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  • RE: TMS320F28377S: Using SFRA Without SFRA GUI Integration

    Resolved
    Hello Manish, I made the SFRA work. I have made one big mistake: the background task was running faster than the PWM update ISR. Thank you again for your help!

  • LM5170EVM-BIDIR: Software frequency response analyzer (SFRA) for LM5170EVM-BIDIR

    Part Number: LM5170EVM-BIDIR Other Parts Discussed in Thread: SFRA Hello, I am currently working with LM5170EVM. I would like to receive loop gain information to design compensator for boost operation of LM5170EVM. Can I use SFRA for measuring open loop…
    • Answered

  • RE: TMS320F280049: How to determinate plant transfer function using Mag and Phase data from SFRA?

    Resolved
    Casper, we provide compensation designer for this, it will generate the coefficients needed. You can run the compensation designer from C:\ti\c2000\C2000Ware_DigitalPower_SDK_3_03_00_00\libraries\sfra\gui

  • TIDA-010062: Current loop can't adjust to stable using SFRA

    TI Thinks Resolved
    Part Number: TIDA-010062 Other Parts Discussed in Thread: TEST , SFRA Hi, We build one self demo board based on TIDA-010062, most of items are same as original design. Only inductor change to 0.13mH. SW frequency of 100k. In lab3, when doing compensation…
    • Answered

  • TMS320F280025C: Adjust SCI baud rate for SFRA

    Resolved
    Part Number: TMS320F280025C Other Parts Discussed in Thread: SFRA Dear Champs, I am asking this for our customer. The user wants to change (speed up or slow down) the SCI baud for SFRA. Can they just change #define SFRA_GUI_SCI_BAUDRATE 57600 in "sfra_gui_scicomms_driverlib…
    • Resolved
    • Answered

  • TMS320F28379D: Can SFRA run on CPU2?

    Resolved
    Part Number: TMS320F28379D Other Parts Discussed in Thread: SFRA , , C2000WARE Hi, We were able to run the SFRA library on the CPU1 of TMS320F28379D, now we want to run the library on CPU2, for that, I removed the library changes from CPU1 and did the same…
    • Resolved

  • SFRA: How to draw the bode diagram in plant mode

    TI Thinks Resolved
    Part Number: SFRA Dear team: My client has realized the bode diagram drawing of the loop he designed with SFRA. Now he wants to use SFRA to draw the bode diagram in plant mode, and then tunning the parameters. How do I set up the software? The converter…

  • TIDM-02002: Measure SFRA Plant for Voltage Loop

    Part Number: TIDM-02002 Other Parts Discussed in Thread: SFRA , TEST , SFRA Open Loop Plot for the Closed Voltage Loop, Sec to Prim Power Flow (Test condition：Vprim 400 V, Vsec 320V, Power 1 kW, Fsw 500 kHz) I made a PCB according to the design of tidm-…
    • Answered

  • TIDM-HV-1PH-DCAC: Grid connected mode: Using SFRA with grid connected mode to extract plant model and more

    Resolved
    Part Number: TIDM-HV-1PH-DCAC Other Parts Discussed in Thread: SFRA , TEST HI all 1. Can you please explain how SFRA can be used in the grid connected mode to extract the bode plot and plant transfer function. Project documentation doesn't provide how SFRA…
    • Resolved

  • TMS320F280049C: SFRA GUI and Compensation Designer GUI

    TI Thinks Resolved
    Part Number: TMS320F280049C Other Parts Discussed in Thread: LAUNCHXL-F280049C , BOOSTXL-BUCKCONV , SFRA , POWERSUITE , C2000WARE Hi, I connected the LAUNCHXL-F280049C to a custom buck converter instead of the BOOSTXL-BUCKCONV board I followed the instructions…

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