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Regarding Rx with > 7V regulated supply

Vinit Singh
Prodigy 20 points
Other Parts Discussed in Thread: BQ51021, BQ51020, BQ500215, BQ51025

Hello,


We are developing a wireless power solution which has a higher voltage requirement at the Rx output than the ones we have seen so far.

Specifically, the maximum Rx-output solution that we have found is a 7V solution from TI.

We are using TI IC's for the TX-side.

My questions are

1. Is there a solution that can provide a higher voltage output, between 9 V & 12 V?

2. If the answer to the above is no, we may try to develop something with other components. However, this may mean that we do not employ Qi- receiver IC. Does this imply that the TX-IC will not send power. Is there a work-around that TI has?

Thanks,

Vinit

nucurrent.com

  • 0
    TI__Genius 14890 points

    Vinit,

    The bq51020 has an adjustable output that goes up to 8V.  There are two other similar parts that also go to 8V (bq51021 adds I2C and bq51021 adds I2C and Dual mode capability for PMA and WPC).

    The bq51025 is in development and will be able to supply up to 10V (10W with the bq500215 transmitter - also in development).  Both devices will be Qi compliant and limited to 5W unless used together.

    There is also the possibility of adding a boost converter at the output.  What current is required?

    Regards,

    Dick