公开(公告)号：US20230079950A1

公开(公告)日：2023-03-16

申请号：US17655533

申请日：2022-03-18

申请人： Apple Inc.

发明人： Brennan K. Vanden Hoek ,  Makiko Kawamura Brzezinski ,  Miranda L. Daly

IPC分类号： H02J50/90 ,  H02J50/10 ,  H01F7/02

摘要： A magnetic alignment assembly can be incorporated into an electronic device to facilitate alignment with another device. The magnetic alignment assembly can include a main magnet (e.g., a square or rectangular magnet) having a magnetic dipole in an axial direction and a ring magnet coaxial with the main magnet. The ring magnet can be smaller than the main magnet. The ring magnet can be positioned between the main magnet and an interface surface.

公开(公告)号：US20220407355A1

公开(公告)日：2022-12-22

申请号：US17655329

申请日：2022-03-17

申请人： Apple Inc.

发明人： Makiko Kawamura Brzezinski ,  Eric X. Zhou ,  Brennan K. Vanden Hoek ,  Saining Ren

IPC分类号： H02J50/10 ,  H02J50/00 ,  H02J50/70 ,  H02J7/00 ,  H01F27/28 ,  H01F38/14

摘要： In a wireless charging system, a transmitter coil of a wireless charger device and a receiver coil of a portable electronic device can operate at either of two different operating frequencies. The low frequency can be in a range from about 300 kHz to about 400 kHz, and the high frequency can be in a range from about 1 MHz to about 2 MHz. To provide efficient charging at both frequencies, the transmitter and receiver coils can be formed from a compound, or multi-stranded, wire.