STEVAL-ISB68WA does not work with a commercially available 5W Qi compatible transmitter. Is this normal?

[V.Gomez]

Hi,

I am working on a wireless power receiver test board 2,5W STEVAL-ISB68WA to develop an application with wireless charging.

STEVAL-ISB68WA does not detect a commercially available 5W Qi compatible transmitter (this one works properly).

According to “Getting started with STEVAL-ISB68WA wireless power receiver evaluation kit for wearable applications�? (see picture2), “The transmitter must be configured to have a ping frequency of 120 kHz and a 130 kHz -170 kHz operating frequency range�?.

Could you please tell me why the test board does not detect the transmitter?

Is this due to the transmitter ping frequency of 159.2 kHz (see picture1)?

Regards

GValere