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  • CCS/TIDA-00778: one shunt DC bus current sensing for TIDA-00778

    TI Thinks Resolved
    Part Number: TIDA-00778 Other Parts Discussed in Thread: MOTORWARE Tool/software: Code Composer Studio Hi, Recently I found a TI DESIGNS called TIDA-00778 is very useful for my design, especially the single-bus current sampling method used to reconstruct…
    • Answered

  • TIDA-00778: Anti aliasing filter selecting

    Resolved
    Part Number: TIDA-00778 Hello, In TIDA-00778 design, we can see a anti aliasing filter with cutoff frequency of 15 MHz. The picture below shows this filter: Also, the following picture shows the ADC input impedance model for TMS32028027F. So…
    • Resolved
    • Answered

  • TIDA-00778: Suppy Current for gate driver

    Resolved
    Part Number: TIDA-00778 Other Parts Discussed in Thread: TIDA-00472 , UCC27714 , TIDA-00364 , TIDA-00173 Dear TI Experts: When we design an external power supply for the gate driver, we need to determine the maximum current output of the power supply…
    • Resolved
    • Answered

  • TIDA-00778: change IGBT to NMOSFETs in parallel

    Resolved
    Part Number: TIDA-00778 Other Parts Discussed in Thread: UCC27714 , TIDA-00364 , UCC27211 , TIDA-00472 , UCC27712-Q1 Dear TI Experts: I have a targeted application (rated 3KW, Vbus=86V for a 3 phase PMSM control ). I found TIDA-00778 is a powerful design…
    • Resolved
    • Answered

  • RE: LAUNCHXL-F280049C: Cogging rotor no speed control SDK Lab05

    Resolved
    Oddly TI kits using IGBT module ,GAN, NEXFET versus 1/2 bridge UCC27714 (TIDA-00778) seem to have floating charge pump integration over HO boot strap cycles. Perhaps IGBT module (TIDA-00778) simply has reverse voltage leakage (E->C) keeping boot charge…
    • Answered

  • RE: EK-TM4C1294XL: External GPIO pull downs on PWM pins

    Resolved
    Since your questions are around the design of the TIDA-00778, which uses a TMS320F28027 processor, I will transfer this thread to that group.
    • Answered

  • RE: TIDA-00875: Suggestions for High Voltage Single Phase BLDC control

    Resolved
    Dear Mamadou: Thanks for suggesting TIDA-00778, whose hardware design seems wonderful! The TIDA-00778 uses an integrated 3 phase inverter bridge SK30GD066ET. For my target application: Single Phase BLDC with AC230V input and rated 330W, how…
    • Answered

  • UCC27714: LO overshoots 20VDD

    Resolved
    Part Number: UCC27714 Other Parts Discussed in Thread: TIDA-00778 , Having configured UCC from TIDA-00778 it is clear Cboot 1000n was causing HO to produce PW >50us, open loop pulses. Likewise choice of VDD bias cap (10000n) UCC datasheet recommends 10x…
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    • Answered

  • UCC27714: Input pull down

    Resolved
    Part Number: UCC27714 Other Parts Discussed in Thread: TIDA-00778 Why would it be necessary to add external pull down resistors on GPIO pins when the gate driver inputs have 400k pull downs? Do parallel external pull downs (10k/100k) change SNR of the…
    • Resolved

  • RE: I need to design single phase 180VDC (2kW) PMDC motor speed control driver

    Hello Maynard, Thank you for checking with us. I assume you refer to a single-phase brushed PMDC motor and not a single-phase brushless DC motor? We don’t have an integrated solution for >60V brushed DC motors and I’ll list below what we have. For…

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