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Showing 130 results View by: Thread Post Sort by
  • UCC28711: UCC28711

    seungpyo kang
    seungpyo kang
    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 ranging…
    • 2 months ago
    • Power management
    • Power management forum
  • Answered
  • UCC28711: ucc28711

    seungpyo kang
    seungpyo kang
    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 and…
    • Resolved
    • 4 months ago
    • Power management
    • Power management forum
  • UCC28711: 3 phase / single phase input to DC converter design

    RAVINDRAN PALANI
    RAVINDRAN PALANI
    TI Thinks Resolved
    Part Number: UCC28711 Other Parts Discussed in Thread: PMP10344 , UCC256302 Tool/software: Hi , We are looking for the AC to DC rectifier design for the below specification for our new product development, Input voltage: 3phase voltage 110/220/230/240…
    • 1 month ago
    • Power management
    • Power management forum
  • Answered
  • UCC28711: UCC28711

    seungpyo kang
    seungpyo kang
    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
    • 5 months ago
    • Power management
    • Power management forum
  • Answered
  • UCC28711: UCC28711:

    seungpyo kang
    seungpyo kang
    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 output…
    • Resolved
    • 6 months ago
    • Power management
    • Power management forum
  • RE: UCC28711: UCC28711

    Mike O'
    Mike O'
    Hello, Please see mhy comments below. For Cg, should I use the input capacitance of the MOSFET? If Cg is note speficied they will give you Qg. C = Qg/Vg In the provided guide, the STD2N95K5 MOSFET was used, which has an input capacitance of 105pF…
    • 5 months ago
    • Power management
    • Power management forum
  • UCC28711: UCC28711

    seungpyo kang
    seungpyo kang
    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…
    • 8 months ago
    • Power management
    • Power management forum
  • Answered
  • RE: UCC28711: UCC28711

    Harish Ramakrishnan5
    Harish Ramakrishnan5
    Resolved
    Hi Seungpyo Thank you for the reply. I think the GND for controller signals looks very long. Ideally there should be a big pour to the controller signal GNDs from negative of C1. The gate return looks very long and this needs to be checked. The boxes…
    • 8 months ago
    • Power management
    • Power management forum
  • UCC28711: ucc28711

    cs power
    cs power
    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 wave…
    • 10 months ago
    • Power management
    • Power management forum
  • Answered
  • UCC28711: UCC28711

    cs power
    cs power
    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), I…
    • Resolved
    • 10 months ago
    • Power management
    • Power management forum
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