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Showing 78 results View by: Thread Post Sort by
  • RE: PMP9041: in this reference design's BOM transformer part detail not found

    Brian King
    Brian King
    Hi Kamal, Here are the electrical specifications for the transformer. As Robert said, we do not specify the actual winding construction. GCI is the supplier for the transformer (part number G135049LF) on this reference design. GCI is happy to provide samples…
    • 8 days ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • RE: PMP3162: Unable to Find Transformer Details!

    Brian King
    Brian King
    Hi Vijay, We are happy to keep assisting you through this E2E forum. Please feel free to ask any additional questions you may have. thanks, Brian
    • 13 days ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • RE: PMP10344: TVS Diode

    Brian King
    Brian King
    Hi Arion, The varistors are there for surge protection, and do not play role in the actual power conversion. I don't think you will find any varistors that are significantly smaller, but if you already have surge protection elsewhere in your system you…
    • 18 days ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • RE: PMP9656: Function of R3 in PMP9656

    Brian King
    Brian King
    Hi Gary, R3 provides a low impedance to reduce ringing created by the current sense transformer on the drain of the primary MOSFETs. thanks, Brian
    • 1 month ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • RE: PMP8928: Change Vout- voltage

    Brian King
    Brian King
    Hi Roy, The only concern I see about sinking current would be at start up. The TPS40170 disables the low side FET during start up into a pre-biased output, so it will not be able to sink current during startup. Once startup is complete, it should be able…
    • 1 month ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • Answered
  • RE: PMP21479: Some questions about schematic diagram

    Brian King
    Brian King
    Resolved
    Hi Sergio, I agree with Robert that using our latest generation active clamp controller, UCC28782, will greatly reduce the amount of components because it integrates much more of these functions. To answer your questions: 1. Q100, Q101 and D101 eliminate…
    • 2 months ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • Answered
  • RE: PMP21549: Appropriate fuse value

    Brian King
    Brian King
    Resolved
    Hi Mark, I can't say for sure, because the schematic and BOM have the fuse holder listed rather than an actual part number for the fuse. However, it was likely the 37216300411 from Little Fuse, because it uses that style fuse holder and has an appropriate…
    • 4 months ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • RE: PMP9656: UP to 300W operation

    Brian King
    Brian King
    Hi Brant, Optimizing the efficiency at a different switching frequency will require some tuning of the three items you mentioned (transformer design, FET selection, and timing of the SR FETs.) Lower Rdson is not necessarily better for higher frequency…
    • 4 months ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • RE: PMP20742: C15 Polymer Bias Capacitor

    Brian King
    Brian King
    Hi Sith, Yes, an electrolytic capacitor can be used instead of a polymer for C15. thanks, Brian
    • 4 months ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • RE: PMP3162: Some design question for PMP3162..

    Brian King
    Brian King
    Hi Peter, U3 can be eliminated, as the UCC2897A is capable of driving the primary FETs. Only be careful that the UCC2897A is not too far away from the FETs in the layout. U1 and U4 are needed. These two drivers buffer the synchronous rectifier FETs from…
    • 5 months ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
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