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can I use wireless charging IC in a resonant frequency of 13.56HZ?

helpm
Associate

‎2023-11-22 09:04 PM

I want to buy a wireless charging IC like STWBC86JR, but the data sheet says that it should be within the standard frequency of 110kHZ to 205kHZ, so can't I use it with a resonant frequency of 13.56MHz? Is there an IC available on that frequency? Is there a way to design an additional circuit and communicate at that frequency?

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Peter BENSCH
ST Employee

‎2023-11-23 02:57 AM

Welcome @helpm, to the community!

The STWBC86 is a Qi power transmitter, i.e. it is set to the frequency range 100...205kHz defined in the Qi standard.

There is currently no comparable power transmitter available for 13.56MHz, but there are possibilities to communicate and to do wireless charging with NFC.

Does it answer your question?

Regards
/Peter

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