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TI Home » TI E2E Community » Support Forums » Power Management » AC/DC and Isolated DC/DC Power » AC/DC and Isolated DC/DC Power Forum » DC DC Converter Uin= 300V, Uout=110V, Iout= 150A
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DC DC Converter Uin= 300V, Uout=110V, Iout= 150A

  • lumi tuan anh
    Posted by lumi tuan anh
    on Apr 06 2012 02:38 AM
    Prodigy30 points
    We are designing DC DC Converter with parameter as below
    - INPUT Uin=300VDC - OUTPUT: Uout= 110VDC, Iout= 150A
    We wonder how to choose suitable DC DC topology. Sync-buck is ok ?
    Thanks in advanced!
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  • John Bottrill
    Posted by John Bottrill
    on Apr 09 2012 07:14 AM
    Mastermind25130 points

    Lumi,

    AT the power levels you are planning to operate at i would suggest a phase shifted full bridge topology using a UCC28950 controller.

    Regards,

    John

    John Bottrill

    UCC28950
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  • lumi tuan anh
    Posted by lumi tuan anh
    on Apr 09 2012 22:03 PM
    Prodigy30 points

    John,

    We use none- isolated DC DC

    So do you have any advice ?

    Thanks

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  • John Bottrill
    Posted by John Bottrill
    on Apr 10 2012 08:15 AM
    Mastermind25130 points

    Lumi,

    The simplest design would be a simple buck converter using a transformer driven switch for the pulse width modulation. with 300 volts in and 110 volts out the duty cycle should be about 30%

    Regards,

    John

    John Bottrill

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