SWAY033A december   2020  – december 2020 F29H850TU , F29H859TU-Q1 , LMG3410R050 , TMS320F280025 , TMS320F280025-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F28377D , TMS320F28377D-Q1 , TMS320F28377S , TMS320F28377S-Q1 , TMS320F28384D-Q1 , TMS320F28384S-Q1 , TMS320F28386D-Q1 , TMS320F28386S-Q1 , TMS320F28388D , TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1

 

  1.   1
  2.   Overview
  3.   3
  4.   At a glance
  5.   Totem-pole PFC and CLLLC topology for onboard chargers
  6.   Peak current mode control for high-voltage to low-voltage DC/DC converters
  7.   Scalable portfolio of real-time MCUs for onboard chargers
  8.   Conclusion
  9.   Additional resources
  10.   References

At a glance

This paper discusses common control challenges of onboard chargers and high-voltage to low-voltage DC/DC converters, and the benefits of C2000™ real-time MCUs in these subsystems.

1 Totem-pole PFC and CLLLC topology for onboard chargers
A totem-pole bridgeless PFC improves efficiency by lowering the number of power devices in the current path, while enabling bidirectional operation. The CLLLC isolated DC/DC converter provides a soft-switching capability to enable a higher switching frequency and smaller magnetics size.
2 Peak current mode control for high-voltage to low-voltage DC/DC converters
The analog integration on a C2000 real-time microcontroller enables peak current mode with control loops fully in hardware.
3 Scalable portfolio of real-time MCUs for onboard chargers
C2000 real-time MCUs offer a scalable portfolio to address the variety of integration needs and discrete options in on-board charger systems.