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Current Mode Control Buck Converter

JA Power
Prodigy 110 points

Hello 

I am currently using the F28069 mcu,  Is there any way to implement dead time while utilizing current mode control in a buck converter with a synchronous rectifier?

  • 0
    TI__Genius 10820 points

    Hi,

    Yes it is possible on the 06x devices with some software help as shown in the attached. On the newer (07x, 37x) devices this software support is not required.

    HrishiPCMC_Sync_buck.pdf

  • 0 in reply to Hrishi Nene
    Prodigy 110 points
    Where does the PCMC_Sync_buck document come from? I am having trouble locating it. Also is there any way to achieve this implementation without using interrupts. I am already running a PSFB with PCMC plus four buck converters.


    Thanks in Advance!
  • 0 in reply to JA Power
    TI__Genius 10820 points

    This is a document I put together some years ago to help users implement peak current mode control (PCMC) of synchronous buck/boost power stages. The TMDSHVPSFBKIT provides a good reference of implementing PCMC control for a phase shifted full bridge.

    I understand the need to avoid additional interrupts. On the 2806x devices this additional interrupt will be required. With the newer 2807x and 2837x devices additional interrupt is not required.

    Hrishi