• UCC28951-Q1: Excel sheet errors ucc28851

  

  Mohammed Khan

  Part Number: UCC28951-Q1 Tool/software: 1. The delay resistor values calculated in excel sheet vary based on shim inductor value and transformer leakage inductance value. Which row is correct and where to fill data ? 2. In application notes , we have…

  • 10 months ago
  • Power management
  • Power management forum

• UCC28951: Ringing at output during series connection.

  

  Mohammed Khan

  TI Thinks Resolved

  Part Number: UCC28951 Tool/software: Hi Mike, Schematic is reviewed by you which was shared to you by Nihil. Vin: 280VDC Load : 26V regulated, 10A Transformer primary inductance: 2mH 1. Below are the primary current waveforms, Along with inductor…

  • over 1 year ago
  • Power management
  • Power management forum

• UCC28951-Q1: Input capacitor and Duty cycle Clamp

  

  Mohammed Khan

  TI Thinks Resolved

  Part Number: UCC28951-Q1 Tool/software: Hello Mike, 1. My Latest PCB version has DC Bulk capacitors placed far ( due to device and board constraints ) and connection to CT is through the PCB Plane. Near to CT , I have Smaller value Bypass caps placed…

  • 9 months ago
  • Power management
  • Power management forum

• UCC28951: Duty cycle varies a lot at a give load above 50% full load.

  

  Sagar Modi

  Part Number: UCC28951 Tool/software: Hi Mike, I am running the PSFB topology with Diode full bridge on the secondary side of the converter with UCC28951 controller. As I increase load above 250W, the converter generates loud noise. From the waveform…

  • 10 months ago
  • Power management
  • Power management forum

• UCC28951-Q1: Isolated gate drivers

  

  Mohammed Khan

  TI Thinks Resolved

  Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC21530 , UCC21520 , UCC28951 , UCC28950 , UCC27714EVM-551 Tool/software: Hello Mike, Hope you doing good and are back from vacation. Couple of problems to discuss. Below are new updates…

  • over 1 year ago
  • Power management
  • Power management forum

• UCC28951-Q1: spice model of ucc28951-q1

  

  VIPIN KUMAR

  TI Thinks Resolved

  Part Number: UCC28951-Q1 Other Parts Discussed in Thread: TINA-TI , UCC28950 , UCC28951 I need spice model of ucc28951-q1. So that I can use it in Tina -ti simulation

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• UCC28951: As full bridge LLC controller

  

  Husan Hayran

  Resolved

  Part Number: UCC28951 Other Parts Discussed in Thread: LM5045 , UCC28250 Tool/software: Hello Can I use UCC28951 controller for DC-DC full bridge LLC converter? Thanks.

  • Resolved

  • over 1 year ago
  • Motor drivers
  • Motor drivers forum
Answered

• UCC28951: UCC28951

  

  Ayham Sabra

  Resolved

  Part Number: UCC28951 Other Parts Discussed in Thread: UCC28950 I was wondering if it is possible to get a copy of the unencrypted Pspice lib file for the UCC28951 or UCC28950. Thank you

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• UCC28951: Compensation Network Design for high output voltage of 385V

  

  Ahmad Kamal

  Resolved

  Part Number: UCC28951 Tool/software: Dear TI Support Team, I hope this message finds you well. We are currently designing a power supply utilizing the UCC28951 controller IC for a PSFB converter. Our power supply operates with a 350V nominal input…

  • Resolved

  • over 1 year ago
  • Power management
  • Power management forum

• UCC28951-Q1: Primary voltage dip and rise for short duration

  

  Mohammed Khan

  TI Thinks Resolved

  Part Number: UCC28951-Q1 Other Parts Discussed in Thread: UCC28951 Tool/software: Hello Mike. We are using second version of transformer with 8mH inductance and 27 turns ratio. Now input voltage will be from 600V to 950VDC. The leakage inductance…

  • over 1 year ago
  • Power management
  • Power management forum

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