TI E2E support forums
TI E2E support forums
  • User
  • Site
  • Search
  • User
  • E2E™ design support >
  • Forums
    • Amplifiers
    • API solutions
    • Audio
    • Clock & timing
    • Data converters
    • DLP® products
    • Interface
    • Isolation
    • Logic
    • Microcontrollers
    • Motor drivers
    • Power management
    • Processors
    • RF & microwave
    • Sensors
    • Site support
    • Switches & multiplexers
    • Tools
    • Wireless connectivity
    • Archived forums
    • Archived groups
  • Technical articles
  • TI training
    • Tech days
    • Online training
    • Live events
    • Power Supply Design Seminar
  • Getting started
  • 简体中文
  • More
  • Cancel


Search tips
Showing 36 results View by: Thread Post Sort by
  • UCC28781-Q1: UCC28781

    vinayak lele
    vinayak lele
    Other Parts Discussed in Thread: UCC28781-Q1 , UCC28782 , UCC28781 Tool/software: Hi, I am designing isolated DC to DC converter for EV 2w/3w automotive application with following specification. Electrical: DC-DC Converter (72V to 12V) Input Voltage…
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • UCC28781: About adaptive ZVS control

    Ryoma Ohashi
    Ryoma Ohashi
    Resolved
    Part Number: UCC28781 Tool/software: Hi team, I have a question about adaptive ZVS control. If Vsw doesn't reach Vth(sws) within tz, the IC will make the tdm longer to make the negative Im bigger, right? What if Vsw reachs too fast to Vth(sws…
    • Resolved
    • 4 months ago
    • Power management
    • Power management forum
  • UCC28781: Audible noise in ABM

    Marc Fournier
    Marc Fournier
    Part Number: UCC28781 Tool/software: Hi, The audible noise is really high when the converter is in ABM (burst mode). In AAM, there is no noise. I tried to adjust Rbur1 and Rbur2, to exit burst mode at 20% of max power. But actually it exits this…
    • 9 months ago
    • Power management
    • Power management forum
  • UCC28781: Reflow profile

    Nicholas Carley
    Nicholas Carley
    Part Number: UCC28781 Hello, We are working on some assembly failures for the board. Do we have a recommended reflow profile for the chip? Nick
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • UCC28781: Can UCC28781 support 200W application without PFC?

    Shaofeng Luo
    Shaofeng Luo
    Resolved
    Part Number: UCC28781 Other Parts Discussed in Thread: UCC2897A Hi team Customer wants to develop 200W AC-DC with Flyback, 85V~264VAC standard input, and due to low-cost consideration, they want to use UCC28781 to finish this 200W power without PFC…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • UCC28781-Q1: Max Power Conversion possible with UCC28781

    Vaibhav Chandra
    Vaibhav Chandra
    TI Thinks Resolved
    Part Number: UCC28781-Q1 Other Parts Discussed in Thread: UCC28781 , , UCC28782 Hello, Pout <400W is possible to achieve with UCC28781 IC, with Single stage PFC Forward converter? Is Simulation model available for this IC? Thanks
    • over 3 years ago
    • Power management
    • Power management forum
  • UCC28781-Q1: Calculating VBUR target voltage VBUR_tgt

    Ashlesh Bhat
    Ashlesh Bhat
    TI Thinks Resolved
    Part Number: UCC28781-Q1 Other Parts Discussed in Thread: UCC28781 , UCC28782 Hello, I am going through the design steps in the datasheet of UCC28781-Q1 to design a AC - DC converter. But I am stuck at VBUR calculations in 8.2.2.4 which says "The…
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • UCC28781: 65W Adpater topology choice

    J
    J
    Resolved
    Part Number: UCC28781 Other Parts Discussed in Thread: UCC28782 Dear Experts, I am in search of a topology for a 65W adapter with Power Delivery (PD) functionality. I am currently considering two topologies: Active Clamp Flyback (ACF) and Active High…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • UCC28781: Maximum input voltage

    Valentinas Pancerovas
    Valentinas Pancerovas
    TI Thinks Resolved
    Part Number: UCC28781 Hello TI, Is there an input overvoltage protection? I have a dual 24V 0.85A and 24V 0.18A output transformer with Vin 30-72V. As i reach 85V, it starts to make some strange noise and at around 86V it stops switching, then…
    • over 2 years ago
    • Power management
    • Power management forum
  • UCC28781: Suitable Flyback controller

    Charles Zhang1
    Charles Zhang1
    TI Thinks Resolved
    Part Number: UCC28781 Other Parts Discussed in Thread: UCC28782 Hi Team, My customer is surveying suitable Flyback controller solution to meet - 347~480Vac_in / 60Vdc_out / 90W requirement Do you have any suggestion here? Thanks.
    • over 1 year ago
    • Power management
    • Power management forum
>

Didn't find what you are looking for? Post a new question.

  • Ask a new question