SPRADF4 December   2023 TMS320F280023C , TMS320F280025C , TMS320F280025C-Q1 , TMS320F280037C , TMS320F280037C-Q1 , TMS320F280039C , TMS320F280039C-Q1 , TMS320F280049C , TMS320F280049C-Q1 , TMS320F28377D , TMS320F28377D-EP , TMS320F28377D-Q1 , TMS320F28377S , TMS320F28377S-Q1 , TMS320F28379D , TMS320F28379D-Q1 , TMS320F28379S , TMS320F28P650DK

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Basic CLB Implementation
  6. 3Turn-On Delay Configurations
  7. 4Turn-Off Delay Configurations
  8. 5Different Options to Turn On or Turn Off SR PWM
    1. 5.1 Software Control Method
    2. 5.2 Hardware-Based Scheme
  9. 6How to Adjust the SR PWM Clamping Time
  10. 7Summary
  11. 8References

5 Different Options to Turn On or Turn Off SR PWM

The SR PWM is generated without extra software with the above CLB configurations. However, turning off the SR PWM to meet system requirements is sometimes required in the actual application. For example, turning off the SR PWM during the light load condition is a common practice for reducing switching loss, and some applications only turn on the SR PWM once the LLC completes the soft start process. Two methods for turning off the SR PWM are discussed in this section: software control and a purely hardware-based scheme with CLB.