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TIDA-00951: looking for much higher output design such as 25-100kW

Shai Berman
Mastermind 7405 points

Part Number: TIDA-00951

Hello DC/DC design team,

my customer is planning to design EV charger (level 2-3), he is interested in developing dc to dc with output voltages of 200 to 400 volts and currents of 125 amperes to 300 amperes (Between 25 kW and 100 kW).

Do we have any reference design of DC/DC with multi KW solution? (maybe it possible to cascade a few ref.desgin in parallel connections to gain more currents) 

I would be happy if you could suggest anything is suitable, Thanks.

Best regards,

Shai

  • 0
    Mastermind 7405 points
    Dear team,

    there is any update?
  • 0 in reply to Shai Berman
    TI__Expert 3070 points

    Shai,

    Is there a particular reason you are looking at TIDA-00951?

    An LLC topology like that in TIDM-1001 would be a better fit for the power and voltages required here and would scale well.

    You are correct that using multiple 10-15kW converters cascaded to reach the system power level will work well.

    Regards,

    Bart Basile

  • 0 in reply to Bart Basile
    Mastermind 7405 points
    Bart,

    Thank you for your suggestion, but TIDM-1001 have an output voltage of 12V my customer is designing a fast EV chager (level 3) which need a 200-450V out with up to 500A (total of 25 kW and 100 kW).
    there is a really good app note about it
    www.ti.com/.../sway014.pdf -Level 3 EV charging stations

    I have a few more inputs that need to be considered as well.
    the customer inputs are 48V DC
    an output of 200-450V DC up to 500A

    can you please recommend a reference design which meets those requirements?
    Thanks a lot,

    Regards,
    Shai
  • 0 in reply to Shai Berman
    TI__Expert 3070 points

    Shai,

    I looked a little more into the application, and no longer feel that TIDM-1001 will be suitable. The LLC architecture works well for an OBC, but the topology does not lend itself well to being placed in parallel.

    A phase shifted full bridge or dual active bridge topology would be the best option for what you are looking for here. The only relevant TIDesign that we currently have for these is TIDM-PSFB-DCDC. Regrettably, we do not have specific documentation regarding scaling the design to a higher power level or adjusting the input and output voltages. This effort would be left up to the customer.

    We do have a few documents regarding these topologies that may prove useful:

    http://www.ti.com/lit/an/slyt727/slyt727.pdf

    Review the boost operation here: http://www.ti.com/lit/ug/tiduai7/tiduai7.pdf