This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Totem pole PFC+LLC 用一个280049C能搞定吗?

Other Parts Discussed in Thread: TIDA-010062, TMS320F280049

Totem pole PFC+LLC 用一个280049C能搞定吗?同步整流是用硬件IC做的, 不需要占用MCU资源,这个能搞定吗?

我看之前TI 的参考设计:1KW 80-Plus Titanium(totem pole pfc+LLC+SR)是用的两个280049C,Design Guide:TIDA-010062

麻烦相关技术人员帮忙分析下,谢谢

  • 你好,抱歉对Totem pole PFC+LLC不太熟悉,方便告知一下一般完成此设计需要哪些芯片资源吗?
  • 在官网页面中有说明:两个控制卡使用 C2000™ Piccolo™ 微控制器来控制两个功率级。

    另外 在 www.ti.com.cn/.../zhcu696b.pdf 中:

    In this design, two TMS320F280049 C2000™Piccolo™ control cards are used respectively for the controller of the PFC stage and LLC stage, and an
    LMG3410 GaN daughter card is used for totem pole half-bridge switching.

    “同步整流是用硬件IC做的, 不需要占用MCU资源,这个能搞定吗?”

    若是您可以自行实现同步整流,应该是可以只使用一个280049的。建议您去英文E2E再次确认一下

    e2e.ti.com/.../c2000-microcontrollers-forum