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  • RE: UCC28180: Why recommended value inductance in Power Stage Designer far higher than the calculated inductance?

    Hello William, Seeing no reply in almost 3 weeks, I will close this thread. Regards, Ulrich

  • RE: UCC28180: Regarding the distorted supply side current waveform.

    Hello SMPL Team, Thank you for resending the schematic file. I am glad that nothing has changed (except for the inductance). At this time, I can think of only one possibility for the "DC floor" voltage on ICOMP: I suspect some negative input offset voltage…

  • UCC28180: PFC startup burned

    Part Number: UCC28180 Tool/software: Dear friend, Customer made a PFC demp using UCC28180D. However, during the test, it was found that the PFC power tube and UCC28180D chip are easily burned when the power is turned on. It may burn out once every 30…
    • Answered

  • UCC28180: Transient Response

    Resolved
    Part Number: UCC28180 Hello, we are currently using a PFC-Boost-Controller (Continuous Conduction Mode) from a different manufacturer. This PFC is designed for outputs of up to approx. 400W. However, new requirements require sudden load transients of…
    • Resolved

  • UCC28180: AC-Input Current Curve in PFC circuits

    TI Thinks Resolved
    Part Number: UCC28180 Tool/software: Hello Community For a project we have built a PFC circuit based on UCC28180 with approx. 900W output power and 200Vdc output voltage. The AC input voltage is 90...120Vac. With an AC input voltage of 90Vac and a load…

  • UCC28180: Power Factor Correction coil current irregularity

    Part Number: UCC28180 Tool/software: Using ucc281280 to make a boost circuit for PFC. Input is AC mains(185Vrms-265Vrms) Output is 400V . Power transferred is 2.4KW FSW:150KHz An irregularity was observed in the coil current What can cause this type…

  • UCC28180: selected the right PFC Choke

    TI Thinks Resolved
    Part Number: UCC28180 When dimensioning a PFC circuit based on UCC28180, we will use the excel tool from TI. When calculating the technical parameters of the PFC choke, the maximum peak current IL_PEAK is 17.5A and the boost inductor value LBST is 0.130mH…

  • UCC28180: UCC28180

    TI Thinks Resolved
    Part Number: UCC28180 Other Parts Discussed in Thread: UCC28019A Hi I have used UCC28180 IC for front end PFC operation at 1KW power EV charger I am assigned to reduce to Power rating of 480W and 250W using same circuit. Despite PFC not mandate for less…

  • UCC28180: Regarding boost inductor selection

    TI Thinks Resolved
    Part Number: UCC28180 Hi I am designing a 2.5KW PFC with ucc28180. Vinmin=160 Vinmax= 270 Efficiency expected= 98 Vout= 400V Based on a 40 percent ripple ( Inductor current) I calculated the boost inductor is 156uH. I have the following questions 1) Whether…
    • Answered

  • UCC28180: Outputvoltage 150...200V

    Resolved
    Part Number: UCC28180 For a project with BLDC motor, we need a PFC circuit which has an input voltage range of approx. 90V...130V and a max. output voltage of approx. 150...200V (not yet finalised).The output power should be approx. 800W. We have already…
    • Resolved

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