Battery charging to extend battery life and improve efficiency

摘要

Exemplary charging device includes a processor and charging current for coupling to a battery. In an exemplary embodiment, the processor defines charging profiles for charging the battery at different charge rates. A profile can be selected based on a determinable time event and may be modified based on a charging history. Adjustable charging power is supplied to the battery at a power level, a charging duration, or a combination thereof based on the selected profile. A wireless power transmitter can also define charging profiles and charging histories for receivers that receive power from the transmitter based on an identifier from the receiver. The transmitter can select the charging profile based on a determinable time event and may be modified based on a charging history. The transmitter supplies power through the wireless power link at a power level, a charging duration, or a combination thereof based on the selected profile.

主权项

1. An apparatus for wirelessly charging a battery powered device, comprising:
an antenna configured to transmit wireless power; and a processor operably coupled to the antenna and configured to:
collect a charging history of the battery powered device, the charging history comprising at least one stored charging start time and at least one stored charging stop time, the at least one stored charging start time comprising a first time when the battery powered device is placed within a charging area of the apparatus;generate at least one of a plurality of charging profiles based at least in part on the charging history;determine a presence detected time at which a presence of the battery powered device is detected within the charging area of the apparatus; andselect a charging profile from the plurality of charging profiles based on a determination that a charging start time of the battery powered device corresponds to a stored charging start time of the selected charging profile, the charging start time corresponding to the determined presence detected time.