SPRADK6 September   2024 TMS320F280039 , TMS320F280039-Q1 , TMS320F280039C , TMS320F280039C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Challenge of Implementing LLC Control in MCU
    1. 2.1 Frequency Changing Requires Multiple PWM Configuration update
    2. 2.2 No Fixed Timing Relationship Between Control and Switching Frequency
  6. 3Corner Cases and Real-Case Challenges
    1. 3.1 Software Workaround
    2. 3.2 CLB-Based Hardware Workaround
  7. 4Summary
  8. 5References

2 Challenge of Implementing LLC Control in MCU

Comparing to traditional power topologies that normally work under fixed switching and ISR frequency. LLC topology becomes more complicated to control by MCU due to the following two aspects.