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BQ51050B: CAlibrating RX FOD with bq500412EVM-584

Part Number: BQ51050B

Hello,

We are using Texas Instruments Qi charging receivers to develop wearables, and other sensors, with Qi charging capabilities, and we would like to clarify some points about the FOD calibration of the RX side.

We have searched for information on how to perform this calibration and we found a couple of videos from Dick Stacey in the TI Training website where this issue is explained (training.ti.com/wireless-power-101-fod-lab-session). Our question is about the tools used to perform the calibration. In the video it is referred the use of the "AVID Technologies Qi FOD transmitter", but this tool is too expensive for our current budget. What I would like to ask is if we can use the Texas Instruments bq500412EVM-584 (which we already have at home) along with the "bqTESLA TX Tuning Tool Software for FOD set up" referred on the evaluation module data sheet.

If yes, were can we find the bqTESLA TX Tuning Tool Software for FOD set up, and documentation on how to use it?
If not, why cannot we use the bq500412EVM-584? Are there any alternatives to the AVID Technologies Qi FOD transmitter?

As a last remark, I will just note that the sensors are not going to be Qi certified.

Thanks,

Carlos

3 Replies

  • Hello
    You are not doing a Qi certified system but will you build both RX side and TX side? Will they only be used together?

    The bq500412EVM-584 (standard TX) cannot be used to calibrate RX FOD and replace the AVID Technologies QI FOD transmitter.
    Also the Standard RX cannot be used to calibrate the TX FOD.
    If you are building RX and TX that will be sold and used together it may be possible to align FOD settings on the two units so they work well together.

    Best Regards,

    Bill Johns,  Applications Engineer

    Texas Instruments Inc

    Dallas, Texas

    Note:  If this answer solves your question please click the "Verify Answer"  button.

  • In reply to Bill Johns:

    Hello,

    We will only build the RX.
    Do you know a cheaper alternative to the AVID Technologies QI FOD transmitter?
    What makes it different from the bq500412EVM-584, or other similar device, to be the device to use for this calibration?

    Thanks,
    Carlos
  • In reply to Carlos Resende:

    Hi Carlos
    If you build only the RX it will and rely on customers to purchase a TX then your RX unit will need to have a good FOD calibration run on it.

    Do not have alternative for AVID FOD TX. You may check with them they may offer an FOD calibration service for less.

    Best Regards,

    Bill Johns,  Applications Engineer

    Texas Instruments Inc

    Dallas, Texas

    Note:  If this answer solves your question please click the "Verify Answer"  button.