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TMS320F28P650DK: DF22 Digital Control Library

Mike Allette
Intellectual 335 points
Part Number: TMS320F28P650DK
Other Parts Discussed in Thread: C2000WARE

Tool/software:

Hi,

I'm looking at the Example_DF22.c example. How can I calculate or determine the a1, a2, b0, b1, b2 coefficients for the controller for a DC-DC converter that I'm designing? Are there any resources out there that can help with this? 

  • 0
    TI__Intellectual 2266 points

    Hi Mike,

    Yes, please refer to the DCL's User's guide on the design prinicple of controller/compensators (in this case Direct Form 2 2nd order). In addintion, we provide some utility functions to convert ZPK-strctures into DF22 parameters as well, also documented in the same user's guide.

    The documentation can be found in $(C2000Ware_SDK_directory)\libraries\control\DCL\c28\docs.

    Please let me know if you have any follow-up questions.

    Best,

    Sen Wang