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AC DC 1kW

Antonio Faggio
Expert 7910 points
Other Parts Discussed in Thread: UCC28951

Hi,

For a new project I need some recommendations in terms of products/Ref Designs/Eval Board for:

ACDC converter, 1kW, AC in 110-230Vac, DC out 27.6V@36A with no PFC.

Afterwards this ACDC supplies a DCDC, DCin 19-30V, DCout +- 75Vdc outP250W powering an audio OpAmp. I would need high switching f here so to reduce footprints of passives. Any comments?

This post can be only for the first stage, while the following E2E thread for the DCDC stage in case two different PLs need to intervene: https://e2e.ti.com/support/power-management/f/196/t/870978  

Many Thanks,

Antonio

  • 0
    TI__Expert 8210 points

    Antonio 

    For the AC/DC design specification we recommend a phase shift full bridge topology with UCC28951.  This topology/device can work directly with an AC input with a passive diode bridge rectifier.

    We don't have a reference design at their design requirements, but Webench can provide a design that meets their requirements here webench.ti.com/.../SDP.cgi

    Best Regards,

    Eric