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  • UCC28711: UCC28711

    Part Number: UCC28711 Other Parts Discussed in Thread: UCC28740 Tool/software: Hello! I would like to ask a question regarding SMPS. I have implemented a Wide Input Voltage SMPS using the UCC82711, making it possible to operate with input voltages…
    • Answered

  • UCC28711: UCC28711

    Resolved
    Part Number: UCC28711 Tool/software: 1.These are two PWM ICs from TI. 2.The 3844 series has output voltage and output current specified in the datasheet. The block diagram also indicates the output voltage. The output current is correlated with the…
    • Resolved
    • Answered

  • UCC28711: ucc28711

    Resolved
    Part Number: UCC28711 Other Parts Discussed in Thread: UCC27714 Tool/software: I would like to assume driving two MOSFETs in series without a pulse transformer using a single PWM IC (UCC28711). In this case, if the parasitic components of the PCB…
    • Resolved
    • Answered

  • UCC28711: UCC28711:

    Resolved
    Part Number: UCC28711 Tool/software: This is an excerpt from the UCC28711 datasheet. The image implies that once the average output current reaches the regulation reference, the controller transitions to frequency modulation mode to regulate the…
    • Resolved

  • UCC28711: UCC28711

    Part Number: UCC28711 Tool/software: Hello! I am currently building an SMPS using TI's design guide as a reference. 400- to 690-V AC Input 50-W Flyback Isolated Power Supply Reference Design for Motor Drives. I have one question. The guide uses a ZD…
    • Answered

  • UCC28711: UCC28711

    Resolved
    Part Number: UCC28711 Tool/software: Hello! I have created an SMPS based on the document "400- to 690-V AC Input 50-W Flyback Isolated Power Supply Reference Design for Motor Drives." The schematic is as follows, and the PCB layout was done in the…
    • Resolved

  • UCC28711: ucc28711

    Part Number: UCC28711 Tool/software: Hi, I am Having issue with the controller that the output is going to some protection but as soon as i turn off AC input, after i second like that the output comes before discharging to zero. I am getting Square…

  • UCC28711: UCC28711

    Part Number: UCC28711 Other Parts Discussed in Thread: UCC28730 , TIDA-00173 Tool/software: Hello, I designed the SMPS according to the guide, 400- to 690-V AC Input 50-W Flyback Isolated Power Supply Reference Design for Motor Drives, and it is working…
    • Answered

  • UCC28711: UCC28711

    Resolved
    Part Number: UCC28711 Tool/software: Hi, When I turn on the device with full load condition (1.5A) the unit is going to some kind of protection but when I turn on the device without load than output is perfect even after loading full load (1.5A),…
    • Resolved

  • UCC28711: UCC28711:

    Part Number: UCC28711 Tool/software: Hello! I am currently experimenting with an SMPS based on the "400- to 690-V AC Input 50-W Flyback Isolated Power Supply Reference Design for Motor Drives." Contrary to the guide…

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