| CPC H02J 50/60 (2016.02) [H02J 7/02 (2013.01); H02J 50/10 (2016.02); H02J 50/12 (2016.02); H02J 50/20 (2016.02); H02J 50/402 (2020.01); H02J 50/80 (2016.02); H02J 50/90 (2016.02)] | 8 Claims |
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1. A wireless power receiver that receives power from a wireless power transmitter, the wireless power receiver comprising:
a communication unit configured to communicate with the wireless power transmitter; a memory configured to store information on a reference quality factor and a reference peak frequency; and
a controller,
wherein the controller generates a foreign object detection (FOD) status packet including information on the reference quality factor or the reference peak frequency,
wherein the communication unit transmits the FOD status packet to the wireless power transmitter,
wherein the communication unit receives, from the wireless power transmitter, a foreign object detection indicator indicating whether a foreign object is present in a charging area of the wireless power transmitter in response to the FOD status packet,
wherein the FOD status packet has a length of two bytes,
wherein one byte of the FOD status packet includes a six-bit reservation field and a two-bit mode field,
wherein all bits of the reservation field are recorded as zero, and
wherein when the foreign object detection indicator indicates that the foreign object is not present in the charging area, the controller is configured to perform a wireless charging procedure with a first power.
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