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  • UCC28950-q1: Open loop oscillation

    TI Thinks Resolved
    Part Number: UCC256403 Other Parts Discussed in Thread: UCC28950-Q1 , , UCC28950 Tool/software: Hi team, Continuing the previous discussion. I found that it is loop oscillation. So, I tried to validate the converter in "open Loop" (EA+ voltage…

  • UCC28950-Q1: Duty Oscillation issue in Peak current control mode

    TI Thinks Resolved
    Part Number: UCC28950-Q1 Tool/software: Hi Team, I am using UCC28950-Q1 IC for Phase shifted ZVT converter for input 380VDC output will be 28VDC/ 40A. While validating upto 28VDC 4A load in 380VDC input converter was operating fine and no abnormality…

  • LMG3522R030-Q1: Simulation or Loss analysis support on GaN with UCC28950-Q1 PSFB controller

    TI Thinks Resolved
    Part Number: LMG3522R030-Q1 Other Parts Discussed in Thread: UCC28950-Q1 , Tool/software: Hello Team, I would like to use LMG3522R030-Q1 in OBC development using PSFB controller UCC28950-Q1. SLUC222 design calculation sheet used to size magnetics…

  • UCC28950-Q1: Power dissipation in active clamp MOSFET

    TI Thinks Resolved
    Part Number: UCC28950-Q1 Tool/software: Please refer the mentioned thread. What losses occur in an active clamp MOSFET? I'm using an active clamp MOSFET as a 650V GaN FET. e2e.ti.com/.../ucc28950-q1-secondary-ringing-voltage…

  • UCC28950-Q1: Allowed transient voltage

    Part Number: UCC28950-Q1 Tool/software: What is V_TRAN (Allowable transient overvoltage) in UCC28950-Q1. How to select it? I have to design the output voltage with max. 1% ripple.

  • UCC28950-Q1: How to prevent the initial gate pulse output.

    TI Thinks Resolved
    Part Number: UCC28950-Q1 Tool/software: Hello. I asked about the initial gate pulse in the thread linked below. ttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1421596/ucc28950-q1-more-questions-gate-pulses…

  • UCC28950-Q1: 200W Standby power supply

    TI Thinks Resolved
    Part Number: UCC28950-Q1 Tool/software: Hi We are working in a Automotive power supply design project. I noticed that the switching frequency chosen for both the transformer and the output inductor is the same in the SLUC222 and SLUA560D documents (June…

  • UCC28950-Q1: Secondary side Rectification

    TI Thinks Resolved
    Part Number: UCC28950-Q1 Other Parts Discussed in Thread: UCC28950 , UCC27714 Tool/software: Hi I am planning to develop 7KW PSFB,regarding secondary side should i go Diode rectification or Mosfet sync rectification Since UCC28950 give 2 secondary…

  • UCC28950-Q1: Out C gate pulses are not generated from IC

    TI Thinks Resolved
    Part Number: UCC28950-Q1 Other Parts Discussed in Thread: UCC28950 , UCC21520A Tool/software: Hi We have used IC UCC28950 for below application Input voltage: 270V to 360V Output voltage: 28V @ 40A Topology: Phase shifted full bridge ZVT converter…

  • UCC28950-Q1: Need Technical Support for UCC28950 PSPICE TI model

    Part Number: UCC28950-Q1 Other Parts Discussed in Thread: UCC28950 , UCC28951 Hi, I am going to design a 3kW Phase Shifted Full bridge Synchronous Rectifier (PSFSR) charger. The DC/DC converter details are given below. The DC/DC designing details…

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