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BQ501210 Wireless Power Transmitter EVM

Other Parts Discussed in Thread: BQ501210

Hi,

I am planning to use BQ501210 EVM reference design in the development of a wireless charger for my project. I want to know that if it FCC compliant ?

If it isn't that what would be required in the EVM design to make it FCC compliant.

Any help would be really appreciated.

Thanks.

  • Hi,

    Can anyone please get back on the above post.

    Thanks
  • We cannot guaranteed EMI compliance of a customer design with FCC or other emissions standard even if they are based on the EVM design.  Layout, form-factor, PCB, component selection are just some of the factor that will drive EMI performance. 

    Areas that will generate switching noise and require during layout:

    1.) Main output H-Bridge (EVM U2&U3) -- Switch nodes add place for snubber ckt on each node, keep high freq decoupling capacitors close to switch ckt and keep traces short.

    2.) Rail Buck (EVM U1) -- Switch node add place for snubber ckt, keep V-in decoupling capacitors close.

    3.) 19V to 3.3V Buck (EVM U5) -- Lowest power of the three but apply above to this ckt also.

    4.) Input Power LInes -- Common Mode choke add place for additional filter capacitor.

    5.) bq501210 IC (EVM U4) -- Internal HF clock, keep capacitors for Pin 44, 45, 46, 7 and 47 close to IC with good ground return back to IC.

  • Thanks for detailed guidelines.

  • Hi Bill,

    Is there any data available on the level of emissions radiated by the BQ501210 EVM or has there been any kind pre compliance emissions testing done on this board.

    Thanks.
  • Hi Bill,

    Can you please provide an answer to above question?

    Regards,

    Hur