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PMP41043: interface 3-phase input along with single phase

Mohammed Khan
Intellectual 280 points
Part Number: PMP41043
Other Parts Discussed in Thread: TIDM-1000

team, is there a way to have a 3-phase input interfaced to this design along with single phase? what changes would be required? Block diagram and circuit diagrams would be helpful.

PMP41043 reference design | TI.com

  • 0
    TI__Expert 3640 points

    Mohammed,

    If you have 3-phase input and you can access to Neutral point. You could apply 3x of PMP41043 to the 3-phase input with each of the PSU hooks to each of the 3-phase. I.e. PSU1 has its input connected to L1 & N, PSU2 connected to L2 & N, and PSU3 connected to L3 & N.

    Regards,

    Sheng-Yang Yu

  • 0 in reply to Sheng-yang Yu1
    Intellectual 280 points

    Sheng,

    My AC input is either single phase (Line and neutral)

    or

    a 3Phase 3wire (Delta connection). So how do I proceed? also Is possible to have a single controller to work with 3 phases? Please guide.

  • 0 in reply to Mohammed Khan
    TI__Expert 3640 points

    Mohammed,

    In that case, you can either use bridge rectifier without boosting the voltage up or use Vienna rectifier like TIDM-1000.

    As the rectified voltage of a 3phase Delta connected AC will be higher than a 1phase AC, you will need to redesign the isolated DC-DC stage to handle higher bus voltage.

    Regards,

    Sheng-Yang Yu