SPRADJ1A June   2024  – August 2024 TMS320F280021 , TMS320F280023 , TMS320F280023C , TMS320F280025 , TMS320F280025C , TMS320F280033 , TMS320F280034 , TMS320F280037 , TMS320F280037C , TMS320F280039 , TMS320F280039C , TMS320F280041 , TMS320F280041C , TMS320F280045 , TMS320F280049 , TMS320F280049C , TMS320F28075 , TMS320F28076 , TMS320F28374D , TMS320F28374S , TMS320F28375D , TMS320F28375S , TMS320F28376D , TMS320F28376S , TMS320F28377D , TMS320F28377S , TMS320F28378D , TMS320F28378S , TMS320F28379D , TMS320F28379S , TMS320F28P550SJ , TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2HHC LLC Control Architecture and Logic Diagram
    1. 2.1 CMPSS
    2. 2.2 EPWM
    3. 2.3 Configurable Logic Block (CLB)
  6. 3C2000 Configurations in HHC LLC
    1. 3.1 CMPSS Configurations
    2. 3.2 EPWM Configurations
    3. 3.3 CLB Configurations
  7. 4System Control Method
    1. 4.1 Soft Start
    2. 4.2 Burst Mode Control
    3. 4.3 Minimum and Maximum Frequency Clamping
  8. 5Resonant Capacitor Voltage Sensing Design
  9. 6Summary
  10. 7References
  11. 8Revision History

Abstract

To address the challenge of traditional voltage mode control for LLC to meet the high load transient response requirements, HHC (hybrid hysteretic control) scheme was proposed to achieve the best-in-class transient performance with the analog controller. This application note discusses the key implementation details on how to design the HHC LLC with C2000, from the software and hardware perspective.