何实现？

 2有没有相关参考资料，服务器电源同时兼容交流和直流两种供电的案例？           

  • 0
    TI__Mastermind 39885 points

    你好，为了更好的解决您的问题，我将咨询相关资深工程师，一旦得到回复会立即回复您。

  • 0 回复 Ben Qin
    Prodigy 90 points

    好的！期待你得回复

  • 0 回复 ? ?
    TI__Mastermind 39885 points

    你好，参考下工程师的回复：

    With AC input it works as a PFC input stage. It boosts the input volt to generate a higher DC bus volt and shapes the input current. This is average current mode control (ACMC) AC/DC boost.

    But for DC input, it will be the same except that the input current control might be dropped and it works just like a volt mode control DC/DC boost. You can also maintain ACMC dc/dc boost with the only difference is that the input current is a DC current and not a sinusoidal current.

    I am not aware of any such ref material. Pls review C2000 DP SDK ref designs. There are multiple PFC designs. One of them might have this option for AC input or DC input