TMS320F280039: LLCePWM驱动死区时间为什么值是一样的?

Part Number: TMS320F280039
Other Parts Discussed in Thread: TIDA-010062

TI的专家您好!

最近在学习TIDA-010062中LLC的源程序,看到函数LLC_updateDeadband在根据次级输出电流的不同范围值来设置ePWM的死区时间时,FED和RED在每个电流值范围都是一样的,请问是什么原因?这是要让用户根据情况自己设置吗?

截图如下,麻烦解答下,谢谢了!

  • 您好

    已经收到了您的案例,调查需要些时间,感谢您的耐心等待

  • This part is used to change the deadtime based on load current at the beginning, it can reduce the deadtime at heavy load to optimize the efficiency.
    You can change these values based on your hardware. It seems this function is abandoned during version updates.
  • 您好!如果是按照目前TIDA-010062的设计(1000W功率输出),根据不同的负载电流,能给个各个负载电流情况下的参考死区设置值吗?因为根据 的回复,在版本升级时这个功能已经丢弃了,我不确定在原来的版本里这个功能能不能去掉。谢谢!

  • This need be coordinated with the hardware. 

    At the beginning, when I am using Si MOSFET on the LLC primary, it is 50@range0, 45@range1, 40@range2, 35@range3, 30@range4, 25@range5.

  • Thank you very much!