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Showing 39 results View by: Thread Post Sort by
  • UCC28633: VDD undervoltage error at minimal load

    Michal Staniak
    Michal Staniak
    TI Thinks Resolved
    Part Number: UCC28633 Dear team, I've made a circuit based on Webench design https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=7907418170D53B8D At no load, output voltage float around desired 70V but in case of load above 3mA voltage drops to…
    • over 2 years ago
    • Power management
    • Power management forum
  • UCC28633: UCC28633 and PMP30092

    Tirumalesh Peedi
    Tirumalesh Peedi
    TI Thinks Resolved
    Part Number: UCC28633 Hi, Can you please share specificatin for Transformer used in PMP30092 reference design. Thanks Tirumalesh
    • over 4 years ago
    • Power management
    • Power management forum
  • UCC28633: Protection to the UCC28633dr

    Rishav kumar verma
    Rishav kumar verma
    Part Number: UCC28633 i want to add 500v protection to the the application circuit of the above mentioned IC request you to please help
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • UCC28633: Malfunction in low power situation

    Bernat F.
    Bernat F.
    Resolved
    Part Number: UCC28633 Other Parts Discussed in Thread: UCC28634 , UCC28631 Dear Sirs. We have designed a flyback conveter using the UCC28633 with a defined output of 65V following the recomendations from corresponding technical notes. But we are having…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • UCC28633: "need help for AC/DC converter circuit Transformer"

    Jenish Bed
    Jenish Bed
    TI Thinks Resolved
    Part Number: UCC28633 Dear TI Team, I have attached an AC/DC TI Power Designer. They give me a circuit output of 16.8V and 10A. I found all components except transformer. https://webench.ti.com/power-designer/switching-regulator/customize/16?noparams…
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • UCC28633: EMI Filter and Pi filter

    Rishav kumar verma
    Rishav kumar verma
    Resolved
    Part Number: UCC28633 Hi, We are making a power supply with Input - 90v - 480v AC to output 12v 1A Using reference design for the same, I Request you to please suggest - A suitable specification for the EMI filter section, can we replace PI filter…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • UCC28633: UCC28633

    keshab sadhukhan
    keshab sadhukhan
    TI Thinks Resolved
    Part Number: UCC28633 I am Keshab I develop a smps with ucc28633 as per web design tool also transformer. Also follow all the recommendation. input is universal and output is 24v/5a. I faced starting problem. UCC28633_120X75.pdf
    • over 6 years ago
    • Power management
    • Power management forum
  • UCC28633: No load, low-power sleep mode

    Wouter Platteau
    Wouter Platteau
    Part Number: UCC28633 Other Parts Discussed in Thread: UCC28630 Hello, I've made a flyback schematic with the UCC28633. 110VAC to 230VAC input, 40VDC 2A output. With no load/light load i have the following behaviour. VDD goes up with HV current source…
    • over 4 years ago
    • Power management
    • Power management forum
  • Answered
  • UCC28633: My design for 13V 65W Power Supply using UCC28633 is not working

    Sambuddha Khan
    Sambuddha Khan
    Resolved
    Part Number: UCC28633 Other Parts Discussed in Thread: UCC28600 , PMP Hello... I have designed a power supply using UCC28633 and developed the board. My design was based on UCC28633 Excel Design Calculator and WEBENCH design tool. Unfortunately, when…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • UCC28633: UCC28633 -- how to avoid Vdd(OVP) tripping due to primary-winding demagnetization voltage overshoot?

    Ken MacKillop
    Ken MacKillop
    Resolved
    Part Number: UCC28633 Query regarding UCC28633 application ********************************************** I am trying to apply the UCC28633 in a SMPS circuit with 120ac input, 100V output, and 8mA up to 1A (transient or pulsatile) load. At loads of only…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
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