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Original question:

TIDA-00779: MOSFET DRIVER PROBLEM

TIDA-00779: Boost Inductor value

Rupesh Wandhare
Prodigy 20 points
Part Number: TIDA-00779

Hi,

I am trying to develop this 3.5kW pfc using TI reference 230-V, 3.5-kW PFC (TIDA-00779). 

Unfortunately, schematic and BOM indicate different values for L1. 

Is L1 180uH, 30A or 780uH, 30A?

Where can I buy evaluation module  TIDA-00779?

With regards,

Rupesh 

 

 

  • 0
    TI__Expert 5130 points
    Rupesh, hello and thank you for your interest in Texas Instruments and its TI Design. Your question regarding the correct L1 value has been forwarded to the owner of the design. You should hear back from him within 1-2 business days.

    Regarding the purchase of the design, most of our TI Designs are not available for purchase. Instead, we provide the customer with the schematics, BOMs, and Gerber files such that you can build the subsystem yourself per your own system design requirements. In receiving your L1 technical question, the design owner will advise you if we have any sample boards available. As this design is over 2 years old, there may not be any boards available from our initial build/test run of the design. We just want to set expectations accordingly here.

    Best Regards,

    John Fullilove
    Texas Instruments
    TI Designs
  • 0
    TI__Intellectual 950 points

    Hi Rupesh,

    Sorry for confused, the material of L1 is AlFeSi, the 180uH is the inductance of L1 left under full load (30A), the 780uH is the initial value of L1, any questions please feel free to let me know, thanks.

    BR

    Jason

  • 0 in reply to Yuan Tao
    Prodigy 20 points

    Perfect.

    Thanks,

    Rupesh